Get premium membership and access questions with answers, video lessons as well as revision papers.
a) platelets exposed to air rupture on damage tissues to release thromboplastin/(enzyme) /thrombokinase; Thromboplastin neutralizes heparin; and activates prothrombin to thrombin;
throbin activates the conversion of fibrinogen to fibrin; which forms meshwork of fibres on the bruised surface;
b) blood clotting is the conversion of soluble blood protein into a mass of tangled threads of
insoluble protein; while haemogglutination is the clumping together of red blood cells;
c)haemophilia;
Kavungya answered the question on June 17, 2019 at 06:42
- The equation below represents a metabolic process that occurs in a certain organ in the m
mammalian body:-
Ammonia (enzymes)----> Organic compound Q + water +
Carbon...(Solved)
The equation below represents a metabolic process that occurs in a certain organ in the m
mammalian body:-
Ammonia (enzymes)----> Organic compound Q + water +
Carbon (IV) oxide
a) Name the process represented in the equation.
b) Name the organ in which the process occurs.
c) Why is the process important to the mammal?
d) Identify the organic compound Q.
e) Explain the source of ammonia in the organ named in (b) above.
f) What happens to organic compound Q?
Date posted: June 17, 2019. Answers (1)
- Distinguish between internal environment and external environment(Solved)
Distinguish between internal environment and external environment
Date posted: June 17, 2019. Answers (1)
- State two classes of phylum chordata where all members are poikilothermic .(Solved)
State two classes of phylum chordata where all members are poikilothermic .
Date posted: June 17, 2019. Answers (1)
- What is poikilotherm?(Solved)
What is poikilotherm?
Date posted: June 17, 2019. Answers (1)
- The diagram below shows simplified structures of kidneys from two different animals.
(a) Suggest possible habitat in which animal N is found.
(b) Give two reasons for...(Solved)
The diagram below shows simplified structures of kidneys from two different animals.
(a) Suggest possible habitat in which animal N is found.
(b) Give two reasons for your answer in (a) above.
Date posted: June 17, 2019. Answers (1)
- Explain the effects of the following on the quantity and composition of urine
(a) Drinking large amount of clean water
(b) Drinking very salty soup
(c) Removal of...(Solved)
Explain the effects of the following on the quantity and composition of urine
(a) Drinking large amount of clean water
(b) Drinking very salty soup
(c) Removal of pancreas
Date posted: June 17, 2019. Answers (1)
- The table below shows a description of size of glomeruli and renal tubules of two animals
which are adapted to living in different environment:-
a) Name the...(Solved)
The table below shows a description of size of glomeruli and renal tubules of two animals
which are adapted to living in different environment:-
a) Name the likely environment in which animal A lives
b) Suggest the main nitrogenous waste produced by animal B
c) Name the organelle of osmoregulation in each of the following animal: i) Paramecium
ii) Insects
Date posted: June 17, 2019. Answers (1)
- State two features in the nephron that facilitate ultrafiltration(Solved)
State two features in the nephron that facilitate ultrafiltration.
Date posted: June 17, 2019. Answers (1)
- A patient was complaining of thirst most of the times. A sample of the patient’s urine was found
not to contain a lot of sugar but...(Solved)
A patient was complaining of thirst most of the times. A sample of the patient’s urine was found
not to contain a lot of sugar but was dilute:-
(a) Name the hormone the person’s body was deficient of
(b) Which gland produces the above hormone
(c) Name the disease that the patient was most likely suffering from
Date posted: June 17, 2019. Answers (1)
- Study the homeostatic scheme below:
(a) Identify the hormone labeled A
(b) Name the site of action of hormone A
(c) Identify the feedback labeled D(Solved)
Study the homeostatic scheme below:
(a) Identify the hormone labeled A
(b) Name the site of action of hormone A
(c) Identify the feedback labeled D
Date posted: June 17, 2019. Answers (1)
- The figure below shows a vertical section through a mammalian kidney.
(a) Label the parts A and B
(b) Which part is the Bowman’s capsule found?(Solved)
The figure below shows a vertical section through a mammalian kidney.
(a) Label the parts A and B
(b) Which part is the Bowman’s capsule found?
Date posted: June 17, 2019. Answers (1)
- State two processes through which plants excrete their metabolic wastes.(Solved)
State two processes through which plants excrete their metabolic wastes.
Date posted: June 17, 2019. Answers (1)
- The table below shows the approximate percentage concentration of various components in blood
plasma entering the kidney, glomerular filtrate and urine of a healthy human being
(a)...(Solved)
The table below shows the approximate percentage concentration of various components in blood
plasma entering the kidney, glomerular filtrate and urine of a healthy human being
(a) Name the process responsible for the formation of glomerular filtrate
(b) What process is responsible for the absence of glucose and amino acids in urine?
(c) Explain why there are no plasma proteins in the glomerular filtrate?
Date posted: June 17, 2019. Answers (1)
- The table below shows description of sizes of glomeruli renal tubules of two animals which are
living in different environments
Name the likely environment in which each...(Solved)
The table below shows description of sizes of glomeruli renal tubules of two animals which are
living in different environments
Name the likely environment in which each animal lives :
(i)Animal X
(ii) Animal Y
Date posted: June 17, 2019. Answers (1)
- What role does vasoconstriction play in thermoregulation?(Solved)
What role does vasoconstriction play in thermoregulation?
Date posted: June 17, 2019. Answers (1)
- Name the nitrogenous wastes excreted by the following organisms:-
Animal Nitrogenous Waste
(i) Desert mole
(ii)...(Solved)
Name the nitrogenous wastes excreted by the following organisms:-
Animal Nitrogenous Waste
(i) Desert mole
(ii) Marine fish
(iii) Tilapia
Date posted: June 17, 2019. Answers (1)
- What is diuresis?(Solved)
What is diuresis?
Date posted: June 17, 2019. Answers (1)
- If the human pancreas is not functional:-(i) Name the hormone which will be deficient(ii) Name the disease the human is likely to suffer from(Solved)
If the human pancreas is not functional:-
(i) Name the hormone which will be deficient
(ii) Name the disease the human is likely to suffer from
Date posted: June 17, 2019. Answers (1)
- A student mixed a sample of urine from a person with Benedict’s solution and heated, the colour
changed to orange.
(a) What was present in the urine...(Solved)
A student mixed a sample of urine from a person with Benedict’s solution and heated, the colour
changed to orange.
(a) What was present in the urine sample?
(b) What did the student conclude on the health status of the person?
(c) Which organ in the person may not be functioning properly?
Date posted: June 17, 2019. Answers (1)
- Describe how ingestion of very salty food may reduce the amount of water excreted in urine.(Solved)
Describe how ingestion of very salty food may reduce the amount of water excreted in urine.
Date posted: June 17, 2019. Answers (1)