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cricket20 [7]
3 years ago
12

What happens during the Krebs cycle?

Biology
2 answers:
Katena32 [7]3 years ago
7 0
Because for each glucose molecule there are two pyruvic acid molecules entering the system, two ATP molecules are formed. Also during the Krebs cycle<span>, the two carbon atoms of acetyl-CoA are released, and each forms a carbon dioxide molecule.</span>
Rufina [12.5K]3 years ago
3 0

Answer:

Kerb cycle is the pathway through which most of the cellular  energy (required for various metabolic  processes with in a cell)  is produced in the form of energy molecule ATP, NADH and FADH2

Explanation:

In a kerb cycle following happens sequentially -

a) Oxaloacetate (4 carbon compound) receives acetyl group (2 carbon) from acetyl CoA to produce citrate.  

b) Enzyme aconitase act on citrate to convert it into isocitrate who ich is further converted to alpha-ketogluterate thereby releasing one molecule of NADH and CO2  

c) alpha-ketogluterate is further converted into succynl-CoA accompanied by release of one molecule of NADH and CO2

d) ATP id produced while succynl-CoA is converted to succinate which is further converted to fumerate along with reduction of FAD to FADH2

e) Fumerate is then converted to malate and eventually to oxaloacetate by release of NADH

In one Kerb cycle, the end products produced are  

2 × CO2  

1 × ATP

3 × NADH

3 H+

1 × FADH2

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Hoochie [10]

Answer:

From factory emissions to carbon dioxide in the atmosphere (C)

The process occurring can be called Combustion. In this process, organic matter is burned in the presence of oxygen (oxidizer). It releases energy and carbon dioxide because the carbon in organic matter is oxidized to form CO2.

from dead organisms to fossils and fossil fuels (E)

The process explained in the question can be stated as Fossilisation. In this process, dead remains of plants and animals are transformed into fossils under pressure. The organic matter is preserved according to the shape of the organism.

from factory emissions to carbon dioxide in the atmosphere (C) & from carbon dioxide in the atmosphere to photosynthesis (B)

Two reactions represent the conversation of mass and energy. The burning of fossil fuel (mass) releases energy and carbon dioxide, which is again used by plants to store energy in the process of photosynthesis. This is shown in C and B part of the figure

Explanation:

3 0
2 years ago
16. One light year is the distance travelled by light in one year. If the speed of light is 3,00,000 km/s and light of the Sun t
meriva

Answer:

Distance=Speed×time

=300000×8.5 (1 minute= 60seconds)

Therefore 8.5×60=510seconds

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Explanation:

If you like my answer than please mark me brainliest thanks

5 0
3 years ago
select the cell cycle impairments that you predict would lead to cancer. recall that cancer arises from unregulated, repeated ce
Vera_Pavlovna [14]

Cancer cells can arise in a variety of ways, the most common, however, tends to be genetic mutations.

Genetic mutations can occur during the life of a cell due to outside factors such as:

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  • The <u>substances </u>that touch the cell (e.g skin cells)

That being said, the most common time for a genetic mutation to take place is during cellular division. During this time the DNA that encodes the cells is duplicated. Genetic mutations in this DNA sometimes cause the elimination of  <u>programmed cell death</u>.

<u>Programmed cell death </u>is what tells a cell when it should stop growing and dividing. This is a <u>regulatory function </u>designed to keep the number of cells at a balance, growing only when needed. As this cell multiplies, this produces an increasing number of cells that will not die. The <u>accumulation </u>of these cells is referred to as cancer.

To learn more visit:

brainly.com/question/436553?referrer=searchResults

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andriy [413]
Each of the term is identified whether they arise from the ectoderm, mesoderm or the endoderm.

The thyroid arises from the endoderm.
The thymus arises from the ectoderm.
The anterior pituitary arises from the ectoderm.
7 0
3 years ago
How can you tell what eras were previously under water? What is your evidence?
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