Why did we have to establish a baseline of hydrogen peroxide and catalase in part d of the enzyme catalase lab?
Answer:
Here is an essay.
Explanation:
https://www.bartleby.com/essay/The-Effect-of-Enzymes-on-Hydrogen-Peroxide-F346D6AY9EQ
What is the function of enzymes in a living system?
Enzymes speed up metabolic reactions necessary for life. Without them, certain vital processes would not take place and the body would be unable to function.
Difference enzymes work better under different conditions. Where in a human body might it be beneficial to have enzymes work in very acidic environments?
In areas, like the stomach, that have a pH of two would benefit by having enzymes that function well in acidic environments. An example of such an enzyme is pepsin.
There is a large amount of catalase found in a human liver. Does the liver break down more hydrogen peroxide in the summer or winter? Explain your answer.
More hydrogen peroxide will be broken down in the summer…show more content…
Potassium permanganate - used to titrate and determine the amount of decomposed hydrogen peroxide.
Sulfuric acid - was used to stop the reaction with catalase and hydrogen peroxide. It denatured the enzyme (catalase) and halted the reaction so the amount of hydrogen peroxide decomposed could be measured.
Before performing part D of the experiment, why was it necessary to establish a baseline?
The baseline is a control and shows the amount of decomposed hydrogen peroxide in the initial sample.
You may have observed the reaction of naturally occurring catalase in tissue from either liver or potato. Design an experiment to determine if the amount of catalase varies from tissue to tissue (e.g. 200 g of the liver compared to 200 g of potato).
Put the 100 g of potato in 1 petri dish and 100 g of the liver in another petri dish. Then put equal amounts of hydrogen peroxide for an equal period of time in both dishes. Drain the dishes and titrate them with potassium permanganate simultaneously. The numbers can now be compared using the steps in the sample calculation above in the lab report. In order to compare perform a potassium permanganate titration on pure hydrogen peroxide.
Of the thousands of enzymes known, there is a family of enzymes called proteases that catalyze a reaction of breaking down proteins. What do you think would happen if you added a protease to your sample of catalase before proceeding with your experiment?
The catalase would be broken
Single celled eukaryotes are considered some of the most complex
cells on earth. Why would scientists believe that single celled
organisms(eukaryotes) are more complex than multi celled
organisms?
Answer:
Eukaryotic cells are more complex than prokaryotes, and the DNA is linear and found within a nucleus. Eukaryotic cells boast their own personal "power plants", called mitochondria.The complex eukaryotic cell ushered in a whole new era for life on Earth, because these cells evolved into multicellular organisms.
Explanation:
Answer:
The ability to maintain different environments inside a single cell allows eukaryotic cells to carry out complex metabolic reactions that prokaryotes cannot. In fact, it's a big part of the reason why eukaryotic cells can grow to be many times larger than prokaryotic ones.
:-
One theory that may explain how eukaryotes became so complex is the endosymbiotic theory. This theory proposes that organelles like mitochondria and chloroplasts were once free-living prokaryotic cells that began to live within a larger host cell.
Select the correct answer.
In the gene TATTCATTGTTA—TGATTT—ATTCG, CATTGTTA encodes for pepsin, a digestive enzyme. The rest of the sequence doesn’t code for any protein. Which sequence contains a mutation that will affect the formation of pepsin?
Group of answer choices
1. TATTCATTCATTA—TGATTT—ATTCG
2. TATTCATTGTTA—TGAT—ATTCG
3. TGCATTCATTGTTA—TGATTT—ATTCG
4. TATTCATTGTTA—TGACTTT—ATTCG
5. TATTCATTGTTA—TGATTT—ATTGGCG
Answer:
can I have the picture?
Explanation:
I don't get it
what process involving cell division results in daughter cells that are not identical to the parent cell?
