Tag: biology

Questions Related to biology

The stem of the plant when cut and dipped in the water helps in the transport of 

biology types and parts of plants leaves root, stem, and leaves basics of roots and stem

  1. Water

  2. Minerals

  3. Food

  4. All of the above

Show answer
Correct Option: D
Explanation:

Stem contains special complex permanent tissues called xylem. The xylem helps in the conduction and transportation of water in one direction that is from stem to leaves. 

So the correct option is 'Water and minerals'.

The plants with weak stem growing by spreading on the ground are 

biology types and parts of plants leaves root, stem, and leaves basics of roots and stem

  1. Creepers

  2. Runners

  3. Climbers

  4. None of the above

Show answer
Correct Option: A
Explanation:

  1. Creeper is considered to be the plant that grows along the ground, by means of extending stem or branches and produce fiber-like roots that arise from the base of the stem and such weak stem are called prostrate stem.
  2. Runners are the stem that grows on the ground that forms adventitious roots and able to give rise to a new plant.
  3. Climbers are the plants that climb up other plant or object by the help of tendrils.
So the correct option is 'Creepers'

The water and minerals are conducted by the stem to which part/s of the plant?

biology types and parts of plants leaves root, stem, and leaves basics of roots and stem

  1. Leaves

  2. Flowers

  3. Buds

  4. All of the above

Show answer
Correct Option: D
Explanation:
Stem conducts the water and minerals from the root at the site of absorption to the leaves and other parts of a plant with the help of vascular bundles called xylem.
So, the correct option is 'All of the above'

The stem was cut and dipped in water and red ink and colour of the leaves became red due to 

biology types and parts of plants leaves root, stem, and leaves basics of roots and stem

  1. The absorption of red ink by the leaves from the water

  2. The conduction of water and ink by the stem

  3. The loss of green colour from the leaves

  4. None of the above

Show answer
Correct Option: B
Explanation:

This experiment is done to check the movement of water in stem in which ink is mixed with water and the stem is left in the mixture and after an hour we observe the stem and it shows that the ink is present inside the stem shows that the stem conducted the water and the ink, as well as the colored ink patches, are observing it proves that  the xylem and its elements help stem to conduct the water.

So the correct option is 'The conduction of water and ink by the stem'

Axillary buds develop

biology types and parts of plants leaves root, stem, and leaves basics of roots and stem

  1. Endogenously from plerome

  2. Endogenously from pericycle

  3. Exogenously from outer cortex

  4. Exogenously from epidermis

Show answer
Correct Option: C
Explanation:
Axillary buds develop from the outside, that is exogenously from outer layers of the cortex.
So, the correct answer is 'Exogenously from outer cortex'

Which is not a characteristic feature of the stem?

biology types and parts of plants leaves root, stem, and leaves basics of roots and stem

  1. Arises from plumule and is ascending

  2. Growing apex is having a bud

  3. Hairs are multicellular

  4. Branches arise endogenously

Show answer
Correct Option: A

Primary phloem, secondary phloem, internal phloem and included phloem, occur in the stem of ______________.

biology types and parts of plants leaves root, stem, and leaves basics of roots and stem

  1. Salvadora

  2. Leptadenia

  3. Aristolochia

  4. Nyctanthes

Show answer
Correct Option: A

Ginger is

biology types and parts of plants leaves root, stem, and leaves basics of roots and stem

  1. Stem

  2. Root

  3. Fruit

  4. Bulb

Show answer
Correct Option: A

Transpiration is least in?

transpiration major activities of living organisms biology

  1. Good soil moisture

  2. High wind velocity

  3. Dry environment

  4. High atmosphere Humidity

Show answer
Correct Option: D
Explanation:

Loss of water in the form of water vapour through the aerial parts of the plant body is called Transpiration. The transpiration rate falls as the relative humidity of the air around the plant increases.
So, the correct option is 'High atmosphere Humidity'.

Which is the process mainly involved in transpiration?

transpiration major activities of living organisms biology

  1. Inhibition

  2. Respiration

  3. Osmotic pressure

  4. Diffusion

Show answer
Correct Option: A