WorksheetsBiology Form 4 KSSM Topic 13
Total questions: 20
Worksheet time: 15mins
Diagram shows the structure of nephrone. What is X?
Loop of Henle
Collecting duct
Distal convoluted tubule
Proximal convoluted tubule
Urea produced from the .... is secreted into the .... of the kidney before flowing through the …
kidney, glomerulus, loop of Henle
liver, distal convoluted tubule, collecting duct
liver, collecting duct, loop of Henle
kidney, distal convoluted tubule, glomerulus
Diagram shows the structure of human brain. Which part labelled A, B, C, D, E, F, G, H, J, K, L, M, and N controls the regulation of body temperature?
F
A
K
E
Diagram shows the structure of a nephron. Which of the following activities cause X to be more permeable to water?
P and Q
P and R
P, R, and S
P, Q, and R
Diagram shows a nephron which is the basic structure of kidney. What process is taking place at Z?
Deamination
Reabsorption
Osmoregulation
Ultrafiltration
Diagram shows ultrafiltration in the Bowman’s capsule. Which of the following substances enter the capsular space?
Water, glucose, amino acids, urea, mineral salts
Water, glucose, amino acids, urea, plasma proteins
Water, glucose, amino acids, platelets, mineral salts
Water, glucose, amino acids, urea, mineral salt, red blood cells
Which of the following happens in her body corrective mechanisms to control her blood sugar level?
The breakdown of glycogen to glucose by liver
Islet cells in pancreas are stimulated to secrete glucagon
The conversion of excess glucose into glycogen to be stored in liver and muscle cells
Lipid in the adipose tissues break down to release fatty acids that can be metabolized to generate energy
Which of the following can cause the malfunction of the urinary system?
Oedema
Angina
Kidney stone
Gall stone
The graphs show how four different conditions in the body change with time. Which graph depicts the condition that is controlled by the negative feedback mechanism?
Diagram shows a cross section of the human skin. Which part, A, B, C or D, is an effector involved in regulating body temperature?
A
B
C
D
Diagram shows the range of normal blood glucose level. Based on the graph, which statement is true?
Hormone X lowers the blood glucose level.
Hormone Y is secreted when the blood glucose level is high.
Beta (B) cell is stimulated to secrete hormone X when the blood glucose level is low.
Alpha (a) cell is stimulated to secrete hormone Y when the
blood glucose is high.
Which of the following is the receptor in the medulla oblongata that detects an increase in carbon dioxide concentration?
The aorta
Carotid bodies
Chemoreceptors
Thermoreceptors
Which of the following regulatory mechanism occurs when a person blood pressure increases?
Vasoconstriction
Vasodilation
Rate of breathing increases
Body temperature increases
If the osmotic concentration of the distal convoluted tubule is higher than that in the blood capillaries which surround the tubule, this means that
water is lost from the blood capillaries
sodium ions are actively secreted into the tubule
sodium ions are actively reabsorbed into the blood capillaries
sodium ions are lost from the tubule by diffusion
A hemodialysis machine eliminates urea from the blood of a kidney patient. Which statement explains the situation?
The concentration of urea in the blood is the same as that of the dialysis fluid.
The concentration of urea in the dialysis fluid is higher than that of the blood.
The concentration of water molecules in the blood is higher than that of the dialysis fluid.
The concentration of urea in the blood is higher than that of the dialysis fluid.
The most common type of kidney stone is made up of
uric acid
cholesterol
calcium oxalate
calcium phosphate
The following are the symptoms of early stage of kidney stone except
pain while urinating
nausea and vomiting
blood in the urine
increase in blood sugar level
Which of the following are the prevention measures of kidney stone?
I. Exercise regularly
II. Eat a lot of carbohydrate
III. Drink enough water every day
IV. Limit intake of sodium and animal protein
I and II only
II and III only
III and IV only
II, III, and IV
Glucose is a small molecule and is the main content of glomerular filtration. Why is glucose not present in urine?
It is reabsorbed in distal convoluted tubules
It is reabsorbed in proximal convoluted tubules
It is reabsorbed along the length of the nephrons
It is respired by the cells in the kidney
Which of the following is a correct example of homeostasis?
Vasodilation decreases blood flow to the skin
Increased ventilation rate to reduce the oxygen content of blood
Glucagon is secreted to reduce the level of glucose in the blood
More antidiuretic hormone (ADH) is produced to increase the reabsorption of water by the collecting duct in the kidney
