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3 years ago

The Venn diagram compares aerobic and anaerobic respiration.

Biology

2 answers:

ddd [48]3 years ago

6 0

The right answer is A. uses pyruvic acid

Pyruvate, the final product of glycolysis, follows different catabolic pathways according to the nature of the organism and the metabolic conditions.

- Lactic fermentation: anaerobic glycolysis in the muscle in contraction or in certain tissue types (brain, retina, erythrocytes).

- Alcoholic fermentation: anaerobic glycolysis in yeast and certain microorganisms.

- The oxidative decarboxylation followed by the Krebs cycle: oxidation of pyruvate to CO2 and H2O in animals, plants and many prokaryotic aerobic cells.

Citrus2011 [14]3 years ago

5 0

Ans.

Aerobic respiration involves complete breakdown of a glucose molecule in the presence of oxygen to generate energy, in the form of ATP molecules (36 molecules of ATP).

On the other hand, anaerobic respiration involves partial breakdown of a glucose molecule in the absence of oxygen to generate energy as ATP molecules (2 molecules of ATP).

The common feature, shared by both aerobic and anaerobic respiration is use of pyruvate (pyruvic acid). The pyruvic acid is formed by the process of glycolysis, which is common for both the processes.

In aerobic respiration, pyruvic acid is used to form acetyl coenzyme A that enters the Kreb's cycle, while during the anaerobic respiration, pyruvic acid is used to make alcohol or lactic acid to regenerate NAD+.

Thus, the correct answer is option A). 'uses pyruvic acid.'

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Which of the following is true about sexual reproduction?

adell [148]

Answer:

Where two organism reproduce and have a offspring like themselves.

Explanation:

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3 years ago

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Oh, no... you dropped your study flashcards, and now they're out of order! Put them back into the correct order for a eukaryotic

Vladimir79 [104]

The given question is incomplete, the complete question is:

Oh, no... you dropped your study flashcards, and now they're out of order! Put them back into the correct order for a eukaryotic cell.

a. "Combine the mRNA strand with a ribosome and a tRNA carrying a methionine."

b. "Unwind the DNA molecule near the promoter."

c. "Exit the nucleus to the cytoplasm."

d. "Transcribe the complementary RNA strand."

[Tip: you might want to work out the correct order on a piece of scratch paper before selecting from the options below.]

c - d - b - a

b - d - c - a

c - b - d - a

d - b - c - a

b - d - a - c

Answer:

The correct order would be b, d, c, a.

Explanation:

First unwinding of the molecule of DNA takes place close to the promoter. After that transcription of the complementary RNA strand takes place, then mRNA moves out of the nucleus into the cytoplasm. Ultimately, the combination of ribosome and tRNA carrying a methionine takes place with the mRNA.

The order is based upon the central dogma of the cell. Based on the central dogma concept, the transcription of the mRNA takes place in the first place, which then gets transported out of the nucleus into the cytoplasm in the eukaryotic cell. The unwinding of DNA takes place close to the sequence of the promoter for the process of transcription.

In the promoter region, various transcription factors are present and binding of RNA polymerase takes place with the template strand. The generated mRNA then get transported out of the nucleus into the cytoplasm. Post transcription, translation of mRNA takes place with the assistance of tRNA and ribosome. In the mRNA, the start codon generally codes for methionine because of which the tRNA that carries methionine identifies the start codon, and the process of translation gets initiated.

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AfilCa [17]

Answer: G)Vacuole

Explanation:

G)Vacuole is the answer. Hope this helps!

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Cellulose is found throughout the cell walls of plant cells cellouse makes cell walls rigid which indicates that cellulose is a

quester [9]

As you stated before, cellulose is found throughout the cell walls of plant cells. Cellulose makes cell walls rigid, so that would indicate that cellulose is a carbohydrate.

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3 years ago

Which of the following statements about a prokaryotic cell is NOT true?

Gemiola [76]

The right option is; A. Prokaryotic cells have a nucleus

''Prokaryotic cells have a nucleus'' is the statement about prokaryotic cells that is NOT true.

Prokaryotic cells are cells that lack a true nucleus and some other cell organelles. Prokaryotic cells are found in unicellular organisms called prokaryotes. Examples of prokaryotes are; Bacteria and Archaea. The components of prokaryotic cells include plasma membrane, cell wall, cytoplasm, nucleoid, ribosomes, DNA (deoxyribonucleic acid). Most of the prokaryotic’s DNA (genetic material) is located in a middle area of the cell (nucleoid), and it contains a single large loop known as a circular chromosome.

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