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Latest CUET PG Sports Physiology Exam Question (Objective Questions), MCQ in English

Subjects : Sports Physiology

Question Bank CUET PG Sports Physiology (COQP20) Exam - English
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Sports Physiology

Question 1Single Answer
What are metabolic pathways?
  1. A
    Sequences of chemical reactions that occur in cells
  2. B
    Pathways through which food is digested
  3. C
    Routes for the transport of nutrients
  4. D
    Transport channels for oxygen in cells
Question 2Single Answer
Which of the following is true about anabolic pathways?
  1. A
    They break down molecules to release energy
  2. B
    They build complex molecules from simpler ones
  3. C
    They release heat as a byproduct
  4. D
    They do not require ATP
Question 3Single Answer
Catabolic pathways are responsible for:
  1. A
    Building up molecules
  2. B
    Releasing energy by breaking down molecules
  3. C
    Synthesizing proteins
  4. D
    Storing energy in the form of glycogen
Question 4Single Answer
Which of the following best describes the role of metabolic pathways?
  1. A
    To transport nutrients across membranes
  2. B
    To regulate oxygen consumption
  3. C
    To synthesize and degrade biomolecules for cellular function
  4. D
    To increase the production of mitochondria
Question 5Single Answer
An example of a catabolic pathway is:
  1. A
    Photosynthesis
  2. B
    Glycolysis
  3. C
    Protein synthesis
  4. D
    Nucleotide synthesis
Question 6Single Answer
What is the first step of glycolysis?
  1. A
    Conversion of glucose to glucose-6-phosphate
  2. B
    Conversion of pyruvate to acetyl-CoA
  3. C
    Formation of ATP
  4. D
    Formation of lactate
Question 7Single Answer
Which enzyme catalyzes the conversion of glucose to glucose-6-phosphate in glycolysis?
  1. A
    Hexokinase
  2. B
    Phosphofructokinase
  3. C
    Pyruvate kinase
  4. D
    Aldolase
Question 8Single Answer
How many ATP molecules are produced in glycolysis per molecule of glucose?
  1. A
    1
  2. B
    2
  3. C
    4
  4. D
    36
Question 9Single Answer
Which of the following is the major regulatory step of glycolysis?
  1. A
    Glucose-6-phosphate formation
  2. B
    Conversion of fructose-6-phosphate to fructose-1,6-bisphosphate
  3. C
    Pyruvate decarboxylation
  4. D
    Lactate production
Question 10Single Answer
What is the main function of the Krebs Cycle?
  1. A
    ATP production through substrate-level phosphorylation
  2. B
    NADPH production for biosynthesis
  3. C
    Oxidation of acetyl-CoA to produce energy-rich molecules
  4. D
    Breakdown of fatty acids
Question 11Single Answer
Which molecule enters the Krebs cycle from glycolysis?
  1. A
    Glucose
  2. B
    Pyruvate
  3. C
    Acetyl-CoA
  4. D
    Citrate
Question 12Single Answer
Which enzyme catalyzes the conversion of acetyl-CoA to citrate in the Krebs cycle?
  1. A
    Citrate synthase
  2. B
    Pyruvate dehydrogenase
  3. C
    Isocitrate dehydrogenase
  4. D
    Succinate dehydrogenase
Question 13Single Answer
How many NADH molecules are produced per turn of the Krebs cycle?
  1. A
    1
  2. B
    2
  3. C
    3
  4. D
    4
Question 14Single Answer
Which molecule is regenerated in the final step of the Krebs cycle?
  1. A
    Acetyl-CoA
  2. B
    NADH
  3. C
    Oxaloacetate
  4. D
    FADH2
Question 15Single Answer
What is the final electron acceptor in the electron transport chain?
  1. A
    Oxygen
  2. B
    NAD+
  3. C
    ATP
  4. D
    NADH
Question 16Single Answer
In oxidative phosphorylation, ATP is synthesized by:
  1. A
    ATP synthase
  2. B
    Hexokinase
  3. C
    Phosphofructokinase
  4. D
    Pyruvate dehydrogenase
Question 17Single Answer
Where does the electron transport chain occur in the cell?
  1. A
    Cytoplasm
  2. B
    Mitochondrial matrix
  3. C
    Inner mitochondrial membrane
  4. D
    Nucleus
Question 18Single Answer
Which of the following is produced during oxidative phosphorylation?
