Answer:
Under anaerobic conditions (a lack of oxygen), the conversion of pyruvate to acetyl CoA stops. In the absence of oxygen, electron transport stops. NADH is no longer converted to NAD+, which is needed for the first three stages of cellular respiration.
Explanation:
lmk if I did anything wrong
Answer:
The effects of anoxia on water and solute transport across excised roots of young maize plants (Zea mays L. cv. Tanker) grown hydroponically have been studied. With the aid of the root pressure probe, root pressure (Pr), root hydraulic conductivity (Lpr), and root permeability (Psr), and reflection (σ sr) coefficients were measured using potassium nitrate (a typical nutrient salt) and sodium nitrate (an atypical nutrient salt) as solutes. During a period of 10–15 h, anaerobic treatment (0.0–0.2 g O2·m-3 in root medium) caused a decrease of root pressure by 0.01–0.28 MPa (by 10–80% of original root pressure) after a short transient increase. For a time period of 5 h, the decrease in the stationary root pressure was not reversible. Under anaerobic conditions, roots still behaved like osmometers and were not leaky. The root hydraulic conductivity measured in osmotic experiments (osmotic solute: NaNO3) was smaller by one to two orders of magnitude than that measured in the presence of hydrostatic gradients. Both the osmotic and hydrostatic hydraulic conductivity decreased during anaerobic treatment by 28 and 44%, respectively, at a constant reflection coefficient of the solutes (σ sr=0.3−1.0). As with root pressure, changes in root permeability to water and solutes were not reversible within 5 h. Under aerobic conditions and at low external concentrations (31–59 mOsmol·kg-1), osmotic response curves were monophasic for KNO3, i.e. there was no passive uptake of solutes. Response curves became biphasic at higher concentrations (100–150 mOsmol·kg-1)- For NaNO3, response curves were biphasic at all concentrations. Presumably, this pattern was a consequence of the fact that potassium had already accumulated in the xylem. During anoxia, accumulation of potassium in the xylem was reduced, and biphasic responses were also obtained at lower potassium concentrations applied to the medium. The results are discussed in terms of a pump/leak model of the root in which anoxia affects both the active ion pumping and the permeability of the root to nutrient salts (leakage). The effects of anaerobiosis on the passive transport properties of the root (Lpr, Psr, σ sr) are in line with the recently proposed ‘composite transport model of the root’.
Hello please help will give brainliest to the correct answer!
Answer:
B, the cell membrane
Explanation:
The cell membrane dictates what enters and exits the cell. It keeps the important stuff (such as organelles) inside the cell, allows nutrients to enter the cell, and keeps unwanted ¨things¨ from entering. The tea bag does roughly the same thing.
It keeps the important contents inside (in this case the tea leaves), allows water to come inside, and keeps whatever is in the water outside of the teabag. Obviously the cell membrane is much more complicated than a tea bag, but the tea bag works as a nice analogy.
fast growing trees can be grown in plantations and then burned at power plants in order to produce biomass energy what are three possible effects of using land for biomass plantations
Answer:
Explanation:
1.) this could affect the ozoone layer due to the burning
2.) the land will be sucked of certain nutrients due to the fact that ll types of plants need specific things from the soil and only planting one type of plant will drain the oil of that specific nutrients
3.) if the land is not used to having fast growing trees it will disturb other plants and animals that live in the habbitat
hope this help please rate brainlest if it helped
Hello the part labeled X is called the Mitochondria just so you know. Please help!
Answer:
B)to provide the cell with energy for their activities
Explanation:
HOPE THIS HELPS!!
A describes the nucleus
C describes the lysosomes
D describes chlorophyll
When a raw, shell-ess egg was placed in sugar solution, the egg shrank., The egg was brought back to its original size by placing it in
water. Which process does the experiment demonstrate?
Answer:
A: osmosis. The egg first expanded because it was placed in a hypertonic solution (sugar water), causing the water to exit the egg to balance the higher concentration of solute outside of the egg. Placing it in fresh water creates a hypotonic environment, thereby causing water to rush back in.
Explanation:
1. What is the purpose of the Digestive System? Select ALL that
apply
A. Digest or eliminate food
B. Absorb Nutrients
C. Help control hunger
D. Eliminate solid food waste
Answer:
A, B, and D!
I hope this helps, and have a great rest of your day! :)
1 in
New Yorkers have diabetes.
Directions: The diagram below shows how El Niño occurs when Pacific trade winds that are blowing east to west weaken. Use the diagram and your knowledge of science to answer any questions that follow.
The weaker trade winds cause
A
water off the coast of North America to become cooler.
B
water off the coast of Australia to become warmer.
C
water off the coast of Indonesia to become cooler.
D
water off the coast of South America to become warmer.
Answer:D
Explanation:
The diagram below shows how El Niño occurs when Pacific trade winds that are blowing east to west weaken water off the coast of South America to become warmer.
What is Pacific trade?The focus of American policy was the Trans-Pacific Partnership (TPP). a geopolitical shift by President Barack Obama toward Asia.
