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Test: The Root (NCERT) - NEET MCQ


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10 Questions MCQ Test Biology Class 11 - Test: The Root (NCERT)

Test: The Root (NCERT) for NEET 2024 is part of Biology Class 11 preparation. The Test: The Root (NCERT) questions and answers have been prepared according to the NEET exam syllabus.The Test: The Root (NCERT) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: The Root (NCERT) below.
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Test: The Root (NCERT) - Question 1

Which among the following is an incorrect statement about root?

Detailed Solution for Test: The Root (NCERT) - Question 1
  • The root is covered at the end by a thimble like structure called root cap.
  • Meristematic tissue helps in the growth of plants.
  • Meristematic cells when mature form the so called permanent cells.
  • Root hairs increase the surface area which helps in increasing the levels of water absorption.
Test: The Root (NCERT) - Question 2

Which among the following is incorrect about the modifications in roots?

Detailed Solution for Test: The Root (NCERT) - Question 2
  • Roots undergo modifications to perform conduction of water and minerals.
  • Prop roots help in anchoring banyan tree to the ground.
  • Pneumatophores are present in Rhizopora that help them to respire easily.
  • Tap roots in turnip and carrot store food in their roots.
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Test: The Root (NCERT) - Question 3

Select the mismatched pair.

Detailed Solution for Test: The Root (NCERT) - Question 3

Fasciculated fleshy roots are modified adventitious roots, in which swollen roots or root tubers occur in clusters from lower nodes of stem example, Dahlia and Asparagus. In Curcuma, nodulose roots are found where the swelling occur only near the tips.

Test: The Root (NCERT) - Question 4

Which of the following statements is correct with respect to the given figure showing different zones of a typical root?

Detailed Solution for Test: The Root (NCERT) - Question 4

Part  A is the root hair zone which represents the zone of differentiation or maturation. This is the most suitable part for anatomical studies of root because different types of primary tissues differentiate or mature in this region. Xylem, phloem, pericycle, endodermis, cortex and epilema are clearly visible in this region.

Test: The Root (NCERT) - Question 5

Which among the following is incorrect about shoot system?

Detailed Solution for Test: The Root (NCERT) - Question 5
  1. Aerial roots are a part of shoot system - This statement is incorrect. Aerial roots are specialized structures that come from the shoot system but are still considered roots, not shoots. They are used for support and sometimes for photosynthesis or absorbing moisture from the air, but they are not part of the shoot system.

  2. The portion of a plant that grows above the soil is called shoot system - This is generally correct. The shoot system usually refers to the parts of the plant that are above ground.

  3. Shoot system comprises leaves, branches, flowers, and fruits - This is correct. All these structures are part of the shoot system and are involved in the growth and reproductive processes of the plant.

  4. The shoot system develops from the plumule - This is correct. In the embryonic stage of a seed, the plumule is the part that develops into the shoot system after germination.

Therefore, the incorrect statement about the shoot system is: Aerial roots are a part of shoot system.

Test: The Root (NCERT) - Question 6

Which among the following is incorrect about tap root and fibrous root?

Detailed Solution for Test: The Root (NCERT) - Question 6
  • Tap root grows deep into the soil.
  • Fibrous root grows laterally in the soil.
  • In tap root system, one primary root and more than one secondary root is present.
  • Most of the dicotyledons adopt tap root system.
Test: The Root (NCERT) - Question 7

Root cap has no role in water absorption because:

Detailed Solution for Test: The Root (NCERT) - Question 7

The root cap's primary function is to protect the apical meristem (growth tissue) at the root tip as the root pushes through the soil. It plays no direct role in water absorption primarily because: It has no root hairs. Root hairs, which are extensions of root epidermal cells, are key structures in water and nutrient absorption from the soil. They are not found on the root cap but rather in the zone of maturation, which is located behind the zone of elongation and the root cap.

Test: The Root (NCERT) - Question 8

Identify the type of modified root and select the statement regarding this.

Detailed Solution for Test: The Root (NCERT) - Question 8

Given figure is of fasciculated root, which is the modified adventitious root that stores food material.

Test: The Root (NCERT) - Question 9

The root hair are visible in ___________ region of the root.

Detailed Solution for Test: The Root (NCERT) - Question 9

The zone of maturation has very fine thread-like structures known as root hair. These help in the absorption of water and minerals from the soil.

Test: The Root (NCERT) - Question 10

The region or zone of elongation of root is found

Detailed Solution for Test: The Root (NCERT) - Question 10

The zone of elongation is a region located behind the root tip, where the newly formed cells from the root apical meristem undergo rapid elongation. In this region, the cells elongate and increase in length, pushing the root tip forward and causing the root to grow in length.

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