1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
telo118 [61]
4 years ago
13

Why do all Krebs cycle reactions occur twice for each molecule of glucose that undergoes respiration?

Biology
2 answers:
lesya692 [45]4 years ago
5 0

Answer:

The Krebs cycle reaction occurs twice because glucose produces two molecules of Pyruvate and then two acetyl CoA.

Explanation:

The citric acid cycle goes around twice for each molecule of glucose that enters cellular respiration because there are two pyruvates from the single glucose molecule and thus, two acetyl CoA is produced per glucose which is the starting molecule in the Krebs cycle.

horsena [70]4 years ago
4 0

Answer: This is because 2 pyruvate molecules were produced in Glycolysis,and each must be metabolize to extract one ATP molecule each contained.

In addition to produced required number of reduced Co-enzymes for Electron Transport Chain (ETC) reactions to take place for ATP production

It must also be twice/glucose molecule to generate required volume of oxygen for decaboxylation,because the oxygen in the reaction came from.from . redox and not from the atmosphere.

Therefore the both the link reaction and the kreb.cycle

must occur twice to produce mandatory 2 ATPs ,and generate the required amount of reduced Co Enzymes NADH and FADH2 for ETC(electron transport Chain ) to occur.

Explanation:

You might be interested in
How is detritus important to wetland ecosystems?
ikadub [295]

Answer:

Detritus is important too wetland ecosystems, because it provides a food source for a variety of aquatic organisms.

Explanation:

brainlist

7 0
3 years ago
Read 2 more answers
What is a telophase
GREYUIT [131]
A telophase is the final phase of cell division, between anaphase and interphase, in which the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed.
6 0
3 years ago
​with the sequence of the gene-coding regions of the human genome in hand and the development of newer sequencing methods, scien
Masteriza [31]

With the sequence of the gene-coding regions of the human genome in hand and the development of newer sequencing methods, scientists are able to

1. develop new forensic tests that can help in the identification of the convict.

2. diagnose genetic diseases before their onset.

3. develop customised medicines based on the genetic profile of the patient.

4. therapeutically target the cancer causing genes (oncogenes) in the patients.

5. understand the inheritance of genes especially the rare mutations in a population.

5 0
4 years ago
The student is studying the movement of substances across the cell membrane. She understands that some substances combine with s
larisa86 [58]

Answer:

Facilitated diffusion

Explanation:

Facilitated diffusion is the transport of hydrophilic molecules that can not freely cross the membrane. Channel protein and many carrier proteins are in charge of this transport. When uncharged molecules cross the membrane, they do it according to their concentration gradients, going from the more concentrated side to the lower concentrated one. When ions need to cross the membrane, the process depends on an electrochemical gradient.  

Facilitated diffusion is a passive transport process because they only depend on electrochemical gradients, so they do not need any energy to occur.

3 0
3 years ago
which of the following would be the best way to determine whether a cell belonged with Archaea or bacteria?
docker41 [41]
Hey there

the answer is

 a Archean is a single celled microorganism and has no cell nucleus  
and Bacteria <span>constitute a large </span>domain<span> of </span>prokaryotic microorganisms<span>. Typically a few </span>micrometres<span> in length, bacteria have a </span>number of shapes<span>, ranging from </span>spheres<span> to </span>rods<span> and </span><span>spirals</span> 

so im going to say D as the answer

Hopes this helps u :)  
6 0
3 years ago
Other questions:
  • What is the correct order of a signal being transmitted across a neuromuscular junction?
    9·1 answer
  • Do bacterial cell membranes have cholesterol
    12·1 answer
  • Give two characteristics of nonvascular plants
    5·2 answers
  • Which cycle involves chemically storing energy and releasing energy through the use of the mitochondrion
    11·1 answer
  • How can acid rain affect biodiversity in a pond?
    14·1 answer
  • Rarely, the conjugation of Hfr and F− cells produces two Hfr cells. Explain how this event takes place.
    11·1 answer
  • Without plants, how well would a wetland filter water?
    15·1 answer
  • There are at least 3 different genes that work together to contribute
    14·1 answer
  • If a dog were to get pneumonoultramicroscopicsilicovolcanoconiosis, could it spread the disease to a human?
    11·1 answer
  • What are transverse waves made of? <br><br><br><br><br> help anyone?!!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!