1. Which type of nutrition involves the ability to
produce organic molecules from inorganic sources?
a)
Autotrophic nutrition
b) Heterotrophic nutrition
c) Both a and b
d) None of the above
2 What is the primary pigment responsible for
photosynthesis in plants?
a)
Chlorophyll
b) Carotenoids
c) Xanthophylls
d) Anthocyanins
3. Which organelle in plant cells is responsible for photosynthesis?
a) Mitochondria
b) Nucleus
c)
Chloroplast
d) Endoplasmic reticulum
4. Which of the following is an example of a
heterotrophic plant?
a) Grass
b) Sunflower
c)
Venus flytrap
d) Algae
5. In heterotrophic nutrition, plants obtain organic
nutrients through:
a) Absorption of nutrients through roots
b) Photosynthesis
c)
Ingestion of other organisms
d) Synthesis of nutrients from inorganic molecules
6. Which of the following is NOT a mode of autotrophic
nutrition?
a) C3 photosynthesis
b) C4 photosynthesis
c) CAM photosynthesis
d)
Phagocytosis
7. Which process involves the breakdown of glucose to
release energy in plant cells?
a) Photosynthesis
b)
Respiration
c) Transpiration
d) Fermentation
8. Carnivorous plants primarily obtain nutrients such as
nitrogen and phosphorus from:
a)
Soil
b) Air
c) Rainwater
d) Sunlight
9. Which of the following is an example of an autotrophic
plant?
a) Mushroom
b) Fern
c)
Oak tree
d) Yeast
10. Which type of nutrition is essential for plant growth
and development?
a)
Autotrophic nutrition
b) Heterotrophic nutrition
c) Both are equally important
d) Neither is important for plants
11. What is the primary mode of nutrition in green plants?
a) Heterotrophic nutrition
b)
Autotrophic nutrition
c) Parasitic nutrition
d) Saprophytic nutrition
12. In photosynthesis, which pigment is primarily
responsible for capturing light energy?
a)
Chlorophyll
b) Carotenoids
c) Xanthophylls
d) Anthocyanins
13. Which of the following processes involves the
breakdown of glucose to release energy in plant cells?
a) Photosynthesis
b)
Respiration
c) Transpiration
d) Osmosis
14. What is the function of the stomata in plant leaves?
a) Absorbing sunlight
b) Facilitating transpiration
c) Regulating water uptake
d)
Exchanging gases (such as CO2 and O2) with the
environment
15. Which of the following nutrients is considered a
micronutrient for plants?
a) Nitrogen
b) Phosphorus
c) Magnesium
d)
Zinc
16. What type of plants obtain their nutrients by trapping
and digesting insects and other small organisms?
a) Carnivorous plants
b) Epiphytic plants
c) Mycorrhizal plants
d) Parasitic plants
17. Which part of the plant primarily absorbs water and
minerals from the soil?
a) Leaves
b)
Roots
c) Stems
d) Flowers
18. What is the process by which water and nutrients move
from the roots to the rest of the plant through specialized tissues called
xylem?
a) Transpiration
b) Photosynthesis
c)
Translocation
d) Phloem
19. Which of the following is NOT a factor that affects
the rate of photosynthesis in plants?
a) Temperature
b) Light intensity
c)
Oxygen concentration
d) Carbon dioxide concentration
20. What type of plants obtain nutrients by attaching
themselves to host plants and tapping into their vascular system?
a) Autotrophic plants
b)
Heterotrophic plants
c) Carnivorous plants
d) Epiphytic plants
21. Which of the following is a common example of a
parasitic plant that attaches to the roots of other plants to obtain nutrients?
a) Sunflower
b) Orchid
c)
Dodder
d) Venus flytrap
22. The process by which some parasitic plants produce
specialized structures called haustoria to connect to their host plants is
called:
a) Photosynthesis
b) Mycorrhizal association
c) Grafting
d)
Haustorial connection
23. Which type of animal parasite lives outside its host's
body?
a) Endoparasite
b)
Ectoparasite
c) Parasitoid
d) Commensal parasite
24. What is the term for an organism that spends a
significant portion of its life cycle inside a host and eventually kills the
host?
