Which is an example of an idiosyncratic reaction?
a. Nausea after taking an antibiotic agent
b. Excitement and agitation after taking a sedative
c. Increased clotting time after taking heparin
d. Sedation after taking a sleeping pill
Answer ; A
Idiosyncratic reactions are unpredictable and not explained by the pharmacologic properties of the drug. An example is the individual with infectious mononucleosis who develops a rash when given ampicillin.
Definition. Idiosyncratic drug reactions are adverse drug reactions that do not occur in most patients at any dose and do not involve the known pharmacological properties of the drug.
hope this helpin the human nervous system, what is a synapse? A. The difference in ionic charge between the inside and outside of a neuron B. the chemical signal that binds to the next call in a neuron C. A type of neuron that transmits signals from one neuron to the next D. The space between two neurons
Answer:
D
Explanation:
For more info, try specifically researching about synapse junctions
A synapse is a space between two neurons.
Where is the synapse between two neurons?The junction between the axon of one neuron and the dendrite of another, through which the two neurons communicate.
Why is there a gap between two neurons?The gap between two neurons called synapses helps in the quick transmission of impulses from one neuron to another. Other advantages of the synapse are Amplification of current flow.
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Which type of mutation occurs when the wrong base is used? A.There is no mutation. B. substitution C. insertion D. deletion
Answer:
B. substitution
Explanation:
Explain the basic steps in the first half of photosynthesis. Describe the movement of electrons and the importance of hydrogen ions in developing a proton gradient that allows for ATP production.
Answer:
This simply refers to photolysis of water.
Explanation
Generally,two steps are involved in photosynthesis.
The light dependent stage or light reaction,(which is the first part of photosynthesis,
The light independent stage (which is the second part.)
The light independent reactions involved the trapping of sunlight by the photo systems, in the leaves,and the splitting of the water molecules by sunlight.
H20 + Sunlight → 1/2H+ +2 e- +1/2 O2.
The movement of electron can be cyclic or non cyclic photophosphorylation, In Cyclic, photo system 1 absorbs the electrons and pass these to the primary pigments in the leaves. This excited the electron in chlorophyll molecule to higher energy levels , The electron emitted from the leaves is by a process called by photoactivation The emitted electron do not return to the photosystems,rather they are pick up by the primary electron acceptors and returned to the chlorophyll molecules by electron carriers,NADP.
During this process Energy is released for ATPase synthase of ATP for phosphorylation of ADP with phosphate,
In Non-cyclic photophorylation,photosystem I and II absorbs the electrons as Z-scheme movement of electrons.,Photoactivation of chlorophyll takes place as in the Cyclic.The primary electron acceptors takes the excited electrons to move along the chain of electron carriers.This makes the photosystems positively charged.
Hence to regain stability the primary pigment of photo system 1 takes electrons from photosystem II.To replace its lost electrons, P II takes electrons from the photolysis of water.ATP is generated as the carriers molecules transport electrons from the energy produced.
The hydrogen ions is used for the production of electrochemical gradients,which supplies the energy used by the ATPase synthase for the ATPs production.The process is called chemiosmosis. It involved the transports of H atoms by NADPH into the stroma,and the splitting of these into protons and electrons,The electrons form ETC,which forms the PMF.The latter pumped protons into the thylakoid membrane,and as this returns it generate the electrochemical gradient.
The ATP is used in the Calvin Cycle for CHO,proteins productions,
Corn oil has a density of 0.7 g/cm3. Water has a density of 1.0 g/cm3. A piece of plastic with a density of 0.9 g/cm3 will _____.
sink in corn oil and in water
sink in corn oil and float to the top of water
float in corn oil and in water
sink in corn oil and float in the middle of water
Answer:
Corn oil has a density of 0.7 g/cm3. Water has a density of 1.0 g/cm3. A piece of plastic with a density of 0.9 g/cm3 will sink in corn oil and float to the top of the water.
Explanation:
Density is a unit that let us know the quantity of mass that a substance has per unit of volume. In a solution, the component with lower density will float, and be on the surface.
If we compare the densities of corn oil and a piece of plastic, the plastic will sink because its density ( 0.9 g/cm³ )is higher than the one of the corn oil (0.7 g/cm³).
In the case of the water, the plastic will float to the top because its density ( 0.9 g/cm³) is lower than the one of water (1.0 g/cm³).
