Q U E S T I O N S
1. What are the components of the transport system in human beings?
What are the functions of these components?
2. Why is it necessary to separate oxygenated and deoxygenated blood in
mammals and birds?
3. What are the components of the transport system in highly organised
plants?
4. How are water and minerals transported in plants?
5. How is food transported in plants?
Answers
1)
The components of the transport system in human beings are the heart, blood, and blood vessels. The function of the heart is to pump oxygenated blood throughout the body and receives deoxygenated blood from the various body parts and sends this impure blood to the lungs for oxygenation.
2)
In birds and mammals have a double circulation system where both the oxygenated and deoxygenated blood maintains separate. ... It is necessary for them to separate oxygenated and de-oxygenated blood so that their circulatory system is more efficient and can maintain their constant body temperature
3)
The main components of the transport system in highly organised plants are xylem and phloem. Xylem consists of tracheids and vessels conducting water and minerals (obtained from the soil) to the leaves.
4)
Xylem transports water and minerals from roots to aerial parts of the plant whereas phloem transport food from leaves to other parts of the plant.
5)
The food which is prepared by the process of photosynthesis in the leaves of a plant has to be transported to other parts like stem, roots, branches etc. Therefore this food is transported to other parts of the plant through a kind of tubes called phloem. ... Phloem is present in all the parts of a plant.
1 : blood, heart, blood vessels .
2: right atrium receives deoxygenated blood from systemic circulation and right atrium receives oxygenated from pulmonary circulation.
3: vascular tissues are the main tissues which transport components.
4: water and minerals are transported with the help of xylem it is present in vascular tissue.
5: From the leaves food was transported and phloem is responsible for the transport of food from leaves to all parts.
I hope it may helpful to you,
Thank you.