1What is the difference between an exocrine gland and an endocrine gland? Write with examples.
2What is a hormone? Why is it called a chemical messenger?
3Why is the pituitary gland called the master gland?
4What happens when growth hormone is produced in too small or too large an amount?
5Why must our food contain iodine? What is goitre?
6Write any four functions of hormones.
7Why is the pancreas called a mixed gland?
8Why are insulin and glucagon called antagonistic hormones? How does diabetes occur?
9What are the gonads? Write the hormones produced by the testes and the ovaries, with their work.
10What is tetany? How is it caused?
11What symptoms appear in the body when there is too much thyroxine?