The TPP was slated to become the greatest free trade agreement in history, encompassing 40% of the world economy, but President Donald Trump withdrew the United States in 2017.
According to those who supported it, a deal of this nature would have increased American investment and trade abroad, boosted economic growth, reduced consumer prices, and produced new employment, all while furthering American strategic objectives in the Asia-Pacific area.
Therefore, The diagram below shows how El Niño occurs when Pacific trade winds that are blowing east to west weaken water off the coast of South America to become warmer.
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Guys please help me I really need to pass this test :( I will give branliest !!
Answer:
D. ability to sense and respond to change
its probably wrong but youll always be right if you stan bts :))) just kpop in general lol
Answer:
B
Explanation:
Not all living things take in oxygen, while the 5 characteristics of life include the ability to grow/develop, use energy for daily functions, and respond to changes in their environment. Therefore, B is the only option that is not a characteristic of all organisms. Hope this helps!
What structure is found in viruses but not in cells?
Answer:F
Explanation:
One structure that is found in viruses but not in cells is the viral capsid.
What is a virus?Viruses are infectious agents that are much smaller and simpler in structure than cells. While cells are complex structures that have many components, including a cell membrane, cytosol, and organelles such as the nucleus and mitochondria, viruses have a much simpler structure.
One structure that is found in viruses but not in cells is the viral capsid. The capsid is a protein shell that surrounds and protects the viral genome (DNA or RNA). The capsid is made up of proteins called capsomeres, which are arranged in a specific pattern to form a shell around the viral genome. The capsid helps the virus to infect host cells and replicate its genome.
Viruses may also have a viral envelope, which is a thin layer of lipids that surrounds the capsid. The envelope helps the virus to enter host cells and may also contain proteins that allow the virus to evade the host's immune system.
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A population of zebras experienced ten births, six deaths to predation, three deaths to disease, three individuals joining the population, and zero individuals leaving. What is happening to the population growth?
It is increasing.
It is decreasing.
It is staying the same.
It reaches carrying capacity.
Answer: It is increasing.
Explanation: A population of zebras experienced ten births, six deaths to predation, three deaths to disease, three individuals joining the population, and zero individuals leaving.
According to the given condition, it can be stated that the zebra population is increasing with time. The correct option is A.
What is happening to the population growth of zebra?The population growth rate is the pace at which a population expands or contracts over time. Rates of birth, mortality, immigration, and emigration all affect population increase.
To determine the population growth, we will consider the factors affecting the number of zebras in the population: 1. Births: +10 zebras 2. Deaths due to predation: -6 zebras 3. Deaths due to disease: -3 zebras 4. Individuals joining: +3 zebras 5.
Individuals leaving: 0 zebras Now, let's calculate the net change in the population: Net change = Births - (Deaths due to predation + Deaths due to disease) + Individuals joining - Individuals leaving Net change = 10 - (6 + 3) + 3 - 0 Net change = 10 - 9 + 3 Net change = 4
Since, the net change is positive (+4), the population of zebras is increasing.
Therefore, the correct option is A.
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If a tree grows 1/4 a foot in 1/12 of a year. How much will it grow in 3 years?
Answer:
3 feet
Explanation:
The tree grows 1/4 foot each month (1/12 of a year)
So the tree grows (1/4)(12) feet in a year. That is 3 feet.
In math:
(1/4) / (1/12)
(1/4) · 12 to divide by a fraction, invert and multiply
3
What is blue and white inside?
Explanation:
light blue combining color
What are nine sources for stem cells
Answer:
bone marrow
umbilical cord blood
adipose tissue
allografts
amniotic fluid
Explanation:
Does the shape of an enzyme allow it to do its job
Which type of organism can obtain energy
directly from any of the other organisms in an
ecosystem?
(1) herbivore
(3) producer
(2) decomposer (4) carnivore
Answer:
2 decomposer or 3 producer
Explanation:i kinda forgot lol
Option 2. Decomposers are the organisms that can obtain energy from any other organisms in an ecosystem as they breakdowns all type of dead organisms.
In an ecosystem, there are various kinds of organisms on the basis of their feeding behavior such as:
Producers: make their food and energy on their own.Herbivore - a primary consumer that depends upon producers for its energy and food. Carnivore - a secondary consumer that depends on herbivores or other consumers.Decomposers: organisms that get their energy and nutrition from any organism are dead or organic matters such as animal and plant wastes.Thus, the correct answer is - 2) decomposers.
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Identify the charges of the different parts of an atom.
Answer:
The parts of an atom are protons, electrons, and neutrons. A proton is positively charged and is located in the center or nucleus of the atom. Electrons are negatively charged and are located in rings or orbits spinning around the nucleus.
Explanation:
emilythompson35464
hope this helps srry if it doesn't tho
How do the potential energy and the kinetic energy change when the skateboarder is at the top or the bottom of the hill? Why do you think this change occurs?
