SS2 second term Examination on Human Biology

Welcome to your SS2 second term Examination on Human Biology

Name

Class

1. Which keyword matches the following definitions

A. Temperature control

B. Homeostasis

C. Body regulation

D. Homo regulation

2. Which of the following statements accurately describes the function of insulin

A. Simulation of cell respiration

C. Cause glucose to be moved from the blood into the cells

B. Monitors blood glucose concentration

D. It increases the level of glucose in the blood

3. What caused type two diabetes?

D. Being overweight and leading a sedentary lifestyle

A. Tue cells of the pancreas stop producing insulin

C low blood sugar levels

B. Type two diabetes is a communicable disease

4. Some individuals suffer from starvation even though they eat sufficient amount of food . Identify which condition from A-D could explain this

A. Too little thyroxin

B. Too much adrenaline

D. Too little insulin

C. Too much ADH

5. Which of the following functions of the liver results in the production of the bile pigments

A. Breakdown of haemoglobin

B. Release of stored vitamin D

D. Deamination of amino acids

C. Detoxification of toxins

6. Which of the following is not synthesized in the liver

B. Fibrinogen

C. Urea

A. Cholesterol

D. Vitamin D

7. The active secretion process during urine production in the nephron occurs mainly in the

A. Loop henle

D. Bowman's capsule

B. Distal convoluted tubule

C. Proximal convoluted tubule

8. The liver functions are required for ___

C. Homeostasis

D. All of the above

B. Osmoregulation

A. Thermoregulation

9. During catabolism of amino acids,the amino group is released

A. Deamination

B. Hydrolysin

D. Ammunition

C. Hydration

10. Which claim about homeostasis is false

C. Despite large changes in the external environment, homeostatic mechanisms maintain a constant internal environment

A. As a result,the internal environment fluctuation are extremely limited in comparison to those of the external environment

B. Homeostasis activities are regulated by a specific control system

D. All the preceding

11. Homeostasis is best described which of the following

A. Maintaining a stable and unaltered state of the body

C. Keeping the internal environment near constant

D. Changing the external environment to meet the body's requirements

B. Stable equilibrium

12. Which of the following caharater of a system is most likely to result in a stable homeostatic system?

D. Complicatedness

A. Unfavorable feedback

C. Redundancy is a term that refers to a stable form

B. Positive reaction

13. Which of the following hypertension statement is false

A. Hypertension is a medical term that refers to high blood pressure

C. Lifestyle changes can help manage hypertension in some cases

B. Headache and dizziness are common symptoms of high blood pressure

D. Hypertension raises the chances of heat attack or stroke

14. Which of the following statements about glucose is incorrect?

B. Both aerobic and anaerobic metabolism can metabolism glucose

A. Glucose is a sugar that is made of monosaccharides

D. Hypoglycemia refers to a high blood glucose levels

C. A normal blood glucose level is between 4 and 7 mm/mhg

15. Which of the following strategies will not help you return to a normal body temperature if you have a high body temperature

D. Blood flow redistribution to the periphery

C. Skin hair flattening

A. Thermogenesis without shivering

B. Excessive sweating

16. Negative feedback in homeostasis refers to ___

C. A one time corrective measure that does not repeat

A. A response that amplifies the internal stimulus

B. Insulin mediated glucose uptake by muscle and adipose tissue

D. A system regulated solely by central nervous system

17. Which of the following mechanisms explain how the body consumes heat in cold environment

D. Activating parasympathetic tone to reduce vasodilation

C. Enhancing urinary

A. Increased skin blood flow sweating

B. Peripheral vasoconstriction and increased metabolic rate

18. ____ is another term for poikilothermic animals

C. Endothermic

D. Exothermic

A. Warm blooded

B. Cold blooded

19. Homeothermic animals maintain a ____

A. Constant body temperature

B. Variable body temperature

D. High body temperature

C. Low body temperature

20. What is a biological catalyst

C. Vitamin

D. Mineral

B. Hormone

A. Enzyme

Subjective Questions

1. The body maintains glucose homeostasis through ____

2. Why is homeostasis crucial for survival

3. _____&(4)___ are among the organs involved in homeostasis

5. The body regulates temperature through ____

6. _____&(7)____ are among the causes of kidney diseases

8. _____ is the role of bile in digestion

9._____&(10)_____ are among the conditions affecting kidney functions

Theory questions Instruction; Answer any three questions of your choice

1a. Thoroughly describe the skin of mammals 1b. Differentiate between poikilothermic and homeothermic animals

2a. Mention three functions of the pituitary gland 2b. Discuss the liver as a homeostatic organ 2c. List and explain three functions of the liver

3a. Draw and label the diagram of the kidney. 3b. How does the skin regulate the body temperature?

4a. Draw and label the diagram of the skin 4b. Explain five functions of the labelled parts

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