Start learning →

Maharashtra SSC (Class 10) Unit 8G: Comparative Physiology: Circulation, Respiration & Gas Exchange — practice questions

Explore 24 free Unit 8G: Comparative Physiology: Circulation, Respiration & Gas Exchange questions in Maharashtra SSC (Class 10) Biology. Open each question or exercise to read its content, reference answers and available explanation.

Practise Unit 8G: Comparative Physiology: Circulation, Respiration & Gas Exchange with Quill →

Unit 8G: Comparative Physiology: Circulation, Respiration & Gas Exchange questions and exercises with answers

Showing questions 1–24 of 24.

In which part of the cell does the process of glycolysis take place?Read the answer and worked solution →How many molecules of pyruvic acid are formed from the oxidation of one glucose molecule during glycolysis?Read the answer and worked solution →Which energy-rich molecule is described as the 'energy currency' of the cell?Read the answer and worked solution →Cellular respiration in which oxygen is involved is called:Read the answer and worked solution →How much energy is obtained per gram of carbohydrates?Read the answer and worked solution →Type of cell division that occurs in the somatic cells and stem cells of the body is:Read the answer and worked solution →During the electron transfer chain reaction, how many molecules of ATP are obtained from each molecule of NADH2?Read the answer and worked solution →Which substance accumulates in muscle cells when they perform anaerobic respiration during exercise, making us feel tired?Read the answer and worked solution →The two main steps through which mitosis is completed are:Read the answer and worked solution →In which phase of mitosis are all chromosomes arranged parallel to the equatorial plane of the cell?Read the answer and worked solution →In which phase of mitosis do the centromeres split so that sister chromatids separate and move to opposite poles?Read the answer and worked solution →The cyclical reactions of the tricarboxylic acid cycle take place in which cell organelle?Read the answer and worked solution →The two steps that make up anaerobic respiration are:Read the answer and worked solution →Which scientist is credited with discovering the cyclical reactions of the tricarboxylic acid cycle?Read the answer and worked solution →In an onion (a plant cell), how is cytokinesis completed at the end of cell division?Read the answer and worked solution →How much energy is obtained per gram from lipids?Read the answer and worked solution →Pyruvic acid is converted into which molecule before it enters the mitochondria for the Krebs cycle?Read the answer and worked solution →Genetic recombination (crossing over) occurs between homologous chromosomes during which process?Read the answer and worked solution →From one diploid (2n) cell, how many haploid daughter cells are produced at the end of meiosis?Read the answer and worked solution →During the conversion of pyruvic acid to acetyl-CoA, which gas is released?Read the answer and worked solution →Which set of components makes up an ATP molecule?Read the answer and worked solution →In the electron transfer chain reaction, what is the total ATP yield from two NADH2 and two FADH2 molecules together?Read the answer and worked solution →In which phase of mitosis do the nuclear membrane and nucleolus start to disappear while centrioles duplicate and move to opposite poles?Read the answer and worked solution →Which of these is NOT a function for which mitosis is essential?Read the answer and worked solution →

Worked practice questions

In which part of the cell does the process of glycolysis take place?

  1. Mitochondria
  2. Nucleus
  3. Cytoplasm
  4. Ribosomes
Show answer and solution

Correct answer: C. Cytoplasm

1. Glycolysis is the first step of cellular respiration. 2. It splits a glucose molecule step by step. 3. This process occurs in the cytoplasm, not in any organelle. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 2 "Life Processes in Living Organisms Part 1", p.22_

Open this question →

How many molecules of pyruvic acid are formed from the oxidation of one glucose molecule during glycolysis?

  1. Four
  2. Two
  3. Six
  4. One
Show answer and solution

Correct answer: B. Two

1. In glycolysis one glucose molecule is oxidized step by step. 2. The products formed are two molecules each of pyruvic acid, ATP, NADH2 and water. 3. So two molecules of pyruvic acid are produced. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 2 "Life Processes in Living Organisms Part 1", p.22_

Open this question →

Which energy-rich molecule is described as the 'energy currency' of the cell?

  1. NADH2
  2. ATP
  3. FADH2
  4. Glucose
Show answer and solution

Correct answer: B. ATP

1. ATP stores energy in the bonds attaching its phosphate groups. 2. Energy is released by breaking a phosphate bond as per need. 3. Because of this it is called the energy currency of the cell. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 2 "Life Processes in Living Organisms Part 1", p.23_

Open this question →

How to practise

  1. Choose a Unit 8G: Comparative Physiology: Circulation, Respiration & Gas Exchange question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

Put it into practice

Continue with Unit 8G: Comparative Physiology: Circulation, Respiration & Gas Exchange practice for Maharashtra SSC (Class 10). Read explanations as you go. No signup form needed to start.

Practise Unit 8G: Comparative Physiology: Circulation, Respiration & Gas Exchange →

More Biology topics

Life Processes & Human PhysiologyUnit 2F1: Animal Cell Biology and SpecializationUnit 8J: Comparative Physiology: Transport & RegulationUnit 7B: Population Genetics & Hardy-Weinberg EvolutionUnit 2F2: Animal Classification and DiversityUnit 7C1: Evolution & Animal Structural Organisation