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1. Re-absorption of useful substances from kidney tubules to blood stream
2. Absorption of digested food substances from ileums blood stream
3. Pumping of sodium and potassium ions in nerve cells
johnmulu answered the question on January 21, 2017 at 12:22
- What are the structural differences between skeletal and smooth muscles?(Solved)
Give two structural differences between skeletal and smooth muscles.
Date posted: January 21, 2017. Answers (1)
- Give an example of the sex linked trait in humans on(Solved)
Give an example of the sex linked trait in humans on
i) Y – Chromosomes
ii) X - Chromosomes
Date posted: January 21, 2017. Answers (1)
- What are the functions of the following structures in the human ear?(Solved)
Give the function of the following structures in the human ear
(a) Semi-7 circular canals.
(b) Eustachian tube.
Date posted: January 21, 2017. Answers (1)
- Why do unicellular organisms such as paramecium lack complex organs for gaseous exchange?(Solved)
Explain why unicellular organisms such as paramecium lack complex organs for gaseous exchange.
Date posted: January 21, 2017. Answers (1)
- Where are lysosomes synthesized?(Solved)
Where are lysosomes synthesized?
Date posted: January 21, 2017. Answers (1)
- Name the organelle where Kreb’s/ citric cycle take place in a cell(Solved)
Name the organelle where Kreb’s/Citric cycle take place in a cell.
Date posted: January 21, 2017. Answers (1)
- What are fossils?(Solved)
What are fossils?
Date posted: January 18, 2017. Answers (1)
- What are the probable genotypes of (i) The woman (ii) Her father (iii) Her mother(Solved)
A woman has a rare abnormality of the eyelids, called ptosis, which makes it impossible for her to open her eyes completely. The conditions has been found to be due to a single dominant gene (T). The woman's father had ptosis, but her mother had normal eyelids. Her father's mother had normal eyelids
a) What are the probable genotypes of
i) The woman
ii) Her father
iii) Her mother
Date posted: January 18, 2017. Answers (1)
- A person of blood group O requires blood transfusion. Name the blood group(s)(Solved)
A person of blood group O requires blood transfusion. Name the blood group(s) that would - be donor(s)
Date posted: January 18, 2017. Answers (1)
- Name the process, in nature, which (a) Removes carbon (IV) oxide from the atmosphere(Solved)
Name the process, in nature, which
a) Removes carbon (IV) oxide from the atmosphere
b) Releases carbon (IV) oxide into the atmosphere
Date posted: January 18, 2017. Answers (1)
- What is meant by sex-linked genes?(Solved)
What is meant by sex-linked genes?
Date posted: January 18, 2017. Answers (1)
- State two important functions of the spinal cord(Solved)
State two important functions of the spinal cord.
Date posted: January 18, 2017. Answers (1)
- A rhinoceros in a national park was found to be infected with ticks. Name the trophic level occupied by the(Solved)
A rhinoceros in a national park was found to be infected with ticks. Name the trophic level occupied by the
a) rhinoceros
b) ticks
Date posted: January 18, 2017. Answers (1)
- What name is given to the position an organism occupies and the role it plays in an ecosystem?(Solved)
What name is given to the position an organism occupies and the role it plays in an ecosystem?
Date posted: January 18, 2017. Answers (1)
- What protects the following parts of maize seedling during germination (Solved)
What protects the following parts of maize seedling during germination
a) Embryonic shoot
b) Embryonic root
Date posted: January 18, 2017. Answers (1)
- Which features of the placenta speeds up the exchange of materials between the mother and foetus?(Solved)
State two features of the placenta which speeds up the exchange of materials between the mother and foetus.
Date posted: January 18, 2017. Answers (1)
- Where in human body are relay neurons found?(Solved)
Where in human body are relay neurons found?
Date posted: January 18, 2017. Answers (1)
- Name the source of progesterone at the following stages(Solved)
Name the source of progesterone
a) Before the fourth month of pregnancy
b) After the fourth month of pregnancy
Date posted: January 18, 2017. Answers (1)
- Distinguish between deoxyribonucleic acid and ribonucleic acid in man in these aspects(Solved)
Distinguish between deoxyribonucleic acid and ribonucleic acid in man in these aspects
a) Chemical composition
b) Function
c) Location in the cell
Date posted: January 18, 2017. Answers (1)
- What is the difference between population and a community?(Solved)
Give the difference between population and a community.
Date posted: January 18, 2017. Answers (1)