a) Ectoparasite
b)
Endoparasite
c) Mutualistic parasite
d) Free-living parasite
25. Malaria is caused by a parasitic protozoan called
Plasmodium and is transmitted to humans through the bite of infected
mosquitoes. In this relationship, the mosquito is acting as a:
a) Host
b) Mutualistic parasite
c) Intermediate host
d)
Vector
26. Which of the following is a parasitic worm that
commonly infects the human digestive system?
a)
Tapeworm
b) Earthworm
c) Leech
d) Nematode
27. What term is used for a relationship between two
species in which one benefits (the parasite) at the expense of the other (the
host)?
a) Symbiosis
b) Mutualism
c) Commensalism
d)
Parasitism
28. Which essential mineral nutrient is primarily
responsible for the green color of plant leaves?
a. Nitrogen
b. Phosphorus
c. Potassium
d.
Iron
29. What is the function of magnesium (Mg) in plant
nutrition?
a.
Promotes
root growth
b. Essential for chlorophyll formation
c.
Enhances
flowering
d.
Increases
fruit size
30. Which macronutrient is known for its role in
strengthening plant cell walls?
a.
Calcium
b. Zinc
c. Manganese
d. Copper
31. Leguminous plants have a unique ability to fix
atmospheric nitrogen with the help of:
a.
Rhizobium bacteria
b. Mycorrhizal fungi
c. Nitrosomonas bacteria
d. Actinomycetes
32. What is the primary function of sulfur (S) in plants?
a. Aids in photosynthesis
b. Helps in water transport
c.
Component of amino acids and proteins
d. Enhances root development
33. Which mineral is essential for the formation of
hemoglobin in red blood cells?
a. Calcium
b.
Iron
c. Sodium
d. Potassium
34. The deficiency of iodine in the diet can lead to which
condition?
a. Rickets
b.
Goiter
c. Osteoporosis
d. Anemia
35. Which mineral is crucial for maintaining proper nerve
function and muscle contraction in animals?
a.
Magnesium
b. Zinc
c. Copper
d. Manganese
36. What is the primary function of calcium in animal
nutrition?
a.
Aids in blood clotting
b. Enhances immunity
c. Facilitates digestion
d. Promotes bone growth
37. Which mineral is an essential component of thyroid
hormones?
a. Iron
b.
Selenium
c. Potassium
d. Phosphorus
38. What is the primary function of the digestive system
in animals?
a) Respiration
b) Circulation
c) Reproduction
d) Breakdown of food and absorption of
nutrients
39. Which of the following is not a component of the human
digestive system?
a) Stomach
b) Liver
c)
Spleen
d) Small intestine
40. In which part of the digestive system does the
majority of nutrient absorption take place?
a) Mouth
b) Stomach
c) Large intestine
d)
Small intestine
41. Which enzyme is responsible for the digestion of
proteins in the stomach?
a) Amylase
b) Lipase
c)
Pepsin
d) Trypsin
42. What is the function of bile in the digestive process?
a) Breaks down proteins
b)
Emulsifies fats
c) Converts carbohydrates to glucose
d) Produces enzymes
43. Where does most of the water absorption occur in the
digestive system?
a) Small intestine
b) Stomach
c)
Large intestine
d) Esophagus
44. Which of the following is a fat-soluble vitamin?
a) Vitamin C
b) Vitamin B12
c)
Vitamin D
d) Vitamin B6
45. What is the term for the process of breaking down food
into smaller molecules that can be absorbed by the body?
a)
Digestion
b) Absorption
c) Assimilation
d) Metabolism
46. Which organ stores and releases bile into the small
intestine to aid in digestion?
a) Liver
b) Stomach
c) Pancreas
d) Gallbladder
47. What is the main function of the large intestine in
the digestive system?
a) Absorption of nutrients
b) Mechanical digestion of food
c) Storage of food
d)
Absorption of water and formation of feces
48. What is the primary function of carbohydrates in the
human body?
a)
Energy storage
b) Structural support
c) Enzyme production
d) Oxygen transport
49. Which carbohydrate is commonly known as blood sugar
and serves as a major source of energy for cells?