Which type of current flows in only one direction and is produced by a battery? magnetic voltage alternating direct
Answer:
Direct
Explanation:
Direct current flows in one direction are often referred to as unidirectional (uni- one, directional -direction). Whereas, other current flows typically can reverse the flow from time to time which is present in case of Alternating current flow
Direct
Current FlowThe pace at which electrons flow past a location in a complete electrical circuit is defined as current.The flow of electric charges with respect to time is referred to as current flow. When an electric charge flows in one way in an electric circuit, the current flows in the opposite direction.Direct current flows in only one direction and is produced by a battery.For more information:
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what type of root found in the bryophyllum ?
The root that found in the bryophyte is Rhizoid
Match the name of the greenhouse gas with one of the human activities that produces it.
carbon dioxide
industrial processes
fluorinated gases
agricultural and industrial activities
methane
production and transport of oil and natural
gas
nitrous oxide
burning fossil fuels
Answer:
carbon dioxide- burning of fossil fuels
fluorinated gases- industrial processes
methane- production and transport of oil and natural
gas
nitrous oxide- agricultural and industrial activities
Explanation:
Greenhouse gases are gaseous components that induces greenhouse effect. This means that due to their structural ability to trap heat energy in the atmosphere, they contribute to the global warming effect on the Earth. However, this greenhouse gases are produced in large amounts as a result of the day-to-day anthropogenic activities. The following are the greenhouse gases and how they are produced.
Carbondioxide (CO2)- Carbondioxide is the most common and important greenhouse gas. It is generated via natural processes like respiration but also produced when fossil fuels e.g coal, petroleum etc. are burned.
Fluorinated gases- This is another greenhouse gas caused by activities of man. Fluorinated gases are produced in industries during the production of certain products.
Methane- Methane is a gaseous hydrocarbon and the principal constituent of natural gas. Therefore, the production and transportation of oil and natural gases can lead to the escape of methane into the atmosphere.
Nitrous oxide- Nitrous oxide is an oxide of nitrogen. It is mainly produced via agricultural processes such as nitrification and denitrification or use of fertilizers etc. and also industrial actions.
Answer:answer in pic
Explanation:
when a child is born with down syndrome when did the mutation occur
Answer:
Down syndrome occurs when the nondisjunction occurs with Chromosome 21. Meiosis is a special type of cell division used to produce our sperm and egg cells.
what faution generator????
Answer:
Fusion power is a proposed form of power generation that would generate electricity by using heat from nuclear fusion reactions. In a fusion process, two lighter atomic nuclei combine to form a heavier nucleus, while releasing energy. Devices designed to harness this energy are known as fusion reactors.
Dark skin (a result of increased melanin production in equatorial peoples) is likely a response to ultraviolet (UV) radiation, because UV radiation can cause Group of answer choices skin cancer. hypothermia. rickets. hypoxia.
Answer:
skin cancer
Explanation:
because a human skin system is not evolved to handle the harsh conditions invoked by ultraviolet rays
Which of the following groups is a population
Describe 2 facts about organic molecules
Organic compounds are composed mostly of carbon atoms.
Organic compounds make up life.
Study the diagram of the geologic time scale. Which method is most likely used to identify what happened before the start of the Paleozoic era?
Hello. This question is incomplete. The full question is:
Study the diagram of the geologic time scale. Which method is most likely used to identify what happened before the start of the Paleozoic era?
a. Scientists study fossils from the Jurassic period.
b. Scientists observe index fossil records of the Mesozoic era.
c. Scientists examine fossil evidence during the Precambrian time.
d. Scientists explore the emergence of mammals and humans in the Cenozoic era.
Answer:
c. Scientists examine fossil evidence during the Precambrian time.
Explanation:
As you may already know, to facilitate the study of the geological periods of the earth, scientists, especially geologists, decided that the history of the earth should be buried in eras, periods and geological periods, so that the studies could be done in more specific and organized way.
The geological era before the Paleozoic era is the Precambrian period. During this period, there were forms of life on earth that generated fossils that allow scientists to record, date and understand this period, in addition to being able to relate it to others. Thus, the method most likely used to identify what happened before the beginning of the Paleozoic era would be to examine fossil evidence during the Precambrian period.
Answer:
c. Scientists examine fossil evidence during the Precambrian time.
Explanation:
edge 2021
Which is the correct sequence of events when the RER delivers transport vesicles to the Golgi apparatus? 1 – Small vesicles move material from one cisterna to the next. 2 – Enzymatic modification occurs. 3 – Arrival at the trans face. 4 – Arrival at a cisterna known as the cis face."
