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

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41.
The type of anatomy where a single layer of bundle sheath cells around the vascular bundle is surrounded by a loosely packed layer of mesophyll cells is known as

A. Vascular anatomy

B. Kranz anatomy

C. Secondary anatomy

D. Anomalous anatomy

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42.
Osmosis is defined as

A. diffusion of solvent (water) through a semipermeable membrane from less concentrated solution to more concentrated solution

B. flow of solute from a semipermeable membrane

C. flow of water without a membrane

D. diffusion of suspended particle from higher to lower concentration

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43.
The causal organism of loose smut of wheat is

A. Ustilago tritici

B. Erysiphe cichoracearum

C. Peziza vesiculosa

D. Peziza aurantia

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44.
Artificial light can

A. Destroy chlorophyll

B. Synthesise chlorophyll

C. Bring about photosynthesis

D. Not bring about photosynthesis

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45.
When the anthropogenic formation is controlled by biotic factors, then the climax is generally called as

A. Ecotype

B. Biome

C. Niche

D. Phytocenose

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46.
Which of the following due to a disease is permanent and eventually leads to death of the plant?

A. Sclerotia formation

B. Lesions

C. Cankers

D. Wilting

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47.
Which of the following species is supposed to have been the remnants of a once widely distributed taxon in the past?

A. Ginkgo biloba

B. Chenopodium album

C. Trapa natans

D. Both A and C

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48.
The most active light for photosynthesis is

A. Violet light

B. Red light

C. Blue light

D. Green light

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49.
The active center pigment for photo-system I consists of chlorophyll a, which absorbs at

A. 700 nm and is called P₆₈₀

B. 680 nm and is called P₆₈₃

C. 682 nm and is called P₇₀₀

D. 703 nm and is called P₇₀₀

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50.
Which of the following pollutants causes yellowing and occasional necrosis of leaves, chlorosis of floral buds, inhibition of apical growth, equinasty of leaves, reduced growth and lack of apical dominance ?

A. Sulphur dioxide

B. Ethylene

C. Smog

D. Aerosol

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

41. The type of anatomy where a single layer of bundle sheath cells around the vascular bundle is surrounded by a loosely packed layer of mesophyll cells is known as

Answer & Solution

42. Osmosis is defined as

Answer & Solution

43. The causal organism of loose smut of wheat is

Answer & Solution

44. Artificial light can

Answer & Solution

45. When the anthropogenic formation is controlled by biotic factors, then the climax is generally called as

Answer & Solution

46. Which of the following due to a disease is permanent and eventually leads to death of the plant?

Answer & Solution

47. Which of the following species is supposed to have been the remnants of a once widely distributed taxon in the past?

Answer & Solution

48. The most active light for photosynthesis is

Answer & Solution

49. The active center pigment for photo-system I consists of chlorophyll a, which absorbs at

Answer & Solution

50. Which of the following pollutants causes yellowing and occasional necrosis of leaves, chlorosis of floral buds, inhibition of apical growth, equinasty of leaves, reduced growth and lack of apical dominance ?

Answer & Solution

Read More Section(Plant Anatomy and Physiology)

41.
The type of anatomy where a single layer of bundle sheath cells around the vascular bundle is surrounded by a loosely packed layer of mesophyll cells is known as

42.
Osmosis is defined as

43.
The causal organism of loose smut of wheat is

44.
Artificial light can

45.
When the anthropogenic formation is controlled by biotic factors, then the climax is generally called as

46.
Which of the following due to a disease is permanent and eventually leads to death of the plant?

47.
Which of the following species is supposed to have been the remnants of a once widely distributed taxon in the past?

48.
The most active light for photosynthesis is

49.
The active center pigment for photo-system I consists of chlorophyll a, which absorbs at

50.
Which of the following pollutants causes yellowing and occasional necrosis of leaves, chlorosis of floral buds, inhibition of apical growth, equinasty of leaves, reduced growth and lack of apical dominance ?