Answer: It makes energy for the cell. In addition to producing energy, mitochondria store calcium for cell signaling, generate heat, and are involved in cell growth and death.
why is soil a renewable source
Answer:
bc, when things decompose, they make soil!:) I think...
Explanation:
what are 3 modifications to pyruvate in the intermediate phase
Answer:
Simplified diagram of pyruvate oxidation. Pyruvate—three carbons—is converted to acetyl CoA, a two-carbon molecule attached to coenzyme A. A molecule of coenzyme A is a necessary reactant for this reaction, which releases a molecule of carbon dioxide and reduces a NAD+ to NADH.
Simplified diagram of pyruvate oxidation. Pyruvate—three carbons—is converted to acetyl CoA, a two-carbon molecule attached to coenzyme A. A molecule of coenzyme A is a necessary reactant for this reaction, which releases a molecule of carbon dioxide and reduces a NAD+ to NADH.
In eukaryotes, this step takes place in the matrix, the innermost compartment of mitochondria. In prokaryotes, it happens in the cytoplasm. Overall, pyruvate oxidation converts pyruvate—a three-carbon molecule—into acetyl two-carbon molecule attached to Coenzyme A—producing an t, N, A, D, H, end text and releasing one carbon dioxide molecule in the process. Acetyl C, o, A, end text acts as fuel for the citric acid cycle in the next stage of cellular respiration.
Pyruvate oxidation steps
Pyruvate is produced by glycolysis in the cytoplasm, but pyruvate oxidation takes place in the mitochondrial matrix (in eukaryotes). So, before the chemical reactions can begin, pyruvate must enter the mitochondrion, crossing its inner membrane and arriving at the matrix.
In the matrix, pyruvate is modified in a series of steps:
More detailed diagram of the mechanism of pyruvate oxidation.
1. A carboxyl group is removed from pyruvate and released as carbon dioxide.
2. The two-carbon molecule from the first step is oxidized, and NAD+ accepts the electrons to form NADH.
3. The oxidized two-carbon molecule, an acetyl group, is attached to Coenzyme A to form acetyl CoA.
More detailed diagram of the mechanism of pyruvate oxidation.
A carboxyl group is removed from pyruvate and released as carbon dioxide.
The two-carbon molecule from the first step is oxidized, and NAD+ accepts the electrons to form NADH.
The oxidized two-carbon molecule, an acetyl group, is attached to Coenzyme A to form acetyl CoA.
Image credit: "Oxidation of pyruvate and the citric acid cycle: Figure 1" by OpenStax College, Biology, CC BY 3.0
Step 1. A carboxyl group is snipped off of pyruvate and released as a molecule of carbon dioxide, leaving behind a two-carbon molecule.
Step 2. The two-carbon molecule from step 1 is oxidized, and the electrons lost in the oxidation are picked up 2 \text{NADH}NADHstart text, N, A, D, H, end text are generated from \text{NAD}^+NAD
Step 3. The oxidized two-carbon molecule—an acetyl group, highlighted in green—is attached to Coenzyme A (\text{CoA}CoAstart text, C, o, A, end text), an organic molecule derived from vitamin B5, to form acetyl \text{CoA}CoAstart text, C, o, A, end text. Acetyl \text{CoA}CoAstart text, C, o, A, end text is sometimes called a carrier molecule, and its job here is to carry the acetyl group to the citric acid cycle.
The steps above are carried out by a large enzyme complex called the pyruvate dehydrogenase complex, which consists of three interconnected enzymes and includes over 60 subunits. At a couple of stages, the reaction intermediates actually form covalent bonds to the enzyme complex—or, more specifically, to its cofactors. The pyruvate dehydrogenase complex is an important target for regulation, as it controls the amount of acetyl \text{CoA}CoAstart text, C, o, A, end text fed into the citric acid cycle^{1,2,3}
1,2,3
start superscript, 1, comma, 2, comma, 3, end superscript.
If we consider the two pyruvates that enter from glycolysis (for each glucose molecule), we can summarize pyruvate oxidation as follows:
Two molecules of pyruvate are converted into two molecules of acetyl \text{CoA}CoAstart text, C, o, A, end text.
Two carbons are released as carbon dioxide—out of the six originally present in glucose.
2 \text{NADH}NADHstart text, N, A, D, H, end text are generated from \text{NAD}^+NAD
+
start text, N, A, D, end text, start superscript, plus, end superscript.
