Practicing MCQs is one of the important tactics that every above-averaged and extraordinary student mostly applies. This Technique enables the students to assess their knowledge and their command over the topics of various subjects. In this article, we will share with you a list of animal nutrition MCQs. We will also provide you the link of animal nutrition mcqs with answers pdf free download. This pdf contains approximately 600 mcqs which will help you assess your knowledge of the animal nutrition subject.
Animal Nutrition MCQs Sample With Answers
1. What is the etymological origin of the word “animal”?
A) Derived from Greek
B) Derived from Latin
C) Derived from Sanskrit
D) Derived from Germanic
Answer: B)
2. Which kingdom do animals belong to?
A) Plantae
B) Animalia
C) Fungi
D) Protista
Answer: B)
3. Which group of animals lacks a backbone?
A) Vertebrates
B) Invertebrates (Answer)
C) Mammals
D) Amphibians
Answer: B)
4. What defines herbivores among animals?
A) They consume both plant and animal materials
B) Their diets consist mainly of nonplant materials
C) Their diets are composed primarily of plant materials (Answer)
D) They are obligate carnivores
Answer: C)
5. Which order includes obligate carnivores among companion animals?
A) Carnivora
B) Rodentia
C) Chiroptera
D) Artiodactyla
Answer: A)
6. How many estimated animal species were mentioned in Wilson’s estimation?
A) 1,032,000
B) 10,000
C) 100,000
D) 100,320,000
Answer: A)
7. Among the mentioned species count, which group has the highest number of species?
A) Birds
B) Mammals
C) Reptiles
D) Invertebrates
Answer:D)
8. What similarity is emphasized among animals in terms of physiology, metabolism, and nutrition?
A) Greater differences
B) Moderate differences
C) Greater similarities
D) No similarities
Answer: C)
9. Which of the following is NOT among the terrestrial vertebrate species mentioned in the text?
A) Sharks
B) Goats
C) Horses
D) Sharks
Answer: A)
10. What has recent progress in animal nutrition mainly focused on?
A) Feeding habits of aquatic species
B) Understanding the nutrition of wild animals (Answer)
C) Nutrition of domesticated species
D) Nutrition of insects
Answer: B)
11. What distinguishes vertebrates from invertebrates?
A) Presence of a backbone
B) Absence of limbs
C) Terrestrial habitat
D) Aquatic lifestyle
Answer: A)
12. Which animal is categorized as an obligate carnivore?
A) Dogs
B) Cats
C) Rabbits
D) Horses
Answer: B)
13. What aspect contributes to the survival and growth of animals?
A) Limited nutrient intake
B) Inadequate intake of nutrients
C) Adequate intake of nutrients
D) Lack of soul
Answer: C)
14. What defines omnivores among animals?
A) Their diets consist mainly of nonplant materials
B) Their diets are composed primarily of plant materials
C) Their diets include both plant and animal materials
D) They are obligate carnivores
Answer: C)
15. How many estimated species of birds were mentioned in Wilson’s estimation?
A) 6,300
B) 4,000
C) 18,800
D) 9,000
Answer: A)
16. Which group of animals includes corals, crabs, and spiders?
A) Vertebrates
B) Mammals
C) Reptiles
D) Invertebrates
Answer: D)
17. What is the primary focus of recent progress in animal nutrition?
A) Understanding the nutrition of domesticated species
B) Nutrition of terrestrial vertebrates
C) Nutrition of wild animals
D) Nutrition of aquatic invertebrates
Answer: C)
18. What characterizes herbivores among animals?
A) They consume both plant and animal materials
B) Their diets consist mainly of nonplant materials
C) Their diets are composed primarily of plant materials
D) They are facultative carnivores
Answer: C)
19. Which of the following is an example of an invertebrate animal?
A) Cattle
B) Fish
C) Lobster
D) Sheep
Answer: C)
20. What are nutrients?
A) Compounds or substances needed for growth only
B) Substances needed for reproduction
C) Compounds or substances needed to support various aspects of animal health and development
D) Substances needed for lactation
Answer: C)
21. What is the primary classification of feeds for farm animals?
A) Wet forages
B) Protein feeds
C) Energy feeds
D) Synthetic feeds
Answer: C)
22. Which term refers to any material used for feed?
A) Feedstuff
B) Feed ingredient
C) Diet
D) Ration
Answer: A)
23. According to the provided text, which term is interchangeable with “feed ingredient”?
A) Feedstuff
B) Diet
C) Ration
D) Meal
Answer: A)
