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Morphology of Plant Roots

Types, structures, functions, and adaptations of plant roots in various species including specialized roots like assimilatory, buttress, prop, stilt, clinging, and floating roots

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

What kind of roots are present in Tinospora?

  1. Absorbing roots
  2. Clinging roots
  3. Sucking roots
  4. Assimilatory roots
Question 2 Multiple Choice (Single Answer)

What is the function of velamen tissue?

  1. Floating and balancing
  2. Photosynthesis
  3. Absorption of atmospheric moisture
  4. Absorption of atmospheric air
Question 3 Multiple Choice (Single Answer)

Parasitic plants are able to absorb nutrient from the host due to the presence of

  1. velamen tissue
  2. hustoria
  3. lenticels
  4. rhizodermis
Question 4 Multiple Choice (Single Answer)

Which of the following plants possesses reproductive roots?

  1. Sugarcane
  2. Sweet potato
  3. Cuscuta
  4. Giloy
Question 5 Multiple Choice (Single Answer)

What kind of roots are present in Mangrove plant?

  1. Assimilatory roots
  2. Clinging roots
  3. Sucking roots
  4. Buttress roots
Question 6 Multiple Choice (Single Answer)

White spongy cigar-like floating roots of hydrophytes

  1. remain in water
  2. remain in air
  3. float on water surface
  4. perform photosynthesis
Question 7 Multiple Choice (Single Answer)

The nitrogen-fixing bacteria associated with cereal grasses is

  1. rhizobium
  2. azospirillum species
  3. cyanobacteria
  4. clostridium species
Question 8 Multiple Choice (Single Answer)

The role of fungus in symbiotic association with the plant roots is

  1. disease prevention
  2. nitrogen fixation
  3. immune suppression
  4. bio-luminescence
Question 9 Multiple Choice (Single Answer)

What is peculiar about the roots of garlic? Pick the best option.

  1. They do not have root hairs.
  2. They contract and pull the stem.
  3. They are nodulated.
  4. Both option (1) and (2)
Question 10 Multiple Choice (Single Answer)

Which additional function is performed by floating roots?

  1. Assimilation of food
  2. Absorption of air
  3. Reproduction
  4. Storage of food
Question 11 Multiple Choice (Single Answer)

Prop roots is an example of

  1. tap root
  2. nodulose root
  3. adventitious roots
  4. fibrous root
Question 12 Multiple Choice (Single Answer)

Which of the following statements about the stilt roots is true?

  1. The roots bear a single root cap.
  2. The roots are non-hygroscopic in nature.
  3. The roots provide support to the plant like a pillar.
  4. The roots penetrate vertically to the soil.
Question 13 Multiple Choice (Single Answer)

Which kind of roots are found in orchids?

  1. Climbing
  2. Clinging
  3. Buttress
  4. Stilt
Question 14 Multiple Choice (Single Answer)

Which of the following points about root pocket is true?

  1. They are not regenerated.
  2. They are vestigial root caps.
  3. They are found in aquatic plants.
  4. All the above
Question 15 Multiple Choice (Single Answer)

What does prop roots provide to the plant?

  1. Reproductive support
  2. Mechanical support
  3. Respiratory support
  4. Nutritive support
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