Answer:
The correct order of events when RER delivers transport vessicles to the Golgi apparatus are;
4,2,1,3
Arrival at a cisterna known as the cis face."
Enzymatic modification occurs.
Small vesicles move material from one cisterna to the next.
Arrival at the trans face.
Explanation:
Rough endoplasmic recticulum are flat sacs in the cytoplasm that help in the synthesis of protein. It vesicle or sac floats through the cytoplasm to the Golgi apparatus and is absorbed. The Golgi apparatus is an organelles in the cytoplasm that help to package protein into membrane bound organelle in the vessicles.
The vessicles that bud off join to the rough endoplasmic recticulum, Molecules travel through the Golgi apparatus through the vesicle transport till they get to the end of the assembly line at the biggest sacs from endoplasmic recticulum called the trans-Golgi.
Firstly, the particles arrive at cisterna known s Cis face. The cis face is the end of the organelle where substances enter from the endoplasmic reticulum for processing into the Golgi apparatus.
Then there is enzymatic modifications which is done by the activities of enzymes.
Small vessicles then Transport material from the cisterna.
It is then transported to the trans face. The trans face is where the particles leave in the form of smaller detached vesicles.
Which statement about DNA is false? It can be used to identify an individual person. It is found in nearly all the cells of all living things. It can be found in human saliva, hair, and blood. Plants have DNA in three places: the nucleus, chloroplasts, and mitochondria. Humans lack DNA in their brain cells.
Answer:
Humans lack DNA in their brain cells.
Explanation:
hey its jolenethebean my account got deleted again anddd what is the diffrence between monomers and polymers
Answer:
Polymer means many monomers. Sometimes polymers are also known as macromolecules or large-sized molecules. Usually, polymers are organic (but not necessarily). A monomer is a molecule that is able to bond in long chains.
Explanation:
Which location would best be described as a biodiversity hotspot? A. A coral reef that has lost a significant number of its species due to water pollution B. A desert that contains fewer than 10 species of animal per square hectare C. A stretch of melting ice in the Arctic Sea that can no longer support its polar bear population D. A tropical rainforest that contains hundreds of species of birds and thousands of species of vine
Answer:
a
Explanation:
coral reef that has lost a significant number of its species due to water pollution
A coral reef that has lost a significant number of its species due to water pollution best be described as a biodiversity hotspot, hence option A is correct.
How coral reef act as a biodiversity hotspot?This is so that fish, crustaceans, and other living things have a place to dwell thanks to coral reefs. They are more ecologically diverse than rainforests. And ecosystems depend on biodiversity for food, health, and resilience. Similar to a soccer team without a defense is a loss of biodiversity.
Many people think coral reefs contain greater biodiversity than any other environment on the earth, even more than a tropical rainforest. More than 25% of all marine life lives on coral reefs, which make up less than 1% of the ocean floor.
Therefore, a coral reef that has lost a significant number of its species due to water pollution best be described as a biodiversity hotspot.
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The protein RDA for adults is 0.8 grams per kilogram of healthy body weight per day. A woman weighs 60 kg and her weight falls within the normal range for her height. How much protein (in grams) should she consume in one day?
Answer:
Amount of protein required = 48 gram
Explanation:
Given:
Adult required = 0.8 gram protein per kg
Weight of women = 60 Kg
Find:
Amount of protein required
Computation:
⇒ Amount of protein required = Total body weight × 0.8 gram protein
⇒ Amount of protein required = 60 × 0.8
⇒ Amount of protein required = 48 gram
Which of the following is TRUE regarding the flow of blood through the heart:__________
a) The pulmonary artery carries deoxygenated blood.
b) The aorta is responsible for carrying oxygenated blood to the pulmonary system.
c) During systole, blood is going from the atria to the ventricles by gravity.
d) During diastole, blood is flowing over the semilunar valves
Answer:
a The pulmonary artery carries deoxygenated blood.
Explanation:
This is the the only artery that transports deoxygented blood in mammals. specifically it carry deoxgenated blood from the the atria to the pulmonary circulation. That is to the lungs for the exchange of the C02 in the deoxygenated blood with oxygen in the lungs.
The blood thus become oxygenated,and therefore return through the pulmonary veins to the left ventricle.
From the left ventricle ,through ventricular systole,blood is empty into the aorta through the aortic valves into the systemic circulation.
Although,they carry blood away from the heart,but the blood is de oxygenated instead of the usual oxygenated by arteries,They are still regarded as arteries because of convey of blood away from the heart,a typical role of arteries
Which statement does not support the endosymbiotic theory?