24. What is the definition of nutrition according to Merriam-Webster’s dictionary?
A) The process of nourishing humans only
B) The sum of processes by which an animal takes in and utilizes food substances
C) The process of digestion and absorption
D) The act of food intake
Answer: B)
25. Which scientific disciplines are related to animal nutrition?
A) Mathematics and Physics
B) Chemistry and Biology
C) Sociology and Anthropology
D) Psychology and Philosophy
Answer: B)
26. What is the primary objective of animal nutrition as mentioned in the text?
A) To understand animal behavior
B) To improve animal survival, growth, and health by understanding their metabolism and dietary nutrients
C) To focus on animal genetics
D) To solely consider dietary intake for animals
Answer: B)
27. What does a diet refer to in the context of animal nutrition?
A) The daily allowance of feed
B) The type of feed consumed by animals in the morning
C) The mixture of feedstuffs that supplies nutrients to an animal
D) The amount of feed consumed by an animal on regular occasions
Answer: C)
28. Which component may be included with feeds to prepare complete diets for animals?
A) Antibiotics
B) Grains
C) Roughages
D) Hay
Answer: A
29. What comprises the daily allowance or amount of feed provided to an animal?
A) Feedstuff
B) Diet
C) Ration
D) Meal
Answer: C)
30. According to the text, what does nutrition encompass?
A) Food intake only
B) The interaction of nutrients in food that influence animal development
C) Processes involved in digestion, absorption, and excretion
D) The interaction of nutrients and other substances in food influencing various aspects of animal health and development
Answer: D)
31. What are the sources of feedstuffs for grazing ruminants?
A) Synthetic materials
B) Range plants
C) Animal byproducts
D) Vitamin premix
Answer: B)
32. Which scientific disciplines are not directly related to animal nutrition according to the provided text?
A) Biochemistry and Physiology
B) Sociology and Anthropology
C) Pharmacology and Immunology
D) Food chemistry and Molecular biology
Answer: B)
33. Which term refers to the feed consumed by an animal on regular occasions?
A) Ration
B) Meal
C) Feed ingredient
D) Feedstuff
Answer: B)
34. What does nutrition encompass in terms of animal science?
A) Processes involved in food preparation
B) Processes involved in nutrient utilization and health of animals
C) Processes involved in animal breeding
D) Processes involved in animal training
Answer: B)
35. What is the primary classification of feed for grazing ruminants?
A) Energy feeds
B) Protein feeds
C) Green pasture and forage feeds
D) Silages
Answer: C)
36. According to the provided text, what are roughage examples of?
A) Dry forages
B) Energy feeds
C) Green pasture
D) Silages
Answer: A)
37. Which component comprises a diet for an animal?
A) Feedstuff
B) Feed ingredient
C) Ration
D) Meal
Answer: A)
38. What is the definition of nutrition?
A) The science that interprets the interaction of nutrients and other substances in food
B) The process of food intake
C) The process of food digestion
D) The science of animal behavior related to food
Answer: A)
39. What does a ration refer to in animal nutrition?
A) The daily allowance of feed
B) The type of feed consumed by animals in the morning
C) The mixture of feedstuffs that supplies nutrients to an animal
D) The amount of feed consumed by an animal on regular occasions
Answer: A)
40. Which term is synonymous with “feedstuff”?
A) Ration
B) Diet
C) Meal
D) Feed ingredient
Answer: D)
41. Which substances are considered nutrients in the context of animal nutrition?
A) Compounds or substances that solely support growth
B) Compounds or substances needed to support various aspects of animal health and development
C) Compounds or substances needed only for lactation
D) Compounds or substances needed for reproduction only
Answer: B)
42. What does nutrition include in animal science?
A) Processes involved in food packaging
B) Processes involved in nutrient utilization and animal health
C) Processes involved in animal transportation
D) Processes involved in animal communication
Answer: B)
43. What do roughages primarily consist of in animal nutrition?
A) Dry forages
B) Energy feeds
C) Green pasture
D) Silages
Answer: A)
44. According to the text, what is nutrition focused on in animal science?
A) Processes involved in food preservation
B) Processes involved in nutrient utilization and animal health
C) Processes involved in animal entertainment
D) Processes involved in animal breeding
Answer: B)
45. What are the primary components of dry matter (DM) in feedstuffs and animals?
A) Minerals and water
B) Organic and inorganic substances
C) Proteins and carbohydrates
D) Water and lipids
Answer: B)