  1. A
    NADH
  2. B
    ATP
  3. C
    Pyruvate
  4. D
    Acetyl-CoA
Question 19Single Answer
How many ATP molecules are produced from the oxidation of one NADH molecule in oxidative phosphorylation?
  1. A
    1
  2. B
    2
  3. C
    3
  4. D
    4
Question 20Single Answer
The primary role of the pentose phosphate pathway is to produce:
  1. A
    ATP
  2. B
    NADPH
  3. C
    Glucose
  4. D
    FADH2
Question 21Single Answer
Which of the following is a product of the pentose phosphate pathway besides NADPH?
  1. A
    Pyruvate
  2. B
    Glucose-6-phosphate
  3. C
    Ribose-5-phosphate
  4. D
    Acetyl-CoA
Question 22Single Answer
Which enzyme is involved in the first step of the pentose phosphate pathway?
  1. A
    Glucose-6-phosphate dehydrogenase
  2. B
    Phosphofructokinase
  3. C
    Hexokinase
  4. D
    Citrate synthase
Question 23Single Answer
What is the role of NADPH produced in the pentose phosphate pathway?
  1. A
    Used in the synthesis of ATP
  2. B
    Involved in the synthesis of fatty acids and nucleotides
  3. C
    Converts glucose into pyruvate
  4. D
    Acts as a substrate for the Krebs cycle
Question 24Single Answer
Which of the following is not a product of the pentose phosphate pathway?
  1. A
    Ribose-5-phosphate
  2. B
    NADPH
  3. C
    ATP
  4. D
    Erythrose-4-phosphate
Question 25Single Answer
Allosteric regulation of enzymes involves:
  1. A
    Binding of a molecule at the active site to change the enzyme's shape
  2. B
    Binding of a molecule at a site other than the active site to modify enzyme activity
  3. C
    Increase in enzyme concentration
  4. D
    Decrease in enzyme concentration
Question 26Single Answer
Covalent modification of enzymes typically involves:
  1. A
    Addition of a phosphate group
  2. B
    Binding of substrates
  3. C
    Synthesis of new enzymes
  4. D
    Activation by feedback inhibition
Question 27Single Answer
Feedback inhibition is a process in which:
  1. A
    An enzyme is activated by the product of its own reaction
  2. B
    The final product of a pathway inhibits an earlier step in the pathway
  3. C
    A product is synthesized more rapidly
  4. D
    Enzymes bind to substrates more effectively
Question 28Single Answer
Which hormone stimulates the breakdown of glycogen in the liver?
  1. A
    Insulin
  2. B
    Glucagon
  3. C
    Cortisol
  4. D
    Adrenaline
Question 29Single Answer
Insulin primarily promotes:
  1. A
    Glycogen breakdown
  2. B
    Gluconeogenesis
  3. C
    Glycogen synthesis
  4. D
    Lipolysis
Question 30Single Answer
Which hormone increases glucose production during stress?
  1. A
    Insulin
  2. B
    Glucagon
  3. C
    Cortisol
  4. D
    Adrenaline
Question 31Single Answer
Adrenaline primarily influences:
  1. A
    Fatty acid oxidation
  2. B
    Glycogen synthesis
  3. C
    Glycogen breakdown
  4. D
    Protein synthesis
Question 32Single Answer
The availability of glucose affects the activity of which enzyme in glycolysis?
  1. A
    Hexokinase
  2. B
    Pyruvate kinase
  3. C
    Phosphofructokinase
  4. D
    Glucose-6-phosphate dehydrogenase
Question 33Single Answer
A high concentration of acetyl-CoA inhibits:
  1. A
    Glycolysis
  2. B
    Krebs cycle
  3. C
    Oxidative phosphorylation
  4. D
    Pentose phosphate pathway
Question 34Single Answer
Increased levels of NADH and ATP typically result in the inhibition of:
  1. A
    Glycolysis
  2. B
    Oxidative phosphorylation
  3. C
    Krebs cycle
  4. D
    Fatty acid synthesis
Question 35Single Answer
Which of the following statements about enzyme kinetics is correct?
