What is the function of digestive enzymes?
Digestive enzymes breaks the complex food molecules into simpler ones. This will make the food absorption process easy and effective. Absorbed food is transported to all parts of the body by blood.
Enzymes secreted in small intestine.
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.
What are the differences between the transport of materials in xylem and phloem?
Describe double circulation of blood in human beings. Why is it necessary?
What would be the consequences of a deficiency of haemoglobin in our bodies?