Why make acetyl \text{CoA}CoAstart text, C, o, A, end text? Acetyl \text{CoA}CoAstart text, C, o, A, end text serves as fuel for the citric acid cycle in the next stage of cellular respiration. The addition of \text{CoA}CoAstart text, C, o, A, end text helps activate the acetyl group, preparing it to undergo the necessary reactions to enter the citric acid cycle.
Explanation:
In the chemical equation CH4 + 02 → CO2 + H2O, what are considered the reactants?
CH4, CO2
02, H20
CO2, H2O
CH4, 02
Which of the following mutations is LEAST likely to result in harmful changes to cells?
Which of the following is the best description of the process shown in the image below?
The process in the image is ( C ) : Water, carbon dioxide and light are inputs while oxygen and glucose are outputs
The process represented in the diagram is photosynthesis because Photosynthesis is the process whereby green plants makes use of water and Carbon dioxide from the atmosphere in the presence of light to produce its food and also producing oxygen as its by product in the process
Photosynthesis :
H₂0 + CO₂ + light energy -----> C₆H₁₂O₆ + O₂
Hence we can conclude that the process in the image is Water, carbon dioxide and light are inputs while oxygen and glucose are outputs
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Which event is caused by gravity with water
I just bombed this test and i have 1 retake left. please help!!
Answer:
a carboxyl group at one end is correct.
Explanation:
it says your answer is 1/1 pts lol
dang i hate taking exams on canvas, but yeah your answer is corrrect for this one
The following transactions occurred during 2021 for the Beehive Honey Corporation: Feb. 1 Borrowed $16,000 from a bank and signed a note. Principal and interest at 9% will be paid on January 31, 2022. Apr. 1 Paid $4,400 to an insurance company for a two-year fire insurance policy. July 17 Purchased supplies costing $3,200 on account. The company records supplies purchased in an asset account. At the year-end on December 31, 2021, supplies costing $1,450 remained on hand. Nov. 1 A customer borrowed $7,200 and signed a note requiring the customer to pay principal and 7% interest on April 30, 2022.
Required:
1. Record each transaction in general journal form.
2. Prepare any necessary adjusting entries at the year-end on December 31, 2021. No adjusting entries were recorded during the year for any item.
Answer: See explanation
Explanation:
Journal entry simply has to do with the recording of transactions in an accounting book which signifies the debit and credit balances of the company.
For the adjusting entries:
On Dec 31:
Interest expense:
= 16000 × 9% × 11/12
= 1320
Prepaid insurance
= 4400/24 × 9
= 1650
Check the attached file for further explanation.
What is heliozoa in the simplest definition? ( Science)
Answer:
A heliozoa is a phylum of single-celled aquatic animals that are related to the radiolarians
Explanation:
Answer:
heliozoa: microbial eukaryotes (protists) with stiff arms (axopodia) radiating from their spherical bodies, which are responsible for their common name.
pls help me !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Up and down are balanced cuz they are the same. However, left and right is unbalanced
Explanation:
I you notice up and down are equal numbers, so there's no effect, BUT, there are 0.5 more points to the left then right (1.0), so its going to the right.
What are some factors that affect climate ?
A. atmospheric pressure and wind
B. air pressure and temperature
C. altitude , latitude , and geography
Answer:
C!
Explanation:
Definition: A polygon with 4 sides is called a ____.
quadrilateral
Hope it helps
Answer: Quadrilaterals
Explanation:
name three factors that affect the rate at which an enzyme can catalize a reaction
Answer:
enzyme concentration, substrate concentration, temperature and pH.
Explanation:
24
If you wanted to measure from here to Salt Lake City, Utah which unit
would be best to use? *
meters
kilometers
centimeters
millimeters
Answer: b: kilometers
Explanation: meters are some what small. centimeters are small. millimeters are small. the biggest measurement here are kilometers
Which statement describes the relationship between science and society?
whether microorganisms are useful or harmful explain
Explanation:
micro organisms , though a large number can cause diseases in plants and animals , including humans . But all microbes arent harmful. a number of microbes are very useful, particularly in industries , agriculture and medicine. In fact, their beneficial effects are far more than the harm they cause.May 20, 2016
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Does a toucan eat a chameleon?
Answer:
yes
Explanation:
/yes they do bruhhhhh
what will happen to energy levels in an ecosystem if the water cycle is disrupted
Answer:
Okay if the water cycle is disrupted ...the energy levels in an ecosystem will decrease
Explanation:
This is mainly because water is mainly used in energy recyclability and so that water is converted to energy through the ecosystem and the presence of water makes the energy to be there in adequate and so if the water cycle is disrupted the energy will decrease
In a chemical reaction, atoms do which of the following?