a)
Glucose
b) Fructose
c) Sucrose
d) Lactose
50. Which type of carbohydrate is found in foods like
pasta, bread, and rice and serves as a long-term energy storage molecule in
plants?
a) Monosaccharides
b) Disaccharides
c) Polysaccharides
d) Oligosaccharides
51. What is the main function of dietary fiber, a type of
carbohydrate?
a) Providing quick energy
b)
Aiding in digestion and preventing constipation
c) Promoting muscle growth
d) Facilitating neurotransmission
52. Which enzyme is responsible for breaking down complex
carbohydrates into simpler sugars during digestion?
a)
Amylase
b) Protease
c) Lipase
d) Nuclease
53. In which organ of the human body is insulin produced,
which regulates blood sugar levels?
a) Liver
b) Stomach
c)
Pancreas
d) Kidney
54. Which of the following is a common source of simple
carbohydrates in the diet?
a) Brown rice
b) Whole-grain bread
c)
Soda
d) Lentils
55. What is the recommended daily intake of carbohydrates
as a percentage of total caloric intake in a balanced diet?
a) 5-10%
b) 20-30%
c)
40-50%
d) 60-70%
56. Which carbohydrate is stored in the muscles and liver for
quick energy release during physical activity?
a) Cellulose
b)
Glycogen
c) Maltose
d) Ribose
57. Which health condition is associated with consistently
high blood sugar levels and is commonly linked to carbohydrate metabolism?
a) Hypertension
b) Osteoporosis
c)
Diabetes mellitus
d) Asthma
58. What is the primary role of proteins in nutrition?
a) Providing energy
b)
Supporting growth and repair
c) Regulating body temperature
d) Facilitating digestion
59. Which of the following is not a function of dietary
proteins?
a) Enzyme production
b) Transporting oxygen
c) Building and repairing tissues
d)
Storing excess energy
60. Which nutrient is essential for the synthesis of most
proteins in the body?
a) Carbohydrates
b) Fats
c)
Amino acids
d) Vitamins
61. Proteins are composed of:
a) Nucleotides
b)
Amino acids
c) Fatty acids
d) Simple sugars
62. What is the term for a protein that speeds up chemical
reactions in the body?
a) Carbohydrate
b) Lipid
c)
Enzyme
d) Vitamin
63. Which of the following is a complete protein source,
meaning it contains all essential amino acids in adequate amounts?
a) Rice
b) Beans
c)
Chicken
d) Nuts
64. What happens when the body consumes more protein than
it needs for growth and repair?
a) It is stored as fat
b)
It is excreted as waste
c) It is converted to carbohydrates
d) It enhances brain function
65. Kwashiorkor is a condition primarily caused by:
a)
Protein deficiency
b) Vitamin deficiency
c) Iron deficiency
d) Carbohydrate deficiency
66. Which of the following foods is a good source of
plant-based proteins?
a) Salmon Fish
b) Eggs
c)
Tofu
d) Beef
67. What is the recommended daily intake of protein for
the average adult?
a) 10-20 grams
b)
50-75 grams
c) 100-150 grams
d) 200-300 grams
68. What is the primary function of dietary fats in the
human body?
a) Providing quick energy
b) Building muscle mass
c) Insulating the body
d)
Supporting cell structure and function
69. Which of the following is not a type of dietary fat?
a) Saturated fat
b) Monounsaturated fat
c) Trans fat
d)
Simple sugar
70. Which type of fat is generally considered unhealthy
and is associated with an increased risk of heart disease?
a) Unsaturated fat
b) Saturated fat
c)
Trans fat
d) Omega-3 fatty acids
71. Essential fatty acids, such as omega-3 and omega-6,
are important for the body because:
a) They provide the most energy per gram
b)
The body cannot produce them and must obtain them from
the diet
c) They are the primary storage form of energy
d) They are involved in muscle contraction
72. Which fat-soluble vitamin is essential for calcium
absorption and bone health?
a) Vitamin A
b) Vitamin C
c)
Vitamin D
d) Vitamin K
73. High-density lipoprotein (HDL) is often referred to as
"good cholesterol" because it:
a) Promotes the formation of arterial plaques
b)
Carries cholesterol away from the arteries to the liver
for processing and removal
c) Lowers blood pressure
d) Increases the risk of heart disease
74. Which of the following foods is a good source of
healthy, unsaturated fats?