Answer:
Potential at the top. Kinetic when going down the hill.
Explanation:
Its basically mechanical energy! While at the top you have the potential to go down and race down using kinetic energy.
Answer:
The potential energy (P.E) and the kinetic energy (K.E) are two types of distinct energy that is commonly observed in our day-today's life.
Usually, K.E is defined as a type of energy that is produced when an object is in motion. Where, as P.E is a type of energy that is stored in an object when that object is placed at a certain height.
In the given condition, when the skateboarder is at the top of the hill, then at that position, it is comprised of maximum P.E. As the he slowly comes down the hill, then the P.E gradually decreases, and the K.E gradually increases. This shows the P.E is slowly changing into the K.E. And as it comes down, the K.E increases, and eventually when he stops, then both the K.E and P.E becomes zero.
This changes occurs because energy can never be created nor destroyed, and it changes from one form to another.
Explanation:
During this phase of cell division chromosomes settle at opposite ends and
nuclei begin to reform.
An atom has 6 protons and 8 neutrons. Whats its atomic mass
Plant and animals cells have a lot in common. Compare and contrast the two cells. Select the features that you find in BOTH types of cells. A). Membrane,nucleus,cytoplasm. B). Membrane,chloroplast,nucleus. C). Cell wall, cell membrane, nucleus. D). Cell membrane and cell wall, chloroplast
Answer:
Membrane, nucleus, cytoplasm are found in both plants and animal cells because they are Eukaryotes.
What I wonder about movement of the Earth, sun, & moon?
Answer:
moon rotates and revolves around earth
earth rotates and revolves around sun
this rotation and revolution takes place in an oval shaped orbit..
ICY WATER SETUP:
What was the average for SKIN temperature change?
Question 1 options:
18 degrees F
.95 degrees F
20 degrees F
1.3 degrees F
Answer:
The answer is 20 degrees then the temperature will start going to other organs
The the average for SKIN temperature change is 20 degrees then the temperature will start going to other organs.
what is temperature ?Temperature can be defined as the hotness or coldness sensation of the body, determining the kinetic energy of particles in an object, the temperature increases as the movement of the particle go in a Faster rate.
The temperature has the role in every area and in all scientific disciplines, it is measured with the instrument like thermometer or a calorimeter, it determines the internal energy in a given system.
For the determination of temperature a sensor is used called RTD or Resistance Temperature Detector or a thermocouple which collects the temperature data from a particular source and converts these data into an understandable data.
Temperature sensors can be used in food processing units and medical devices, in thermometer, some of the temperature sensor used for non-scientific purposes, used in Thermistors, Semiconductors, Thermocouples etc.
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the approximate length of the paramecium is
Answer:
325 micrometers. Hope this helped :)
Explanation:
If I'm wrong I apologize.
Essential nutrients move through a cell membrane by both passive transport and
active transport. Which of the following correctly describes the transport of
materials across a cell membrane?
A. Active transport requires chemical energy to move nutrients from areas of
low concentration to areas of high concentration.
B. Passive transport requires chemical energy to move nutrients from areas of
low concentration to areas of high concentration.
C. Active transport moves nutrients from areas of high concentration to areas
of low concentration without the use of chemical energy.
D. Passive transport moves nutrients from areas of low concentration to areas
of high concentration without the use of chemical energy.
Answer:
Your correct answer would be A
Explanation:
Briefly explain what properties of the atoms in water (H2O) give water the ability to form hydrogen bonds. Your answer should include the words: electronegativity, hydrogen, oxygen, electrons, protons.
Answer:
Water molecules are polar, so they outline hydrogen bonds. This gives water great properties, such as a for the most part high bubbling or boiling point, tall specific warm, cohesion, grasp, and thickness. Hydrogen has an electronegativity of 2.0, though oxygen has an electronegativity of 3.5. The refinement in electronegativities is 1.5, which infers that water can be a polar covalent molecule. In water, an electron from each of the hydrogen particles is drawn towards the oxygen particle. Protons, as unequivocally charged hydrogen particles, move outstandingly rapidly in water from one water molecule to the taking after, which is why the conductivity of water is modestly tall.
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Please help!!!!!!!!
Answer:
vnvhgh
Explanation:
nbmb. bbhf
Does the process of building proteins release or absorb energy?
Answer:
release
Explanation:
What will happen to a cell that is placed in a hypotonic saline solution?
Answer:
In a hypotonic solution, the solute concentration is lower than inside the cell. If the water continues to move into the cell, it can stretch the cell membrane to the point the cell bursts (lyses) and dies.
Explanation:
What causes mass wasting?
Answer: What causes mass wasting is rain, or even earthquakes. These events can occur rapidly and move as a flow.
Explanation:
Answer:b
Explanation:
how religion influenced the causes and outcomes of the Salem Witch Trials.
Answer: They thought the cause was the devil speaking to these people and making them his "witches." The outcome was that people were afraid that the witches would do something to them so they put them on trial and hung them as well.
Hope this helps! :)