Q.1.
Exchange surfaces are generally involved in the...
Q.2.
Within leaves, the gases enter and leave through specialised pores called...
Q.3.
Alveoli are found in the...
Q.4.
Exchange surfaces are usually very...
Q.5.
Mineral ions enter the plant by active transport through the...
Q.6.
During gaseous exchange, which two gases are involved?
Q.7.
In animals, uptake of materials is quicker if there is a rich network of...
Q.8.
Carbon dioxide enters plants mainly through the...
Q.9.
Diffusion is faster across an exchange surface if the concentration gradient is...
Q.10.
These are found in large numbers in the lining of the small intestine.