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- A certain metabolic pathway takes the following sequence.
J ----- K ----- L ----- M ----- N
At the start of the experiment an inhibitor was added to the reactants....(Solved)
A certain metabolic pathway takes the following sequence.
J ----- K ----- L ----- M ----- N
At the start of the experiment an inhibitor was added to the reactants. After the experiment it was found that there was the same concentration of J more than normal concentration of K; near absence of L, M, and N.
When L was added to the inhibitor set M and N were detected.
a)At what stage of the reaction sequence did the inhibitor have its effects?
b)Explain how the inhibitor affected the reaction.
Date posted: October 1, 2019. Answers (1)
- Below is a list of some sources of energy:
Coal, Nuclear Energy, Petroleum, Hydroelectric Power, Solar Energy and Wind Energy. Classify them into:
a)Non – renewable
b)Renewable(Solved)
Below is a list of some sources of energy:
Coal, Nuclear Energy, Petroleum, Hydroelectric Power, Solar Energy and Wind Energy. Classify them into:
a)Non – renewable
b)Renewable
Date posted: October 1, 2019. Answers (1)
- Name any three common bone disorders in man.(Solved)
Name any three common bone disorders in man.
Date posted: October 1, 2019. Answers (1)
- Explain the terms receptors, conductors and effectors(Solved)
Explain the terms receptors, conductors and effectors
Date posted: October 1, 2019. Answers (1)
- List three types of joints found in the skeleton and state the location of each.(Solved)
List three types of joints found in the skeleton and state the location of each.
Date posted: October 1, 2019. Answers (1)
- Explain how the structure of a synovial joint is related to its function of allowing movement to occur.
(Solved)
Explain how the structure of a synovial joint is related to its function of allowing movement to occur.
Date posted: October 1, 2019. Answers (1)
- List the components of the mammalian sensory system(Solved)
List the components of the mammalian sensory system
Date posted: October 1, 2019. Answers (1)
- Name the main systems for coordination in animals(Solved)
Name the main systems for coordination in animals
Date posted: October 1, 2019. Answers (1)
- It is estimated that the total length of the capillaries in man is 60km. They are much branched, thin walled and narrow. Explain...(Solved)
It is estimated that the total length of the capillaries in man is 60km. They are much branched, thin walled and narrow. Explain the significance of these features.
Date posted: October 1, 2019. Answers (1)
- What is coordination in animals(Solved)
What is coordination in animals
Date posted: October 1, 2019. Answers (1)
- A person of blood group B marries a woman of blood group B. Work out the possible blood group of their children.(Solved)
A person of blood group B marries a woman of blood group B. Work out the possible blood group of their children.
Date posted: October 1, 2019. Answers (1)
- Explain how fatty acids and glycerols are absorbed in the ileum.(Solved)
Explain how fatty acids and glycerols are absorbed in the ileum.
Date posted: October 1, 2019. Answers (1)
- Explain briefly how excess protein are eliminated in the body.(Solved)
Explain briefly how excess protein are eliminated in the body.
Date posted: October 1, 2019. Answers (1)
- Outline briefly the method of ventilation used by locust and cockroach.(Solved)
Outline briefly the method of ventilation used by locust and cockroach.
Date posted: October 1, 2019. Answers (1)
- Explain four precautions that can be taken to prevent typhoid being transmitted(Solved)
Explain four precautions that can be taken to prevent typhoid being transmitted
Date posted: October 1, 2019. Answers (1)
- Sickle – cell anaemia is a hereditary disease due to mutation of gene for normal haemoglobin to gene that causes sickle cell anaemia. What are...(Solved)
Sickle – cell anaemia is a hereditary disease due to mutation of gene for normal haemoglobin to gene that causes sickle cell anaemia. What are the possible phenotype offspring of a man and a woman both heterozygous.
Date posted: October 1, 2019. Answers (1)
- Pollen from a red – flowered plant A was used to pollinate white flowered plant B, the seeds from which produced 157 red-flowered plants. When...(Solved)
Pollen from a red – flowered plant A was used to pollinate white flowered plant B, the seeds from which produced 157 red-flowered plants. When a red flowered plant C was pollinated by a white-flowered plant D, the resultant seeds gave rise to 84 red-flowered plants: and 91 white flowered plants. Assuming that plants A, B, C, and D were all of the same species and that flower colour in that species is controlled by a single pair of genes.
Using R for dominant gene and r for recessive gene, write down the genotypes of the following.
i)Plant A
ii)Plant B
iii)Progeny of A x B cross
iv)Plant C
v)Plant D
vi)Red flowered progeny of C x D cross.
Date posted: October 1, 2019. Answers (1)
- State two symptoms of gout disease in man.(Solved)
State two symptoms of gout disease in man.
Date posted: October 1, 2019. Answers (1)
- Distinguish between gaseous exchange and respiration(Solved)
Distinguish between gaseous exchange and respiration
Date posted: October 1, 2019. Answers (1)
- Nocturnal animals such as the owl are capable of seeing fairly well at night. What two adaptations have made this possible.(Solved)
Nocturnal animals such as the owl are capable of seeing fairly well at night. What two adaptations have made this possible.
Date posted: October 1, 2019. Answers (1)