46. Which method, developed in 1865, is commonly used for determining nutrient composition in feedstuffs and animals?
A) Kjeldahl analysis
B) Atomic absorption spectrophotometry
C) Proximate or Weende analysis
D) Liquid chromatography–mass spectrometry
Answer: C)
47. What are the components of the traditional proximate analysis used for determining feed nutrient composition?
A) Carbohydrates, lipids, and minerals
B) Cellulose, hemicellulose, and lignin
C) Proteins, carbohydrates, crude fat, crude fiber, and ash
D) Volatile compounds, essential oils, and fatty acids
Answer: C)
48. Which method allows for a more precise analysis of plant fiber and its constituents?
A) Proximate analysis
B) Liquid chromatography–mass spectrometry
C) Acid detergent fiber (ADF) method
D) Kjeldahl analysis
Answer: C)
49. What is the primary focus of biochemistry as it pertains to nutrition and animal science?
A) Study of mineral metabolism
B) Understanding the chemical basis of nutrient utilization and metabolism in living organisms
C) Examination of cell structures
D) Analysis of hormonal functions
Answer: B)
50. What contributed to the discovery of the Krebs cycle in 1937, according to the text?
A) Nutritional observations
B) Biochemical studies
C) Physiological experiments
D) Cellular activities
Answer: A)
51. What does physiology primarily encompass in relation to animal nutrition?
A) Study of organ development
B) Investigation of hormone secretion
C) Understanding how ingested food is digested, absorbed, and assimilated to maintain homeostasis and support vital functions
D) Analysis of cellular respiration
Answer: C)
52. How did the discovery of the vitamin K-dependent mechanism for blood coagulation originate?
A) Through physiological experiments on rats
B) Via biochemical studies on lipids
C) From nutritional findings related to cattle and rats
D) By analyzing hormonal interactions
Answer: C)
53. What is the primary relationship between nutrition and biochemistry?
A) Nutrition provides the foundation for biochemistry
B) Biochemistry guides nutritional studies
C) Both disciplines are independent and unrelated
D) They are interdependent, with nutritional observations often leading to exciting biochemical studies
Answer: D)
54. How does physiological research relate to nutritional observations, according to the text?
A) Physiological research exclusively uses biochemical methods
B) Physiological research is based on the utilization of vitamins and minerals
C) Nutritional observations often lead to discoveries in physiological mechanisms and functions
D) Physiological research focuses primarily on animal behavior related to nutrition
Answer: C)
55. Which process involves the energy-independent movement of substances across the membrane, facilitated by carrier proteins?
A) Active transport
B) Passive diffusion
C) Facilitated diffusion
D) Secondary active transport
Answer: C)
56. Which transporter is responsible for the movement of glucose from the intestinal lumen into enterocytes by utilizing the co-movement of sodium ions?
A) Glucose transporter-4
B) Sodium–glucose-linked transporter-1 (SGLT1)
C) H+-driven peptide transporter 1 (PepT1)
D) Monocarboxylate transporter
Answer: B)
57. What type of transport does not directly require ATP, GTP, or UTP for energy?
A) Active transport
B) Secondary active transport
C) Facilitated diffusion
D) Ion channel transport
Answer: B)
58. Which system is responsible for the supply of oxygen to oxidize nutrients into carbon dioxide and water?
A) Respiratory system
B) Musculoskeletal system
C) Circulatory system
D) Digestive system
Answer: A)
59. What is the basic unit of the nervous system?
A) Neuron
B) Neurotransmitter
C) Glial cell
D) Synapse
Answer: A)
60. Which type of neuron connects neurons within the central nervous system?
A) Sensory neuron
B) Motor neuron
C) Interneuron
D) Efferent neuron
Answer: C)
61. What structure is responsible for the junction between two neurons?
A) Dendrite
B) Synapse
C) Axon
D) Cell body
Answer: B)
62. Which ions are involved in maintaining the electrochemical potential across the neuron’s plasma membrane?
A) Sodium and potassium
B) Potassium and calcium
C) Calcium and chloride
D) Sodium and chloride
Answer: A)
63. What is released into the synaptic cleft upon stimulation by the electrical signal in a neuron?
A) Neurotransmitters
B) Ion pumps
C) Glial cells
D) Axons
Answer: A)
64. How do neurotransmitters transmit an action potential to the next cell in the neural network?
A) By electrical impulses
B) By releasing potassium ions
C) By binding to receptors on the post-synaptic membranes
D) By generating synapses
Answer: C)
65. Which of the following is NOT a neurotransmitter?
A) Dopamine
B) Nitric oxide
C) Serotonin
D) Glucose
Answer: D)
