1. What is animal energetics?
A) The study of animal behavior
B) The study of animal anatomy and physiology
C) The study of energy flow and metabolism in animals
D) The study of animal genetics and heredity
Answer: C) The study of energy flow and metabolism in animals
2. Which of the following is the primary source of energy for most animals?
A) Carbohydrates
B) Proteins
C) Lipids (fats)
D) Nucleic acids
Answer: C) Lipids (fats)
3. What is the main function of cellular respiration in animals?
A) To produce glucose for energy
B) To synthesize proteins
C) To break down glucose to release energy
D) To store energy in the form of ATP
Answer: C) To break down glucose to release energy
4. Which organelle is primarily responsible for cellular respiration in animal cells?
A) Nucleus
B) Golgi apparatus
C) Mitochondria
D) Endoplasmic reticulum
Answer: C) Mitochondria
5. What is the ultimate product of cellular respiration in animals?
A) Glucose
B) Oxygen
C) Carbon dioxide
D) Water
Answer: C) Carbon dioxide
6. Which process is responsible for the conversion of food into usable energy in animals?
A) Photosynthesis
B) Glycolysis
C) Fermentation
D) Cellular respiration
Answer: D) Cellular respiration
7. What is the primary function of glycolysis in cellular respiration?
A) To produce ATP
B) To break down glucose into pyruvate
C) To generate carbon dioxide
D) To synthesize glucose from pyruvate
Answer: B) To break down glucose into pyruvate
8. Which molecule carries high-energy electrons produced during glycolysis and the Krebs cycle to the electron transport chain?
A) ATP
B) NAD+
C) FADH2
D) Pyruvate
Answer: C) FADH2
9. How many molecules of ATP are generated from the complete oxidation of one molecule of glucose during cellular respiration?
A) 2
B) 4
C) 36
D) 38
Answer: D) 38
10. What is the primary function of the electron transport chain in cellular respiration?
A) To produce ATP
B) To synthesize glucose
C) To generate carbon dioxide
D) To convert pyruvate to lactate
Answer: A) To produce ATP
11. Which process occurs in the absence of oxygen and results in the production of lactate or ethanol?
A) Glycolysis
B) Krebs cycle
C) Electron transport chain
D) Oxidative phosphorylation
Answer: A) Glycolysis
12. What is the main purpose of the Krebs cycle in cellular respiration?
A) To produce ATP
B) To convert glucose to pyruvate
C) To generate carbon dioxide and high-energy electrons
D) To synthesize proteins
Answer: C) To generate carbon dioxide and high-energy electrons
13. Which of the following is NOT a factor influencing an animal’s metabolic rate?
A) Body size
B) Environmental temperature
C) Gender
D) Atmospheric pressure
Answer: D) Atmospheric pressure
14. What is basal metabolic rate (BMR)?
A) The metabolic rate during activity
B) The metabolic rate during hibernation
C) The metabolic rate at rest under standard conditions
D) The metabolic rate during digestion
Answer: C) The metabolic rate at rest under standard conditions
15. Which of the following animals typically has the highest metabolic rate per unit mass?
A) Small mammals
B) Large mammals
C) Reptiles
D) Birds
Answer: D) Birds