1.) Mitochondria and Chloroplasts reproduce independently from the cell.
2.) Mitochondria and Chloroplasts contain their own ribosomes.
3.) Mitochondria and Chloroplasts have DNA that resembles bacterial DNA.
4.) Mitochondria and Chloroplasts are much larger than prokaryotic cells.
4.) Mitochondria and Chloroplasts are much larger than prokaryotic cells.
no, they are about the same size, another good argument for the endosymbiotic theory is the presence of prokaryotic ribosomes (30S)
The statement that does not support the endosymbiotic theory is:
4.) Mitochondria and Chloroplasts are much larger than prokaryotic cells.
Lynn Margulis, in her endosymbiotic theory, proposes that eukaryotic cells evolved by incorporating prokaryotic organisms into their cytoplasm.
This theory is reinforced by the following facts:
Mitochondria and chloroplasts have some genetic information of their own, which would support their original independence.Both the mitochondria and the chloroplast have their own circular double-stranded DNA freely inside them, independent of the nuclear one. They behave like a bacterium, because they synthesize their own proteins, use 70s ribosomes (and not 80s ribosomes like eukaryotes), perform their functions through the membrane and replicate their DNA and perform binary fission to divide.Therefore, we can conclude that Mitochondria and Chloroplasts are much larger than prokaryotic cells is the statement that does not support the endosymbiotic theory.
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one reason Mendel chose pea plants for his experiment.
Answer:
Peas were an ideal choice for Mendel to use because they had easily observable traits there were 7 of which he could manipulate
The main reason why Mendel used a pea plant rather than anything else was because a pea plant had observable traits that could be easily recognized. Seven, in particular, he could manipulate in his experiment. Finally, he would cross-pollinate the peas and study each trait that passed on from one pea to another.
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Tachycardia, decreased or absent breath sounds on the affected side, hyperresonance, and sudden chest pain on the affected side are clinical manifestations of:__________
A) Sarcoidosis
B) Pneumothorax
C) Hypersensitivity pneumonitis
D) adult respiratory distress syndrome
Answer: Option B.
Pneumothorax
Explanation:
Pneumothorax occurs when air buildup between the chest wall and the lungs thereby leading to increased pressure in the chest and it inturn decrease the amount of blood that flow back to the heart because the blood find it difficult to force it's way into the chest and the heart. This is cause by injury to the chest, lung danage, rupture air blisters and mechanical ventilation.
The symptoms include decreased or absent breath sounds on the affected side, hyperresonance, and sudden chest pain on the affected side , racing heart, shock.
When a pneumothorax is large, a needle or tube is used to remove excess air.
What is peristalic movement?
Answer:
The wave like motion of a tube.. generally oesophagus due to which, food goes down
Explanation:
peristalsis have alternative contraction and relaxation movements
Read the text: Trans fat is obtained industrially after certain vegetable oils, under certain conditions, are hydrogenated and transformed into solid fat. This type of fat has been used in the production of some food products, such as stuffed cookies, giving them, for example, a more crunchy consistency. However, it is admitted that the excessive consumption of trans fat contributes to obesity and the development of cardiovascular diseases. a) What group of lipids do oils and fats belong to? b) How can we differentiate oils from fats at room temperatures, around 20 ° C? c) Many seeds, such as soybeans, store relatively large amounts of oil. What is the importance of the presence of oil for the embryo of oil seeds? d) Birds and mammals store fats in adipose tissue, under the skin. What is the advantage of the fatty layer under the skin being especially developed in animals that live in cold climates, such as polar bears? e) Recent studies indicate that fat is associated with cardiovascular disease. Name another substance in the lipid group also commonly associated with these diseases.
Answer and Explanation:
a) What group of lipids do oils and fats belong to? Lipids and fats belong to the triglyceride group. Triglycerides are a mixture of glyceride esters and fatty acids. They are stored in specialized adipose cells, known as adipocytes. Adipocytes give a place to the adipose tissue in the organism.
b) How can we differentiate oils from fats at room temperatures, around 20 ° C? At room temperature, fats can be recognized for being solid, while oil is liquid.
c) Many seeds, such as soybeans, store relatively large amounts of oil. What is the importance of the presence of oil for the embryo of oil seeds? The plant´s embryo needs to nurture while it is developing. The oil in the seeds plays the role of nutritive storage, together with other nutritive substances. These are used by the plant until it is able to photosynthesize.