A
Remain bound to the same atoms
B
Split in half
c
Combine with new atoms
D
Increase in size
How are enzymes able to speed up reactions?
there r no choices
Answer:
Enzymes are able to speed up reactions by lowering the activation energy needed for the reaction to start.
Answer:
Enzymes are biological catalysts and are able to speed up reactions as they involve a Lower activation energy needed for the reaction to occur.
Why do fats have higher caloric value than other organic molecules?
Fats have higher calorific value. Fats have high energy than other molecules.
What is high calorific value?Calorific value, which is measured by measuring the heat generated by the full combustion of a particular quantity of a substance, is nothing more than the energy present in a fuel or food. Currently, this is typically given as joules per kilogram.
A device called a calorimeter is used to calculate calorific value. In order to determine how much heat was generated during combustion, a predetermined amount of the object being investigated is burned under carefully controlled conditions.
Therefore, Fats have higher calorific value. Fats have high energy than other molecules.
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Fewer offspring is a disadvantage of which form of reproduction?
a. mitosis
b. asexual reproduction
c. binary fission
d. sexual reproduction
Answer:
Binary Fission
Explanation:
Answer:
d. sexual reproduction
Explanation:
took the test on edge
Which of the following list the thing plants needs for photosynthesis
Answer:
they need carbon dioxide,water and light
Polypeptides are the polymer of
Answer:
Synthetic polypeptides consist of a repeating sequence of certain amino acids and their primary structures are not as complicated as those in proteins. The polypeptides are very important polymers in both polymer and protein science.
Your colleague asks you to verify her findings about a new polymer intended for use as a vascular graft. It must be reasonably elastic; otherwise, the blood will be constricted and increase its flowrate downstream with each pulse of the heart. She found that the material was sufficiently elastic for use inside the body. After running a tension test, you find that it is too brittle for use. Your colleague reviews your protocol and declares that you have either graduated from Duke or checked your eyelids for light leaks during Dr. Brudno's BME 203 class, because it definitely is adequate. Describe two mistakes you may have made. Put a (1) and (2) before each of your reasons.
Answer:
1.Vascular tube is used for vascular surgery and is very small in size with very small diameter and thickness,thus a little change in environment can also affect there result.
2.When testing for tension in the polymer it is very important to consider the strain rate as the increase in strain can cause the material to break.Therefore not only tension test but also strain test is required.
Explanation:
Why do you think it might have a thick wax coating?
Answer:
For slow burning
Explanation:
Im having lots of troubles understanding this question. if anyone could help me with the answer but most importantly how to identify the monomer in this picture that would be great you guys.
Just how different are these two populations of juncos from one another ?
Answer:
quizlet.com
/316906990/
juncos-physical-traits
-9th-grade-
lesson-16-l
esson-f
lash
-cards
/
Explanation:
take out the spaces
During exercise, blood CO2 levels increase as a result of muscle cell activity. This makes blood more acidic, which disrupts pH homeostasis. Drag the following events in the regulation of gas exchange into the proper order.
I will put the events in order and further explain what happens to gaseous exchange during exercise.
During exercise,
- Blood CO2 increases,
- Blood becomes more acidic-PH decreases below the set point,
- Brain stem detects PH change,
- Brain cell signals muscles in the diaphragm and rib cage,
- Breathing level increases,
- Amount of CO2 exhaled increases,
- Blood PH returns to the set point.
During exercise,the cells of the muscles respite more than when the body is at rest.Heart rate increases abd,more oxygen is used or required and more CO2 is exhaled.
The rate and depth of breathing increases and this is in a bid for the body to compensate by making sore that more oxygen is absorbed into the blood as well as remove more carbondioxide
When CO2 combines with water, carbonic acid is formed,this makes the blood to become acidic.
Therefore,when CO2 is present in the blood,it decreases the blood PH and an excess of it (PH less than 7.35) will result in Acidosis.
use the picture of the goat by the water to determine if the following statements are observations, or ir
the statements are inferences. Place an "In" in the blank for inference and an "Obs" in the blank for
observation
1. The kid is in the water.
2. The weather is cold.
3. The tree branch is broken.
4. If the kid crawled out of the water, the goat would push him/her.
5. The kid fell off the branch.
6. The goat is standing by the pond.
7. The branch will fall on the kid's head.
8. The kid fell off the rocks.