a) Butter
b)
Avocado
c) Bacon
d) Whole milk
75. What is the recommended daily intake of total fat as a
percentage of total daily calories for a healthy adult?
a) Less than 10%
b)
20-30%
c) 40-50%
d) More than 70%
76. Which of the following statements about fat digestion
is true?
a) Fat is primarily digested in the stomach
b) Bile is produced by the pancreas to aid in fat
digestion
c) Lipases are enzymes that break down fats
into fatty acids and glycerol
d) Fat is absorbed directly into the bloodstream
77. The main source of dietary fats in a vegetarian diet
is often:
a) Red meat
b) Fish
c)
Plant-based oils and nuts
d) Dairy products
78. Which of the following vitamins is essential for the
formation of collagen, a protein crucial for skin, bones, and connective
tissues?
a) Vitamin A
b)
Vitamin C
c) Vitamin D
d) Vitamin E
79. Vitamin K plays a significant role in:
a)
Blood clotting
b) Maintaining healthy vision
c) Calcium absorption
d) Energy production
80. Which vitamin is essential for the absorption of
calcium and phosphate in the intestines, promoting bone health?
a) Vitamin A
b) Vitamin B12
c)
Vitamin D
d) Vitamin K
81. Vitamin B12 is primarily involved in:
a) Blood clotting
b)
Energy metabolism
c) Maintaining healthy skin
d) Antioxidant protection
82. Which vitamin is an antioxidant, helping to protect
cells from damage caused by free radicals?
a)
Vitamin A
b) Vitamin C
c) Vitamin D
d) Vitamin K
83. Vitamin E is known for its role in:
a) Blood clotting
b) Collagen formation
c) Immune system support
d)
Protecting cell membranes from oxidative damage
84. Which vitamin deficiency can lead to the disease known
as scurvy, characterized by bleeding gums and fatigue?
a) Vitamin A deficiency
b) Vitamin B12 deficiency
c)
Vitamin C deficiency
d) Vitamin D deficiency
85. Vitamin A is essential for:
a) Blood clotting
b)
Healthy vision
c) Energy metabolism
d) Calcium absorption
86. Vitamin B6 is important for:
a)
Formation of red blood cells
b) Skin health
c) Wound healing
d) Regulation of body temperature
87. Which vitamin is often called the "sunshine
vitamin" because the body can produce it when exposed to sunlight?
a) Vitamin A
b) Vitamin B12
c)
Vitamin D
d) Vitamin K
88. Which of the following nutrients is essential for the
transport of nutrients, digestion, and temperature regulation in the human
body?
a) Carbohydrates
b) Proteins
c)
Water
d) Fats
89. Calcium is primarily important for:
a) Muscle contraction
b) Blood clotting
c) Nerve function
d) All of the above
90. Which mineral is crucial for the formation and
maintenance of healthy bones and teeth?
a) Iron
b) Magnesium
c)
Calcium
d) Potassium
91. The mineral responsible for the production of
hemoglobin in red blood cells is:
a)
Iron
b) Sodium
c) Potassium
d) Zinc
92. Which mineral is vital for the proper functioning of
muscles and the transmission of nerve impulses?
a) Sodium
b) Potassium
c) Magnesium
d) Phosphorus
93. Which of the following is NOT a function of water in
the human body?
a) Lubricating joints
b) Aiding in digestion
c)
Providing energy
d) Regulating body temperature
94. The recommended daily intake of calcium is highest for
which group of individuals?
a)
Infants and toddlers
b) Children and teenagers
c) Adults
d) Elderly individuals
95. Minerals required by the body in smaller amounts
compared to macronutrients like carbohydrates and proteins are known as:
a)
Micronutrients
b) Macronutrients
c) Fiber
d) Enzymes
96. Which mineral is essential for the synthesis of DNA,
RNA, and ATP (adenosine triphosphate) in the body?
a) Iron
b) Zinc
c) Magnesium
d)
Phosphorus
97. The primary source of dietary calcium is found in:
a) Fruits and vegetables
b)
Dairy products
c) Meat and poultry
d) Grains and cereals
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