d) Birds and mammals store fats in adipose tissue, under the skin. What is the advantage of the fatty layer under the skin being especially developed in animals that live in cold climates, such as polar bears? The advantage of the fatty layer under the skin is to keep or maintain the animal´s temperature. It is very common to find a thick fatty layer under the skin of animals that live in very cold environments, such as polar bears or deep divers marine mammals.
e) Recent studies indicate that fat is associated with cardiovascular disease. Name another substance in the lipid group also commonly associated with these diseases. Cholesterol is a fatty substance needed for the good functioning of the organism. It is part of cellular layers and it plays a role in hormone synthesis and biliary salts. Although in excess they might be harmful as they tend to accumulate in the artery´s walls, blocking the passage of blood. This can lead to a heart attack.
Which of the following best describes passive transport?
A. Cellular transport that requires cellular energy in the form of ATP.
B. Cellular transport that does not require cellular energy.
C. Cellular transport in which the cell membrane pinches around a substance in order to bring it into the cell.
D. Cellular transport in which substances move from areas of low concentration to areas of higher concentration.
Answer:
d
Explanation:
passive transport needs no energy W when transporting from high to low and need energy when transporting from low to high
Cellular transport that does not require cellular energy is the example of passive transport. The correct option is B.
What is passive transport?Passive transport is a type of membrane transport in which substances are moved across cell membranes without the use of energy.
Differing from active transport, the one that uses cellular energy to move substances across cell membranes, passive transport utilizes the second law of thermodynamics to move substances across cell membranes.
Passive transport processes play critical roles in homeostasis. They maintain normal conditions within the cell and the organism as a whole by allowing substances to move into and out of the cell.
Active transport is defined as the movement of a solute from one side of the cell membrane with a low electrochemical potential to the opposite side with a higher electrochemical potential.
Thus, the correct option is B.
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What happens when an antigen is introduced into an organism?
A. Myeloma cells are activated.
B. Monoclonal antibodies are produced from plasma cells
C. Polyclonal antibodies are produced from plasma cells.
D. Polyclonal antibodies are produced from somatic cells.
Answer:
B. Monoclonal antibodies are produced from plasma cells
Explanation:
An antigen is a molecule present on the surface of a pathogenic organism and they are capable of generating an immune response by binding to specific antibodies (immunoglobulins) that are secreted by lymphocytes B cells of the immune system. B cells are a type of white blood cell that plays key roles during humoral immunity of the adaptive immune system. When an antigen is introduced into the organism, a specific lineage of B cells proliferate, in a process known as monoclonal expansion.
Egg membranes from three eggs were carefully taken out and labeled as a, b , c. Each of these membranes were filled with 1% solution of sugar. Membrane A was immersed in 0.5% sugar solution, Membrane B was immersed in 1% sugar solution and Membrane c was immersed in 2% sugar solution. Predict the behavior of the three membranes?
Answer:
The correct answer would be -
Membrane A - Hypotonic solution - the movement of water towards inside the cell
Membrane B - Isotonic soltion - there will be no movement of water
Membrane C - Hyertonic solution - the movement of water towards outside of the cell
Explanation:
This experiment deals with tonicity as this solution will affect the tonicity of the egg membrane. In membrane A there are more solutes inside the cell than outside the cell so it is hypotonic solution so the movement of water will be towards inside the cell.
In membrane B the solutes are equal in both sides so there will be no movement as its isotonic condition while in membrane C the solution is in hypertonic situation as the solutes are more outside than inside.
Thus, the behavior of the membranes are-
Membrane A - Hypotonic solution - the movement of water towards inside the cell
Membrane B - Isotonic soltion - there will be no movement of water
Membrane C - Hyertonic solution - the movement of water towards outside of the cell
How are adaptations related to natural selection?
A. Adaptations increase the chances that an individual will live
longer. As a result, the individual's traits will become more
common within the population
B. Adaptations increase the chances that an individual will reproduce
and pass its genes onto the next generation. Such traits then
become more common within a population,
C. Through adaptation, organisms learn to survive in their
environment. The behavior changes their genes, and they are able
to pass the genes to their offspring. These traits then become
more common within the population
D. Through adaptation, organisms learn to survive in their
environment. They teach these behaviors to their offspring, so
these traits become more common within the population.
Answer:
Its actually A
Explanation:
which part of a plant serves as a home for nitrogen-fixing bacteria
Answer:
Mainly the root nodules serve as a home for nitrogen fixation
Explanation: