Presentation on theme: "HQ- Chap. 30-31. 1- Which of the following shows the correct sequence? A. Pituitary thyroxine thyroid TSH B. Pituitary TSH thyroid thyroxine."— Presentation transcript:
1- Which of the following shows the correct sequence? A. Pituitary thyroxine thyroid TSH B. Pituitary TSH thyroid thyroxine C. TSH thyroxine pituitary thyroid D. Thyroid TSH thyroxine pituitary
2- In humans, vitamin D plays an essential role in the absorbtion of which substance?
3- which plant growth substance promotes the growth of buds?
4- Name and element other than nitrogen which deficiency results in yellow leaves?
5. Name the chemicalthat has an inhibitory effect on the action of many enzymes
6- Which two drugs result in the birth of children of smaller size?
7- Give three reasons why calcium is needed by humans?
8. What is the name given to the movement of plants as a result of uneven light exposure?
9- Where is α- amylase synthesised in the barley seed?
10- what is the name of the part of the barley seed which acts as a food reserve?
Answers 1-B 2- Calcium 3- Gibelleric acid 4- Magnesium 5- Lead 6- Nicotine, alcohol 7- for bones, teeth and clotting of blood 8- phototropism 9- Aleurone layer 10- Endosperm