Midnight – There was no photosynthesis at night; and carbon IV oxide was not used hence the high concentration;
Noon - Carbon IV oxide was used in photosynthesis and therefore CO2 concentration dropped
marto answered the question on October 4, 2019 at 07:29
-
a)Name the specific part of the chloroplast where the following processes occur.
(Solved)
a)Name the specific part of the chloroplast where the following processes occur.
(i) Carbon IV oxide fixation
(ii) Photolysis
(b) State one way in which the dark reactions of photosynthesis depends on light reaction.
Date posted:
October 4, 2019
.
Answers (1)
-
The table below shows three enzymes A, B and C and their respective optimum pH.
(Solved)
The table below shows three enzymes A, B and C and their respective optimum pH.
(i) Name the most likely region of the alimentary canal of a mammal where enzyme B would be found.
(ii) Give a reason for your answer in (a) (i) above
Date posted:
October 4, 2019
.
Answers (1)
-
The diagram below represents a cell organelle
(Solved)
The diagram below represents a cell organelle.
(i) Name the part labeled y
(ii) State the function of the part labeled X
State the function of the vitamin named in (i) above
Date posted:
October 4, 2019
.
Answers (1)
-
Below is a process that takes place along the mammalian digestive system.
(Solved)
Below is a process that takes place along the mammalian digestive system.
(a) Name the processes represented by A and B
(b) Name part of the alimentary canal where the process B takes place
Date posted:
October 4, 2019
.
Answers (1)
-
Briefly explain the fate of the following products from the light stage of the process of
Photosynthesis:
(a) Oxygen
(b) Hydrogen
(c) ATP
(Solved)
Briefly explain the fate of the following products from the light stage of the process of
Photosynthesis:
(a) Oxygen
(b) Hydrogen
(c) ATP
Date posted:
October 3, 2019
.
Answers (1)
-
State two ways in which guard cells differ from other epidermal cells.
(Solved)
State two ways in which guard cells differ from other epidermal cells.
Date posted:
October 3, 2019
.
Answers (1)
-
Briefly explain the symbiotic relationship in the root nodule of a leguminous plant.
(Solved)
Briefly explain the symbiotic relationship in the root nodule of a leguminous plant.
Date posted:
October 3, 2019
.
Answers (1)
-
Briefly explain the effect of poisoning the roots hair on the uptake of nitrate by plants.
(Solved)
Briefly explain the effect of poisoning the roots hair on the uptake of nitrate by plants.
Date posted:
October 3, 2019
.
Answers (1)
-
a)State the role of emulsification in the digestion of fats in the alimentary canal.
b) What is the function of hydrochloric acid in the alimentary canal.
(Solved)
b)State the role of emulsification in the digestion of fats in the alimentary canal.
b) What is the function of hydrochloric acid in the alimentary canal.
Date posted:
October 3, 2019
.
Answers (1)
-
The diagram below represents a cell organelle.
(Solved)
The diagram below represents a cell organelle.
i) Name the part labeled Y
ii) State the function of the part labeled X
Date posted:
October 3, 2019
.
Answers (1)
-
The diagram below is of a certain type of neurons
(Solved)
The diagram below is of a certain type of neurons
(a) Identify the type of neuron
(b) Give a reason for your answer in (a) above
(c) Give the functions of the parts labeled A, B, and D
Date posted:
October 3, 2019
.
Answers (1)
-
A solution of sugar cane was boiled with hydrochloric acid and sodium hydrogen carbonate was added to the solution, which was then boiled with benedicts...
(Solved)
A solution of sugar cane was boiled with hydrochloric acid and sodium hydrogen carbonate was added to the solution, which was then boiled with benedicts solution. An orange precipitate was formed.
(a) Why was the solution boiled with hydrochloric acid and then sodium hydrogen carbonate added in it
(b) To which class of carbohydrates does sugar cane belong?
(c) State the form in which carbohydrates are:
(i) Transported in animals
(ii) Transported in plants
Date posted:
October 3, 2019
.
Answers (1)
-
The following reaction may occur in a forward and backward direction.
(Solved)
The following reaction may occur in a forward and backward direction.
(a) Name the organelle where the reaction occurs in:
(i) Forward direction
(ii) Backward direction
(b) Give one difference and one similarity for the two organelles named in (a) above
Date posted:
October 3, 2019
.
Answers (1)
-
One of the components of bile is a chemical left over from destruction of red blood cells.
i) Identify the chemical substance
ii) What is the role...
(Solved)
One of the components of bile is a chemical left over from destruction of red blood cells.
i) Identify the chemical substance
ii) What is the role of bile in digestion
Date posted:
October 3, 2019
.
Answers (1)
-
State two ways in which the guard cells differ their adjacent epidermal cells
(Solved)
State two ways in which the guard cells differ their adjacent epidermal cells
Date posted:
October 3, 2019
.
Answers (1)
-
The diagram below shows how food boles move along the human esophagus and the Intestine.
(Solved)
The diagram below shows how food boles move along the human esophagus and the Intestine.
(a) Identify the process illustrated in the diagram
(b) Briefly state how the movement of food boles from position 1 to position 2 is achieved
(c) Name one component of a persons diet that assists in the movement of food described in
(b) above
Date posted:
October 3, 2019
.
Answers (1)
-
Name the diseases caused by deficiency of :
(a) Iodine
(b) Vitamin C
(Solved)
Name the diseases caused by deficiency of :
(a) Iodine
(b) Vitamin C
Date posted:
October 3, 2019
.
Answers (1)
-
A biological washing detergent contains enzymes which remove stains like mucus and oils from clothes which are soaked in water with the detergent:-
(a) Name two...
(Solved)
A biological washing detergent contains enzymes which remove stains like mucus and oils from clothes which are soaked in water with the detergent:-
(a) Name two groups of enzymes that are present in detergent
(b) Explain why stains would be removed faster with the detergent in water at 35 degree C rather than at 15 degrees C
Date posted:
October 3, 2019
.
Answers (1)
-
State three adaptations of aquatic plants to photosynthesis.
(Solved)
State three adaptations of aquatic plants to photosynthesis.
Date posted:
October 3, 2019
.
Answers (1)
-
The diagram below shows chemical reactions A and B which are controlled by enzymes x and y.
(Solved)
The diagram below shows chemical reactions A and B which are controlled by enzymes x and y.
(a) Name:
(i) Reaction A.
(ii) Enzyme y
Date posted:
October 3, 2019
.
Answers (1)