66. The central nervous system comprises which main components?
A) Brainstem, cerebellum, midbrain
B) Thalamus, hypothalamus, spinal cord
C) Brainstem, forebrain, midbrain
D) Cerebrum, spinal cord, medulla oblongata
Answer: C)
67. Which system innervates skeletal muscles?
A) Autonomic nervous system
B) Sympathetic nervous system
C) Somatic nervous system
D) Parasympathetic nervous system
Answer: C)
68. Which neurotransmitter-dependent system is associated with the “rest and digest” response?
A) Norepinephrine-dependent sympathetic nervous system
B) Acetylcholine-dependent parasympathetic nervous system
C) Nitric oxide-dependent nervous system
D) Serotonin-dependent nervous system
Answer: B)
69. What does the sympathetic nervous system NOT do?
A) Increases heart rate
B) Inhibits salivary gland secretion
C) Promotes hepatic glycogenolysis
D) Increases gastrointestinal tract motility
Answer: D)
70. Blood consists of cells and which intercellular material?
A) Lymph
B) Serum
C) Plasma
D) Synovial fluid
Answer: C)
71. Which vessels carry low-oxygen blood away from the tissues?
A) Arteries
B) Venules
C) Veins
D) Capillaries
Answer: C)
72. What is the main function of the foramen ovale in fetal circulation?
A) Connects the right atrium and the left atrium
B) Connects the pulmonary artery and the aorta
C) Connects the placenta to the fetal liver
D) Connects the umbilical vein to the maternal circulation
Answer: A)
73. Which vessels supply oxygenated blood to tissues?
A) Arteries
B) Capillaries
C) Venules
D) Veins
Answer: A)
74. Where does the exchange of nutrients from arterial blood to tissues mainly occur?
A) Arterioles
B) Capillaries
C) Venules
D) Veins
Answer: B)
75. What are the two bypasses utilized in fetal circulation due to nonfunctional fetal lungs?
A) Foramen ovale and umbilical artery
B) Ductus arteriosus and foramen ovale
C) Ductus venosus and umbilical vein
D) Pulmonary artery and aorta
Answer: B)
76. Which of the following substances has the highest permeability across capillaries, according to the provided data?
A) Hemoglobin
B) Glucose
C) Urea
D) Myoglobin
Answer: C)
77. Which structure prevents retrograde lymph flow in the lymphatic vessels?
A) Pericytes
B) Endothelial cells
C) Basement membrane
D) Endothelial valves
Answer: D)
78. Which of the following substances can cross the blood-brain barrier from the blood into the brain?
A) Saturated long-chain fatty acids
B) Albumin
C) Linoleic acid
D) Hemoglobin
Answer: C)
79. Which of the lymphatic ducts is the largest in the body?
A) Right lymphatic duct
B) Thoracic duct
C) Left lymphatic duct
D) Subclavian duct
Answer: B)
80. What is the primary function of the lymphatic system?
A) To transport oxygen to tissues
B) To regulate blood pressure
C) To transport interstitial fluid and large molecules back into the blood circulation
D) To regulate body temperature
Answer: C)
81. Which animals have a modified stomach or no stomach at all among the examples provided?
A) Ruminants
B) Birds
C) Fish
D) Mammals
Answer: C)
82. What regulates digestion and absorption in the gastrointestinal tract?
A) Muscular contractions
B) Hormones and neural control
C) Enzyme secretions
D) Blood pressure
Answer: B)
83. Which digestive organ is not required in agastric animals for the efficient digestion of nutrients?
A) Liver
B) Pancreas
C) Stomach
D) Small intestine
Answer: C)
84. What is the mean retention time (in hours) of food in the digestive tract of a man, according to the provided information?
A) 13
B) 23
C) 43
D) 46
Answer: D)
85. What is the pH range of the stomach in nonruminant mammals?
A) 7.0
B) 5.5 – 6.8
C) 2.5
D) 2.0
Answer: D)
86. Which stomach compartments are present in ruminants?
A) Cardia, fundus, body, pyloric antrum
B) Rumen, reticulum, omasum, abomasum
C) Crop, proventriculus, gizzard
D) Cranial, dorsal, ventral, caudodorsal blind, caudoventral blind sacs
Answer: B)
87. What stimulates the development of the rumen in ruminants?
A) High levels of fiber in the diet
B) Synthesis of AAs and proteins by microbes
C) Consumption of simple-stomached animal milk
D) Lack of suckling reflex in neonates
Answer: A)
