Tag: cellular respiration

Quizzes (1) Questions (98)

Questions Related to cellular respiration

Multiple choice parts of respiration cellular respiration the respiratory system breathing for energy biology types of respiration

Energy releasing process in which substrate is oxidised without an external electron acceptor is

  1. Aerobic respiration.

  2. Fermentation.

  3. Photorespiration.

  4. Glycolysis.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

During glycolysis process the substrate pyruvic acid is formed from glucose is then oxidized into lactic acid in muscles by pyruvic acid, decarboxylase and alcohol dehydrogenase.

So the correct option is 'Glycolysis.'

Multiple choice parts of respiration cellular respiration the respiratory system breathing for energy biology types of respiration

Which of the following is incorrect for glycolysis?

  1. It produces ATP

  2. It uses ATP
  3. End products are CO$ _2$ and H$ _2$O

  4. None of the above.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

During the process of glycolysis, ATP is utilized and produced but the carbon dioxide and water are not the end products.

So the correct option is 'End products are CO$ _2$ and H$ _2$O.'

Multiple choice parts of respiration cellular respiration the respiratory system breathing for energy biology types of respiration

NADH is produced in

  1. Photosystem II

  2. Photosystem I

  3. Glycolysis

  4. Both A and B
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

NADH is essentially produced only during the cellular respiration and it gets oxidised to release energy in the form of ATP. Glycolysis is a part of cellular respiration and leads to production of NADH. However, photosystem I and II produce NADPH rather than NADH as energy carriers. So the answer is 'Glycolysis'.

Multiple choice parts of respiration cellular respiration the respiratory system breathing for energy biology types of respiration

Which group of scientists discovered glycolysis?

  1. Embden, Merrison and Pitches

  2. Embden, Meyerhof and Parnas

  3. Emerson, Hoffman and Peterson

  4. Avery, Macleod and Mc Carthy
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Glycolysis takes place in the liquid part of the cytoplasm i.e. cytosol. The most common type of glycolysis is the Embden–Meyerhof–Parnas (EMP pathway), which was discovered by Gustav Embden, Otto Meyerhof, and Jakub Karol Parnas. 

So the correct option is 'Embden, Meyerhof and Parnas.'

Multiple choice parts of respiration cellular respiration the respiratory system breathing for energy biology types of respiration

What occurs in glycolysis?

  1. Fixation.

  2. Reduction.

  3. Dehydrogenation.

  4. Oxidation.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Glycolysis takes place in the cytosol of cytoplasm without the involvement of oxygen. The by-product of glycolysis is pyruvate which entered into mitochondria and oxidized oxygen to carbon dioxide.

So the correct option is 'Oxidation.'

Multiple choice parts of respiration cellular respiration the respiratory system breathing for energy biology types of respiration

In glycolysis, enzyme enolase produces

  1. Phosphoglyceric acid

  2. Phosphoenol pyruvate

  3. Phosphoglyceraldehyde

  4. Pyruvate
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In glycolysis, the respiratory substrate glucose is oxidised to pyruvic acid to release energy. The enzyme enolase converts phosphoglycerate to phosphoenol pyruvate with the release of H$ _2$O. So, the correct answer is 'Phosphoenol pyruvate'.

Multiple choice parts of respiration cellular respiration the respiratory system breathing for energy biology types of respiration

Glycolysis is part of

  1. Only anaerobic respiration

  2. Krebs cycle

  3. Only aerobic respiration

  4. Both aerobic and anaerobic respiration.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There is no utilization oxygen is seen in the process of glycolysis which takes place in the cytoplasm and it is an anaerobic process. After finishing the glycolysis the cell needs to respirate through aerobic respiration in the presence of oxygen. Aerobic reactions occur in the mitochondria which require oxygen.

So the correct option is 'Both aerobic and anaerobic respiration'.

Multiple choice biology breathing for energy parts of respiration cellular respiration types of respiration
Anaerobic respiration takes place in

  1. mitochondrion

  2. nucleus

  3. cytoplasm

  4. vacuole
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Anaerobic respiration (both glycolysis and fermentation) takes place in the fluid portion of the cytoplasm whereas the bulk of the energy yield of aerobic respiration takes place in the mitochondria. So, the correct answer is "Cytoplasm."