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WorksheetsHOMEOSTASIS
Total questions: 12
Worksheet time: 7mins
Diagram shows the mechanism of temperature regulation by the nervous system.
The control mechanism is described as
Reflex arc
Impulse transfer
Negative feedback
Positive feedback
A student walks into a cold room.
Which of the following happens to his body?
Sweating and vasodilation of blood vessels.
Shivering and vasoconstriction of blood vessels
Sweating and vasoconstriction of blood vessels.
Shivering and vasodilation of blood vessels.
Diagram shows ultrafiltration that occurs in kidney.
Which of the following substances cannot move across X?
Fibrinogen
Glucose
Water molecule
Urea
The formation of urine involves the following processes except
Ultrafiltration
Reabsorption
Secretion
Excretion
A boy ran very fast when chased by a fierce dog.
Which of the following occurs in the boy’s body?
Metabolic rate decreases
Rate of digestion increases
Concentration of blood glucose increases
Amount of glucagon secreted decreases
A medical check-up shows that a patient’s pancrease is damaged and has to be removed
Which of the following should be done by the patient to maintain a normal blood sugar level?
Taking glucose injections
Taking a balanced diet
Taking insulin and glucagon injections.
Reduce intake of high calorie food
What is the effect on the production of urine if less antidiuretic hormone is secreted?
Less volume but concentrated
Less volume but dilute
More volume but concentrated
More volume but dilute
Diagram shows the negative feedback mechanism during the regulation of blood osmotic pressure.
What is the response of pituitary and adrenal glands?
Pituitary gland Secretes more ADH
Adrenal gland Secretes more aldosterone
Pituitary gland Secretes less ADH
Adrenal gland Secretes less aldosterone
Pituitary gland Secretes more ADH
Adrenal gland Secretes less aldosterone
Pituitary gland Secretes less ADH
Adrenal gland Secretes more aldosterone
Diagram shows the structure of a nephron
Which of the following activities cause X to be more permeable to water?
Eating salty foods
Doing homework in air conditioned room
Watching TV
Drinking a lot of water
The blood glucose level rises after meal. The Islet cells in the pancreas are stimulated to secrete insulin. Which of the following is the function of insulin?
Stimulate conversion of excess glucose to glycogen
Promotes the breakdown of lipid
Stimulate the uptake of glucose by the liver and muscle cells
Stimulate the conversion of glycogen to glucose
Which of the following physiological processes shows the mechanism of negative feedback?
Maintenance of constant body temperature
formation of urine by the kidneys
Maintaining the osmotic pressure of blood
Expelling carbon dioxide from the lungs
Diagram shows the cross section of human skin.
Which of the following will occur when the surrounding temperature drops below 10 ° C?
R constrict
Q relax
P erect
S become active