  1. A
    Enzyme activity increases indefinitely with increased substrate concentration
  2. B
    Enzyme activity reaches a maximum (Vmax) at high substrate concentrations
  3. C
    Enzyme activity decreases at lower substrate concentrations
  4. D
    Substrate concentration has no effect on enzyme activity
Question 36Single Answer
Which enzyme is involved in the rate-limiting step of the citric acid cycle?
  1. A
    Pyruvate kinase
  2. B
    Citrate synthase
  3. C
    Isocitrate dehydrogenase
  4. D
    Succinate dehydrogenase
Question 37Single Answer
How is glycolysis regulated by fructose-2,6-bisphosphate?
  1. A
    It inhibits phosphofructokinase-1 (PFK-1)
  2. B
    It activates pyruvate kinase
  3. C
    It activates phosphofructokinase-1 (PFK-1)
  4. D
    It activates hexokinase
Question 38Single Answer
Which of the following hormones increases lipogenesis and glucose uptake in cells?
  1. A
    Insulin
  2. B
    Glucagon
  3. C
    Cortisol
  4. D
    Adrenaline
Question 39Single Answer
Which of the following molecules is an allosteric inhibitor of phosphofructokinase (PFK-1) in glycolysis?
  1. A
    ATP
  2. B
    NADH
  3. C
    ADP
  4. D
    Pyruvate
Question 40Single Answer
Which of the following best describes the role of NADH in cellular metabolism?
  1. A
    NADH is oxidized to produce ATP
  2. B
    NADH is reduced to produce NAD+
  3. C
    NADH is used to synthesize glucose
  4. D
    NADH directly fuels ATP production in the cytoplasm
Question 41Single Answer
In oxidative phosphorylation, which of the following is synthesized as a result of the proton gradient?
  1. A
    Glucose
  2. B
    ATP
  3. C
    Oxygen
  4. D
    NADH
Question 42Single Answer
Which pathway is primarily responsible for regenerating NAD+ during anaerobic metabolism?
  1. A
    Glycolysis
  2. B
    Oxidative phosphorylation
  3. C
    Fermentation
  4. D
    Pentose phosphate pathway
Question 43Single Answer
What is the main purpose of the electron transport chain (ETC)?
  1. A
    To break down glucose
  2. B
    To pump protons (H+) across the mitochondrial membrane
  3. C
    To produce glucose from pyruvate
  4. D
    To synthesize ATP directly from glucose
Question 44Single Answer
Which of the following is true regarding ATP production in glycolysis and oxidative phosphorylation?
  1. A
    Glycolysis produces more ATP than oxidative phosphorylation
  2. B
    Glycolysis produces ATP in the absence of oxygen
  3. C
    Oxidative phosphorylation does not require oxygen
  4. D
    Both glycolysis and oxidative phosphorylation generate ATP through substrate-level phosphorylation
Question 45Single Answer
Which of the following is a direct product of the pentose phosphate pathway?
  1. A
    Ribose-5-phosphate
  2. B
    Acetyl-CoA
  3. C
    Lactate
  4. D
    Glucose-6-phosphate
Question 46Single Answer
The conversion of pyruvate to lactate in anaerobic conditions is facilitated by which enzyme?
  1. A
    Lactate dehydrogenase
  2. B
    Pyruvate decarboxylase
  3. C
    Phosphofructokinase
  4. D
    Aldolase
Question 47Single Answer
What is the primary role of the mitochondrial matrix in the citric acid cycle?
  1. A
    ATP synthesis
  2. B
    Production of ribose-5-phosphate
  3. C
    Oxidation of acetyl-CoA to CO2
  4. D
    Regeneration of NAD+
Question 48Single Answer
Which metabolic pathway is primarily responsible for the production of NADPH used in anabolic reactions?
  1. A
    Glycolysis
  2. B
    Oxidative phosphorylation
  3. C
    Pentose phosphate pathway
  4. D
    Beta-oxidation
Question 49Single Answer
Which of the following metabolic pathways produces the majority of ATP during aerobic respiration?
  1. A
    Glycolysis
  2. B
    Krebs cycle
  3. C
    Oxidative phosphorylation
  4. D
    Beta-oxidation
Question 50Single Answer
During high-intensity exercise, which pathway is primarily used for ATP production?
  1. A
    Beta-oxidation
  2. B
    Glycolysis
  3. C
    Oxidative phosphorylation
  4. D
    Gluconeogenesis
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