Biology (School & UG)
Q. Which part of the flower is responsible for producing ovules?
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A.
Stamen
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B.
Pistil
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C.
Petal
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D.
Sepal
Solution
The pistil is the female reproductive part of the flower that produces ovules.
Correct Answer: B — Pistil
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Q. Which part of the flower is responsible for producing pollen?
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A.
Stigma
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B.
Style
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C.
Anther
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D.
Ovary
Solution
The anther is the part of the stamen that produces and contains pollen.
Correct Answer: C — Anther
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Q. Which part of the heart is responsible for pumping blood to the lungs?
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A.
Left atrium
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B.
Right atrium
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C.
Left ventricle
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D.
Right ventricle
Solution
The right ventricle pumps deoxygenated blood to the lungs for oxygenation.
Correct Answer: D — Right ventricle
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Q. Which part of the heart is responsible for pumping oxygenated blood to the body?
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A.
Right atrium
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B.
Left atrium
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C.
Right ventricle
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D.
Left ventricle
Solution
The left ventricle is responsible for pumping oxygenated blood to the body.
Correct Answer: D — Left ventricle
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Q. Which part of the human digestive system is primarily involved in water absorption?
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A.
Stomach
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B.
Small intestine
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C.
Large intestine
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D.
Esophagus
Solution
The large intestine is primarily responsible for the absorption of water from indigestible food matter.
Correct Answer: C — Large intestine
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Q. Which part of the plant is often used to extract essential oils that have antimicrobial properties?
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A.
Roots
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B.
Leaves
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C.
Flowers
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D.
Seeds
Solution
Leaves are commonly used to extract essential oils known for their antimicrobial properties.
Correct Answer: B — Leaves
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Q. Which part of the plant is primarily responsible for nutrient transport?
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A.
Xylem
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B.
Phloem
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C.
Cortex
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D.
Pith
Solution
Phloem is responsible for the transport of nutrients and sugars throughout the plant.
Correct Answer: B — Phloem
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Q. Which part of the plant is primarily responsible for photosynthesis?
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A.
Roots
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B.
Stems
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C.
Leaves
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D.
Flowers
Solution
Leaves contain chlorophyll and are the main site of photosynthesis in plants.
Correct Answer: C — Leaves
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Q. Which part of the plant is primarily responsible for the absorption of water and nutrients?
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A.
Stem
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B.
Leaf
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C.
Root
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D.
Flower
Solution
The root system is responsible for the absorption of water and nutrients from the soil.
Correct Answer: C — Root
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Q. Which part of the plant is primarily responsible for the production of medicinal alkaloids?
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A.
Roots
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B.
Leaves
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C.
Flowers
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D.
Bark
Solution
Leaves are often the primary site for the synthesis of many medicinal alkaloids.
Correct Answer: B — Leaves
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Q. Which part of the plant is primarily responsible for water absorption?
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A.
Leaves
-
B.
Stems
-
C.
Roots
-
D.
Flowers
Solution
Roots are primarily responsible for water absorption and nutrient uptake from the soil.
Correct Answer: C — Roots
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Q. Which part of the plant is primarily responsible for water and nutrient uptake?
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A.
Stem
-
B.
Leaf
-
C.
Root
-
D.
Flower
Solution
Roots are specialized for absorbing water and nutrients from the soil.
Correct Answer: C — Root
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Q. Which part of the respiratory system is responsible for the actual exchange of gases?
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A.
Bronchi
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B.
Alveoli
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C.
Trachea
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D.
Larynx
Solution
The alveoli are tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide occurs.
Correct Answer: B — Alveoli
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Q. Which pathogen is known for causing a severe form of gastroenteritis, particularly in children?
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A.
Norovirus
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B.
Clostridium difficile
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C.
Salmonella enterica
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D.
Escherichia coli O157:H7
Solution
Norovirus is a leading cause of gastroenteritis outbreaks, especially in children, due to its high transmissibility and low infectious dose.
Correct Answer: A — Norovirus
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Q. Which pathogen is known for causing foodborne illness through contaminated poultry?
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A.
Salmonella
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B.
Listeria
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C.
E. coli
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D.
Clostridium botulinum
Solution
Salmonella is a common cause of foodborne illness, often associated with undercooked poultry.
Correct Answer: A — Salmonella
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Q. Which pathogen is known for causing the most severe form of viral gastroenteritis in children?
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A.
Rotavirus
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B.
Norovirus
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C.
Adenovirus
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D.
Enterovirus
Solution
Rotavirus is the leading cause of severe viral gastroenteritis in children, leading to dehydration and hospitalization.
