All categories

3 years ago

Which of these processes is responsible for generating the most ATP within cellular respiration?

Biology

2 answers:

Andrew [12]3 years ago

6 0

Electron transport chain produces the most atp

Nataly [62]3 years ago

5 0

Answer:

The correct answer would be b. the electron transport chain.

Electron transport chain ETC) refers to the transport of high energy electrons through the series of electron carrier complexes. The complexes associated with ETC are embedded in the inner mitochondrial membrane.

Products such as NADH and FADH₂ released from processes such as glycolysis, pyruvate decarboxylation, and Krebs cycle are used as electron donors in ETC.

The energy of electrons are used to pump protons into the inter-membrane space which leads to the generation of chemical gradient across the membrane.

This gradient is used by the enzyme ATP synthase (embedded in the inner membrane) to phosphorylate ADP into ATP.

It leads to the generation of approximately 34 ATP.

You might be interested in

If a woman has had a intercourse, and she missed a menstrual period by more than 14 days, she probably is pregnant. True or Fals

-BARSIC- [3]

Answer:

true

Explanation:

3 0

3 years ago

Read 2 more answers

Read each of the sentences that describe what happens either during mitosis or meiosis. Drag each sentence into the correct box.

kiruha [24]

Answer:

MEIOSIS:

- Each replicated chromosome pairs with its corresponding homologous chromosome

- Tetrads form and crossing over sometimes occur

- Paired homologous chromosome line up across the center of the cell.

- Four haploid daughter cells form that are not identical to the parent cell

MITOSIS:

- Homologous chromosomes do not pair

- One row of chromosomes line up at the center of the cell.

- The cell nucleus divides only once

- Two diploid daughter cells form that are identical to the parent cell.

Explanation:

Mitosis and Meiosis are the two cellular divisions that occur in living organisms. Mitosis is the kind of cell division that produces two diploid daughter cells that are genetically identical to the parent cell while Meiosis produces four haploid daughter cells (gametes) that are genetically different from the parent cell.

Based on the general description of the two cell divisions above, the following events take place in them respectively:

1) MEIOSIS:

- Each replicated chromosome pairs with its corresponding homologous chromosome (similar but non-identical chromosome from each parent).

- Tetrads form and crossing over sometimes occur. Tetrads are the structures that form when two homologous chromosomes pair while crossing over is the exchange of chromosome segment between two non-sister chromatids of homologous chromosomes. These two only occur during meiosis.

- Paired homologous chromosome line up across the center of the cell during metaphase I of meiosis.

- Four haploid daughter cells form that are not identical to the parent cell. Note that meiosis reduces the chromosomal number of the parent cell by half.

2) MITOSIS:

- Homologous chromosomes do not pair during mitosis.

- One row of replicated chromosomes (sister chromatids) line up at the center of the cell during metaphase.

- The cell nucleus divides only once in mitosis as opposed to twice during meiosis.

- Two diploid daughter cells form that are identical to the parent cell. Note that mitosis retains the chromosomal number of the parent cell.

4 0

3 years ago

How are conditions of pressure and temperature, at which two phases coexist in equilibrium, shown on a phase diagram?

hammer [34]

On the phase diagram, conditions of pressure and temperature, at which two phases coexist in equilibrium are separated by a line.

5 0

3 years ago

Read 2 more answers

All organisms share some common traits because they all share common ancestors at some point in the evolutionary past. these com

snow_lady [41]

Homologous / divergent evolution

7 0

3 years ago

Q - Describe the Mitoses with the help of diagram. write its different phares and explain them.

bonufazy [111]

Answer:

Mitosis is a type of cell division in which single haploid cell (n) or diploid cell (2n) divides into two haploid or diploid daughter cells that are same as the parent.

Mitosis occurs in somatic cells of plants and animals. In this cell division, the two daughter cells have the same number of chromosomes as that in the parent cells.

Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase.

1.Prophase:-

It is the first visible stage in karyokinesis. The chromosomes appear as long coiled threads called chromatids. The chromatin becomes shorter, thicker and visible due to the condensation of DNA. The chromatins are now called chromosomes. Stainability of nucleus increase. Each chromosome starts to splits longitudinally into two sister chromatids. These sister chromatids are attached to each other at the centromere. The nuclear membrane and nucleolus start to disappear and by the end, it will be completely disappeared.

ii. Metaphase:-

Nuclear membrane and nucleolus completely disappears and simultaneously appearance of spindle fibers. Spindle fibers are attached to the centromere of a chromosome. The chromosomes are arranged on the equatorial plane. The process of gathering of chromosomes in equator is called congressional and plate formed is called metaphasic plate.

iii. Anaphase:-

The centromere of each chromosome splits into two sister chromatids and forms two daughter chromosomes. The daughter chromosomes are pulled towards the poles due to the contraction of spindle fibres and stretching of interzonal fibers. During polar movement, the chromosomes show different shapes i.e. J, U, V, L or I shaped in appearance. At the end of anaphase, each pole will get one set of daughter chromosomes. It is the shortest phase and is also known as a migratory phase.

iv. Telophase:- The daughter chromosomes reach respective poles and uncoil and become thin, long and visible. The spindle fibres start disappearing and finally disappear. The nuclear membrane and the nucleolus reappear.

Two nuclei are formed at the end of telophase. Both the nuclei have the same number of chromosome as the parent cell. It is the last visible stage of karyokinetic and is also known as reorganization phase.

It is followed by cytokines or division of cytoplasm.

Explanation:

5 0

2 years ago