88. What is the primary function of the small intestine in mammals and birds?
A) Synthesis of vitamins
B) Absorption of nutrients
C) Fermentation of carbohydrates
D) Production of bile
Answer: B)
89. Which cells constitute more than 85% of the mucosal epithelial cell population in the small intestine?
A) Basal cells
B) Enterocytes
C) Goblet cells
D) Lamina propria cells
Answer: B)
90. What is the primary energy source for colonocytes in the large intestine?
A) Glutamine
B) Acetate
C) Butyrate
D) Propionate
Answer: C)
91. Which group of animals are considered hindgut fermenters?
A) Cattle, sheep, goats
B) Horses, rabbits
C) Chickens, ducks, geese
D) Deer, bison, camels
Answer: B)
92. What is the primary site of fermentation in cecal fermenters?
A) Rumen
B) Colon
C) Cecum
D) Small intestine
Answer: C)
93. What is the role of the large intestine in hindgut fermenters?
A) Absorption of nutrients
B) Synthesis of vitamins
C) Primary site of digestion
D) Fermentation of carbohydrates and proteins
Answer: D)
94. What is the significance of hindgut fermenters in sustainable agriculture?
A) They contribute to milk and meat production.
B) They have a high capacity to digest dietary fiber and plant-source protein.
C) They primarily graze on pasture.
D) They have a larger stomach compared to ruminants.
Answer: B)
95. Which organ in the digestive system synthesizes and releases insulin and glucagon to regulate blood glucose levels?
A) Liver
B) Stomach
C) Pancreas
D) Gallbladder
Answer: C)
96. Which cells in the pancreas are responsible for synthesizing and releasing insulin?
A) α-cells
B) δ-cells
C) β-cells
D) γ-cells
Answer: C)
97. What is the primary function of the liver in the digestive system?
A) Synthesizing and releasing insulin
B) Storing bile
C) Regulating blood glucose levels
D) Metabolism, transport, and storage of nutrients
Answer: D)
98. Which component neutralizes acid from the stomach and increases alkalinity in the small intestine?
A) Proteases
B) Bile salts
C) Sodium carbonate and sodium bicarbonate
D) Lipases
Answer: C)
99. What is the function of the hepatic sinusoids in the liver?
A) Transport oxygen to hepatocytes
B) Exchange nutrients and gases with hepatocytes
C) Store bile
D) Produce bile salts
Answer: B)
100. What characterizes Zone I in the hepatic acinus of the liver?
A) Best oxygenated
B) Poorly oxygenated
C) Transition zone
D) Mid-acinar
Answer: A)
101. Which is the functional unit of the kidney involved in urine formation?
A) Nephron
B) Glomerulus
C) Bowman’s capsule
D) Renal medulla
Answer: A)
102. Where does glomerular filtration primarily occur in the kidney?
A) Renal cortex
B) Renal medulla
C) Bowman’s capsule
D) Renal pelvis
Answer: A)
103. What is the function of the adaptive immune system?
A) Rapid response to invading microbes
B) Lacks specificity and memory
C) Responds specifically to antigens
D) Provides physical barriers against pathogens
Answer: C)
104. Which organ is responsible for the synthesis and secretion of hormones into the body?
A) Liver
B) Pancreas
C) Spleen
D) Endocrine glands
Answer: D)
105. Which sense organ is primarily responsible for olfactory sensations?
A) Eye
B) Ear
C) Nose
D) Skin
Answer: C)
106. Which of the following is NOT a mechanism for regulating enzyme activity?
A) Allosteric regulation
B) pH and temperature changes
C) Competitive inhibition
D) Cell division
Answer: D)
107. What is the primary function of the Krebs cycle in cellular metabolism?
A) ATP synthesis
B) Protein synthesis
C) Lipid breakdown
D) Carbohydrate storage
Answer: A)
108. Which enzyme is involved in the conversion of l-lactate to pyruvate in animal cells?
A) Hexokinase
B) ATP synthase
C) l-lactate dehydrogenase
D) UCP-1
Answer: C)
109. What does the uncoupling protein-1 (UCP-1) primarily do in brown adipose tissue (BAT)?
A) Inhibits ATP synthesis
B) Promotes reactive oxygen species production
C) Facilitates fatty acid oxidation
D) Generates heat without ATP production
Answer: D)
110. Which metabolic pathway involves the formation of citrate from acetyl-CoA and oxaloacetate?
A) Glycolysis
B) Electron transport system
C) Krebs cycle
D) Fatty acid synthesis
Answer: C)
Animal Nutrition MCQs With Answers PDF Free Download
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