Answer:
meiosis
Explanation:
Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
How might the variety of traits affect the reproduction of individual
Answer:
Genetic variations that alter gene activity or protein function can introduce different traits in an organism. If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation (a process known as natural selection)
Explanation:
Discuss the effects of deforestation on the following:
(a) Environment
(b) Earth
(c) The next generation
Answer:
The environment
Explanation:
Because deforestation cause erosion , flooding and desertification which affects the environment
what type of growth is this how could you tell
The
layer of the skin is made of dead cells.
Explanation:
The stratum corneum, which is the outermost epidermal layer, consists of dead cells
Please help!!!
What happens when oxygen, carbon dioxide and glucose molecules diffuse across the cell membrane? Explain in your own words
Answer:
Simple diffusion is responsible for the spread of an air freshener through a room, or of a few drops of dye to eventually turn a glass of water a uniform color. Molecules naturally disperse from areas of higher concentration to lower concentration.
As oxygen-rich (and carbon dioxide-poor) blood travels by a cell the oxygen diffuses through the cell membrane to the area of lower concentration inside the cell. It can do this easily because the oxygen molecule (O2) is very small and has no charge or polarity. The oxygen is used up rapidly by mitochondria. This rapid consumption causes oxygen to constantly move into the cell from the blood.
Explanation:
Simple diffusion is responsible for the spread of an air freshener through a room, or of a few drops of dye to eventually turn a glass of water a uniform color. Molecules naturally disperse from areas of higher concentration to lower concentration.
As oxygen-rich (and carbon dioxide-poor) blood travels by a cell the oxygen diffuses through the cell membrane to the area of lower concentration inside the cell. It can do this easily because the oxygen molecule (O2) is very small and has no charge or polarity. The oxygen is used up rapidly by mitochondria. This rapid consumption causes oxygen to constantly move into the cell from the blood.
When the pressure of a gas decreases, which quantity will increase, assuming all other variables are held constant? (1 point)
R
т
n
V
Answer:
V i think
Explanation:
Answer:
The correct answer is V
Explanation:
Because this is the answer
Academic Unit 3 test
When the concentration of molecules on both sides of a membrane is the SAME, the solution
O hypotonic solution
O cytotonic solution
O isotonic solution
hypertonic solution
Explanation:
The prefix iso- means same or equal.
When the concentration of molecules is equal on both sides of the membrane then is an ISOTONIC solution.
I will mark brainliest I’m sorry if I put this in the wrong. Category
The image shows embryos from four different animal species in an early stage of development.
pe
Fish Embryo,
31 Hours
Chick Embryo,
6 Days
Mouse Embryo,
11 Days
Human Embryo
41 Days
Which conclusion can be drawn from these data?
Choose the correct answer
#1Fish develop more slowly than chickens, mice, and humans.
#2Fish embryos cannot be distinguished from chicken embryos.
#3Mice and humans have no similarities during development
#4Humans are more closely related to mice than they are to chickens or fish
Answer:
#4 Humans are more closely related to mice than they are to chickens or fish.
Explanation:
If you compare the human embryo with the mouse embryo, you can tell they look very similiar, like in the way they curl up and in their eye placement/size. With the other two- fish and chickens- they look extremely different in comparison to the human embryo. The comparisons that i used before (eye placement/size and formation) I'll use as an example. They look nothing similiar to each other, therefore the answer is #4.
Hope this helps :)
A process in which a large nucleus splits into two or more parts is called:
Answer:
Nuculear Fission.
A process in which a large nucleus splits into two or more parts is called nuclear fission.
What is nuclear fision?The term nuclear fission refers to the breaking apart of a large nucleus to give daughter nuclei with the accompanying release of energy. We have to note that usually the nucleus is bombarded by a small particle.
Hence, a process in which a large nucleus splits into two or more parts is called nuclear fission.
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A covalent bond forms due to _____.
a. Sharing of electrons
b. Transfer of electrons
c. Losing or gaining electrons
d. All of the above
which description of skeletal cartilage is incorrect?
The incorrect description is that Costal cartilages reinforce airways and support the external nose
The options were omitted but the complete question is :
Which description of skeletal cartilage is incorrect
Fibrocartilages are able to withstand both pressure and stretch.
