Advertisements
Advertisements
Question
Why is transport of materials necessary in a plant or in an animal? Explain.
Advertisements
Solution
- Transport of materials is necessary in both plants and animals, as every cell needs a regular supply of nutrients and oxygen to release energy through respiration.
- The food that we eat is broken down into smaller components to be absorbed by the cells. The oxygen that we inhale is also transported to all the cells of the body.
- In plants and animals, food, water, oxygen and other important useful substances are transported to various parts of the body through blood through which a human being performs biological activities.
- Through transportation, harmful substances produced in those organs, such as carbon dioxide, sweat, urine, etc., are removed from the body. Therefore, the transportation of substances is necessary for plants and animals.
APPEARS IN
RELATED QUESTIONS
The xylem in plants is responsible for ______.
What substance/substances are transported in plants by xylem vessels and tracheids?
The phloem is responsible for the translocation of food.
How do plants absorb water? Explain.
When any dry plant material is kept in water, they swell up. Name and define the phenomenon involved in this change.
The site of photosynthesis in the cells of a leaf is ____________.
Assertion: Resins and gums are stored in old xylem tissue in plants.
Reason: Resins and gums facilitate transport of water molecules.
How do leaves of plants help in excretion?
These consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:
Assertion: Amphibians can tolerate mixing of oxygenated and deoxygenated blood.
Reason: Amphibians are animals with two chambered heart
We need to water the soil in plants on a regular basis but it ultimately reaches the leaves of the plant. Explain how this takes place.
