Plant Anatomy and Physiology MCQ question and answer with solution

1

In which of the following lake types the surface temperature varies above and below 4° C?

A) Tropical lakes B) Temperate lakes C) Polar lakes D) Both A and C

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Answer: Option B

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2

The reaction centre -P₆₈₀ in non-cyclic electron transport pathway becomes photoexcited and exudes an electron with a gain of energy. The electron then is immediately accepted by

A) Plastoquinone B) Quinone C) Plastocyanine D) Cytochrome b

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Answer: Option B

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3

According to Hanson and Churchill (1965), a community type or abstract community may be defined as

A) A group of stands that are similar in species composition and structure but occupy different habitats B) A group of stands that are dissimilar in species composition and structure but occupy same habitat C) A group of stands that are similar in species composition and structure and occupy similar habitats D) A group of stands that are dissimilar in species composition but similarin structure and occupy similar habitats

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Answer: Option C

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4

Which of the following is an example of iron bacteria?

A) Bactoderma B) Thiothrix C) Hydrogenomonas D) Leptothrix

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Answer: Option D

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5

The reaction of the β-oxidation of fatty acids and the conversion of acetate units of acetyl CoA to glyoxylate and maltate were discovered to take place in microbodies termed as

A) Peroxisomes B) Glyoxysomes C) Microtubules D) Vacuoles

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Answer: Option B

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6

Match List-I (Host plants) with List-II (Disease resistant varieties) and select the correct answer:

List-I	List-II
a. Rice	1. T 41, TKM, CO 26
b. Wheat	2. Coorg and Kents
c. Sugarcane	3. Lermo Rojo, 271-1, 11-8
d. Coffee	4. BO3, COS 561, CO 224

A) a-2, b-3, c-4, d-1 B) a-3, b-2, c-1, d-4 C) a-2, b-1, c-4, d-3 D) a-1, b-3, c-4, d-2

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Answer: Option D

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7

The amount of energy that is available to accomplish work is known as

A) Enthalpy B) Entropy C) Gibbs free energy D) Total internal energy

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Answer: Option C

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8

In a bisexual flower, if androecium and gynoecium mature at different times, the phenomenon is known as

A) Dichogamy B) Herkogamy C) Heterogamy D) Monogamy

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Answer: Option A

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9

Match List-I (Pollutants) with List-II (Pathological effects on man) and select the correct answer:

List-I	List-II
a. Ammonias	1. Cause emphysema, eye irritations and possibly cancer
b. Arsines	2. Inflame upper respiratory passages
c. Carbon monoxides	3. Reduce oxygen carrying capacity of blood
d. Suspended particles (ash, soot, smoke)	4. Break down red cells in blood, damage kidneys, cause jaundice

A) a-2, b-4, c-3, d-1 B) a-3, b-4, c-2, d-1 C) a-2, b-1, c-3, d-4 D) a-4, b-2, c-1, d-3

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Answer: Option A

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10

In biological terms, . . . . . . . . is a relationship between two organisms in which one organism benefits and the other is unaffected?

A) amensalism B) mutualism C) commensalism D) parasitism

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Answer: Option C

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Plant Anatomy and Physiology MCQ question and answer with solution | Biology Gk MCQs