Costal cartilages reinforce airways and support the external nose.
Elastic cartilages are able to tolerate repeated bending.
Articular cartilages cover the ends of most bones at moveable joints.
Costal cartilages are said to be at the anterior extreme of a rib cage. Their function is to give the ribcage a flexible structure and connect the ends of the ribs to the sternum. Respiratory cartilages are present in the Trachea and are responsible for flexible inhalation and exhalation thereby reinforcing airways and providing support to the structure of the nose.
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Mannitol salt agar (MSA) only allows the growth of halophiles. Among the halophiles, mannitol fermenters release acid that turns the pH indicator yellow; mannitol nonfermenters leave the medium red. Onto MSA you inoculate a halophilic mannitol fermenter, a nonhalophilic mannitol fermenter, and a halophilic mannitol nonfermenter. Thus, the medium is acting as a __________ medium.
Mannitol salt agar can act as both a selective and differentiating medium. A selective medium is one in which inhibits the growth of a particular organism, and allows others to thrive in said conditions. In this case, MSA favors halophilic organisms. MSA is also a differentiating medium because of the mannitol content. Mannitol is a sugar and mannitol fermenters, like s. saprophyticus, use mannitol and release acid as a byproduct. The pH indicator within the agar changes from red to yellow.
A student is looking through a microscope at some cells of an onion root tip. Many of these cells are undergoing division since the root tip grows quickly and requires more cells. Which cell is going from metaphase into anaphase? W X Y Z
GIVING BRAINIEST TO FIRST PERSON TO ANSWER IT CORRECTLY!!!
Answer:
A student is looking through a microscope at some cells of an onion root tip. Many of these cells are undergoing division since the root tip grows quickly and requires more cells. Which cell is going from metaphase into anaphase? W X Y Z
It's y
The cell Y is transitioning from metaphase to anaphase.
What is metaphase?
The chromosomes are at their second-most compacted and coiled state during the mitotic stage of the eukaryotic cell cycle, known as metaphase. These chromosomes, which contain genetic material, align in the cell's equator before being divided into the two daughter cells.
A phase of cell division known as "metaphase" (mitosis or meiosis). Individual chromosomes are typically dispersed throughout the cell nucleus. During metaphase, the cell's nucleus disintegrates and the chromosomes condense and migrate toward one another, aligning in the middle of the dividing cell.
The duplicate genetic material existing in a parent cell's nucleus is divided into two identical daughter cells during the third stage of mitosis, known as metaphase.
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If you look straight at an object when it is nearly
dark, you may find it difficult to see it. It is easier
to see if you look just to one side of it. Explain
why this is
Answer:
When you don't look directly at something, its focused on parts of the retina mostly populated by rod photoreceptors.
Explanation:
rod preceptors are more sensitive to dim light than the cones are, which are clustered at the part of retina you use to look at something directly.
a process common to all living organisms, whether aerobic or anaerobic, is
Answer:
The process of respiration is similar in all organisms, whether plants or animals – carbon dioxide is given out and oxygen is used up, and a lot of energy is produced. In plants, specific organs for breathing are absent. The exchange of gases, however, occurs by the process of diffusion.
Explanation:
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A process common to all living organisms, whether aerobic or anaerobic, is glycolysis as part of the metabolism of all living organisms.
Glycolysis is the universally distributed metabolic pathway in all organisms and cells, by means of which a glucose molecule is degraded to two pyruvate molecules, in addition to producing energy in the form of ATP and NADH.
Specifically, ATP is the only high-energy phosphate that is formed primarily from the energy gain of the cell through oxidative processes (aerobic) or glycolysis (aerobic or anaerobic).
Glycolytic enzymes are located in the cytoplasm, near the contractile filaments, therefore, the ATP produced by the glycolytic pathway is formed near the place where it is used.