Correct Answer: A — Rotavirus
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Q. Which pathogen is known to cause cholera?
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A.
Vibrio cholerae
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B.
Salmonella enterica
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C.
Clostridium botulinum
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D.
Listeria monocytogenes
Solution
Vibrio cholerae is the bacterium that causes cholera, leading to severe diarrhea and dehydration.
Correct Answer: A — Vibrio cholerae
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Q. Which pathogen is known to cause the disease known as 'flesh-eating disease'?
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A.
Clostridium perfringens
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B.
Streptococcus pyogenes
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C.
Vibrio cholerae
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D.
Listeria monocytogenes
Solution
Streptococcus pyogenes is associated with necrotizing fasciitis, commonly referred to as 'flesh-eating disease'.
Correct Answer: B — Streptococcus pyogenes
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Q. Which phase of the menstrual cycle is characterized by the thickening of the endometrium?
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A.
Follicular phase
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B.
Ovulation
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C.
Luteal phase
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D.
Menstrual phase
Solution
The follicular phase is characterized by the thickening of the endometrium in preparation for potential implantation.
Correct Answer: A — Follicular phase
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Q. Which phase of the menstrual cycle is characterized by the thickening of the uterine lining?
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A.
Follicular phase
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B.
Ovulation phase
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C.
Luteal phase
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D.
Menstrual phase
Solution
The luteal phase is characterized by the thickening of the uterine lining in preparation for potential implantation.
Correct Answer: C — Luteal phase
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Q. Which phase of the plant life cycle is characterized by the formation of gametes?
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A.
Sporophyte
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B.
Gametophyte
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C.
Seedling
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D.
Mature plant
Solution
The gametophyte phase is where gametes are produced in the plant life cycle.
Correct Answer: B — Gametophyte
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Q. Which phase of the plant life cycle is haploid?
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A.
Sporophyte
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B.
Gametophyte
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C.
Zygote
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D.
Seedling
Solution
The gametophyte phase is haploid, producing gametes for fertilization.
Correct Answer: B — Gametophyte
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Q. Which phytochemical found in cruciferous vegetables is linked to cancer prevention?
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A.
Glucosinolates
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B.
Carotenoids
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C.
Polyphenols
-
D.
Terpenes
Solution
Glucosinolates, found in cruciferous vegetables like broccoli, are associated with cancer prevention.
Correct Answer: A — Glucosinolates
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Q. Which phytochemical is known for its potential anti-cancer properties and is found in cruciferous vegetables?
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A.
Glucosinolates
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B.
Carotenoids
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C.
Polyphenols
-
D.
Flavonoids
Solution
Glucosinolates, found in cruciferous vegetables like broccoli, have been studied for their anti-cancer effects.
Correct Answer: A — Glucosinolates
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Q. Which phytochemical is known for its potential anti-cancer properties?
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A.
Resveratrol
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B.
Chlorophyll
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C.
Starch
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D.
Cellulose
Solution
Resveratrol, found in grapes and berries, has been studied for its anti-cancer effects.
Correct Answer: A — Resveratrol
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Q. Which phytochemical is known for its role in cancer prevention?
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A.
Carotenoids
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B.
Starch
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C.
Proteins
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D.
Lipids
Solution
Carotenoids, found in colorful fruits and vegetables, are linked to cancer prevention.
Correct Answer: A — Carotenoids
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Q. Which phytochemical is responsible for the anti-cancer properties of cruciferous vegetables?
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A.
Glucosinolates
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B.
Alkaloids
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C.
Terpenes
-
D.
Saponins
Solution
Glucosinolates found in cruciferous vegetables are linked to cancer prevention.
Correct Answer: A — Glucosinolates
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Q. Which phytochemical is responsible for the color of many fruits and vegetables and has health benefits?
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A.
Chlorophyll
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B.
Carotenoids
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C.
Starch
-
D.
Cellulose
Solution
Carotenoids are responsible for the vibrant colors in fruits and vegetables and have antioxidant properties.
Correct Answer: B — Carotenoids
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Q. Which phytochemical is responsible for the red color in tomatoes and has health benefits?
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A.
Lycopene
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B.
Carotene
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C.
Chlorophyll
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D.
Flavonoids
Solution
Lycopene is the phytochemical that gives tomatoes their red color and is linked to various health benefits.
Correct Answer: A — Lycopene
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Q. Which pigment is primarily responsible for capturing light energy during photosynthesis?
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A.
Chlorophyll a
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B.
Carotenoids
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C.
Xanthophylls
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D.
Chlorophyll b
Solution
Chlorophyll a is the main pigment that captures light energy for photosynthesis.
Correct Answer: A — Chlorophyll a
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