Tag: identifying the plants

Questions Related to identifying the plants

Number of fine outgrowths present on the surface of roots are called ____

biology identifying the plants absorption of water from the soil root system the root system

  1. root nodes

  2. rootlets

  3. root hairs

  4. tap root

Show answer
Correct Option: C
Explanation:

  • The epidermal cells of the roots give out fine hair-like outgrowths called the root hairs that absorb water and minerals

So, the correct answer of 'root hairs'

Nodulated roots occur in

biology identifying the plants absorption of water from the soil root system the root system

  1. Pea

  2. Wheat

  3. Mustard

  4. Rice

Show answer
Correct Option: A
Explanation:

Pisum sativum, also called pea plant has nodulated roots because they are found in association with a nitrogen-fixing bacterium called Rhizobium. This rhizobium resides in these nodules.

So, the correct option is 'Pea'.

Vegetative organs of plants are:

biology identifying the plants absorption of water from the soil root system the root system

  1. leaves, stem, roots

  2. flower, stem, leaves

  3. flower, fruit, seeds

  4. root, fruit, flower

Show answer
Correct Option: A
Explanation:

  • Vegetative parts of the plant include roots, stem, leaves 

So, the correct answer is 'leaves, stem, and roots

State whether the following statement is true or false.

Hydrotropism is important for plants.

biology identifying the plants absorption of water from the soil root system the root system

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

The ability to bend and growing the root towards a moisture gradient is essential because plants need water to grow. Water, together with soluble mineral nutrients, is taken up by the root hairs. Then, in vascular plants, water and minerals are transported to all parts of a plant through a lignified transport system called as xylem. The second transport system in vascular plants is called as phloem. The phloem also carries water, not with soluble minerals, but mainly with soluble organic nutrients instead. These organic nutrients are delivered by photosynthesis and are called as photosynthate. 

So, the correct answer is 'True'.

Primary roots and its branches constitutes to

biology identifying the plants absorption of water from the soil root system the root system

  1. Adventitious root system

  2. Tap root system

  3. Fibrous roots

  4. Seminal roots

Show answer
Correct Option: B
Explanation:

A. Adventitious roots are the roots which are produced from other plant parts like stems, leaves etc.

B. Taproot system is the root system where the root develops from the radicle producing primary roots and its branches secondary roots. Here the radicle persists.
C. Fibrous roots are the roots which are short and appear as a bunch when the radicle is absent.
D. Seminal roots are temporary roots which are present during ungerminated caryopsis.
So, the correct answer is 'Tap root system'.

Root cap takes part in

biology identifying the plants absorption of water from the soil root system the root system

  1. Formation of new cells

  2. Absorption of water and minerals

  3. Protection of root meristem

  4. Storage of food

Show answer
Correct Option: C
Explanation:

Root cap takes part in the protection of root meristem because it is the layer separating the meristem from the external forces. It protects the tender apex while root makes its way into the soil.

So, the correct option is 'Protection of root meristem'.