Phases:
Preparatory: Four reactions: two are phosphorylation and consume 2 ATP per glucose molecule. The breakdown of hexose produces 2 trioses, which end in 2 molecules of glyceraldehyde-3-P. .Oxidation of glyceraldehyde-3-phosphate (x 2) to pyruvate (x 2) and coupled formation of ATP in 2 of the reactions, in total 4 ATP and 2 NADH are formed.In aerobics glycolysis consists of extracting energy from organic molecules from the oxidation of carbon by oxygen.
In anaerobic glycolysis the element used to achieve oxidation is not oxygen but sulfate or nitrate.
Therefore, we can conclude that a process common to all living organisms, whether aerobic or anaerobic, is glycolysis as part of the metabolism of all living organisms.
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What we perceive about persons depends,in part, on their mannerisms and gestures.
True
Or
False
explain what happen during the process of birth
referred to the following terms in your exlanation
gestation period
role of oxytocin
after birth
caesarean
colostrum
Answer: ok so the prosses of birth is kinda a science question and will be a hard answer. so it starts how it does and the sperm meets the egg and the baby starts to grow from there
Explanation:
How can you tell the algae beads are preforming photosynthesis
Answer:
preforming the experiment yourself
Explanation:
jdifn
Why do human can stand straight?
Answer:
[tex]because \: of \: the \: prescnce \: of \: bones \\ thank \: you[/tex]
Explanation:
The pelvis provides support for the spine and some body organs like legs containing lockable knee joints providing a column of support, bearing the weight of the head, neck and trunk, allowing us to maintain an upright position.
many promoters of a hypothetical conserved gene have mostly adenines and thymines. what is the most likely reason for this high proportion of adenines and thymines?
19
!!
Which of the following best describes the function of the
ribosomes in eukaryotic cells? (1 point)
decodes the sequence of bases on the mRNA
and then creates specific proteins
makes lipids and steroids that will be used in the
production of membranes and hormones
modifies proteins that require specific
attachments of sugars or lipids and packages
proteins for export
energy-producing structure of the cell and
location of cellular respiration
it
Answer:
Decodes the sequence of bases on the mRNA and then creates specifc proteins
Explanation:
Decodes the sequence of bases on the mRNA and then creates specific proteins. Therefore, option (A) is correct.
Ribosomes in eukaryotic cells are responsible for protein synthesis, a crucial process in which they decode the genetic information carried by mRNA molecules. Ribosomes read the mRNA sequence and use it as a template to assemble amino acids in the correct order, forming a polypeptide chain that folds into a functional protein. This process, called translation, occurs in two main subunits of the ribosome, which come together on the mRNA strand.
Ribosomes ensure accurate protein synthesis by matching each mRNA codon with the appropriate amino acid, guided by transfer RNA (tRNA) molecules. Ultimately, ribosomes play a central role in translating genetic information from DNA to create a wide variety of proteins that perform diverse functions within the cell and organism, making them essential components of cellular machinery. Therefore, option (A) is correct.
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which enzyme is responsible for proofreading during replication?
Answer:
DNA polymerase
Explanation:
1) What percentage of oxygen and carbondioxide inhaled and Exhaled Air ? ..
Answer:
21% of oxygen and 0.04% of carbon dioxide inhaled; 16.4% of oxygen and 4.4% of carbon dioxide, exhaled
Explanation:
The amount of inhaled air contains 21% of oxygen and 0.04% of carbon dioxide, while the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide.
how to prevent yeast infection while on antibiotics?
Answer: some things you can do
Explanation: talk to your doctor, use yogurt, replenish your good bacteria, and use an over-the-counter antifungal.
why is the smooth endoplasmic reticulum unable to synthesize proteins?
Answer:
Why is the smooth endoplasmic reticulum unable to synthesize proteins? No ribosomes are attached to its surface. The liver is involved in detoxification of many poisons and drugs. ... Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules
Explanation:
Question 3
1 pts
In populations with a
density, individuals are crowded together in their habitat. In
populations with a
density, individuals are spaced far apart.
High-density means full and low density is more empty