(a) (i) Rib cage/ chest cavity
(ii) Diaphragm
(b) Lungs inflate or expand i.e. balloons are inflated
(c) The volume of D increases and pressure decreases when you pull down the string. External atmospheric pressure being higher forces air to enter the balloons and they inflate
johnmulu answered the question on May 4, 2017 at 05:37
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How are lenticels adapted for gaseous exchange?
(Solved)
How are lenticels adapted for gaseous exchange?
Date posted:
May 4, 2017
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Answers (1)
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The diagram below represents part of the gaseous exchange system in human.
(Solved)
The diagram below represents part of the gaseous exchange system in human.
(a) Name the parts labelled F and G.
(b) State one function of each of the parts labelled H and J
Date posted:
May 4, 2017
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Answers (1)
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State the difference in content of oxygen and carbon (IV) oxide in the air that enters and leaves the human lungs
(Solved)
State the difference in content of oxygen and carbon (IV) oxide in the air that enters and leaves the human lungs
Date posted:
May 4, 2017
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Answers (1)
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Apart from the lungs, name two gaseous exchange surface in a frog.
(Solved)
Apart from the lungs, name two gaseous exchange surface in a frog.
Date posted:
May 4, 2017
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Answers (1)
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(a) Name the gaseous exchange surface in insects.
(b) How is the surface named in (a) above suited to its function.
(Solved)
(a) Name the gaseous exchange surface in insects.
(b) How is the surface named in (a) above suited to its function.
Date posted:
May 4, 2017
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Answers (1)
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State four characteristics of gaseous exchange surfaces.
(Solved)
State four characteristics of gaseous exchange surfaces.
Date posted:
May 4, 2017
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Answers (1)
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a) Name two structures for gaseous exchange in aquatic plants (b) What is the effect of contraction of the diaphragm muscles during breathing in mammals?
(Solved)
a) Name two structures for gaseous exchange in aquatic plants
b) What is the effect of contraction of the diaphragm muscles during breathing in mammals?
Date posted:
May 3, 2017
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Answers (1)
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State four ways in which respiratory surfaces are suited to their function
(Solved)
State four ways in which respiratory surfaces are suited to their function
Date posted:
May 3, 2017
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Answers (1)
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State two ways in which floating leaves of aquatic plants are adapted to gaseous exchange.
(Solved)
State two ways in which floating leaves of aquatic plants are adapted to gaseous exchange.
Date posted:
May 3, 2017
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Answers (1)
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The diagram below represents a part of the rib cage.
(Solved)
The diagram below represents a part of the rib cage.
(a) Name the parts labeled W, Y and Z.
b) How does the part labeled Z facilitate breathing in?
Date posted:
May 3, 2017
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Answers (1)
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The diagram below shows gaseous exchange tissues
(Solved)
The diagram below shows gaseous exchange tissues
(a) Name the gas that diffuses:
(i) To the body cells
(ii) From the body cells
b) Which compound dissociate to release the gas named (a) (i) above
c) Name the blood vessel with the highest concentration of:
i) Glucose
ii) Carbon (IV) oxide
Date posted:
May 3, 2017
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Answers (1)
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Name two gaseous exchange structures in higher plants.
(Solved)
Name two gaseous exchange structures in higher plants.
Date posted:
May 3, 2017
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Answers (1)
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Name three sites where gaseous exchange take place in terrestrial plants.
(Solved)
Name three sites where gaseous exchange take place in terrestrial plants.
Date posted:
May 3, 2017
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Answers (1)
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Why are gills in fish highly vascularized
(Solved)
Why are gills in fish highly vascularized
Date posted:
May 3, 2017
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Answers (1)
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a) What is a single circulatory system(b) Name an organism which has single circulatory system(c) Name the opening to the chamber of the heart of an insect
(Solved)
b) Name an organism which has single circulatory system
c) Name the opening to the chamber of the heart of an insect
Date posted:
May 3, 2017
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Answers (1)
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a) State two ways in which heart muscles are special (b) Name the muscles found in the following organs (i) stomach (ii) Bone
(Solved)
a) State two ways in which heart muscles are special
b) Name the muscles found in the following organs (i) stomach (ii) Bone
Date posted:
May 3, 2017
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Answers (1)
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An individual is of blood group B positive.(a) Name the antigens in the individual's blood(b) Give the reason why the individual's cannot receive blood from a blood group A donor
(Solved)
An individual is of blood group B positive.
a) Name the antigens in the individual's blood
b) Give the reason why the individual's cannot receive blood from a blood group A donor
Date posted:
May 3, 2017
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Answers (1)
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The table provided shows the transportation of substances in the human body
(Solved)
The table provided shows the transportation of substances in the human body
Name the substances represented by M, N and P
Date posted:
May 3, 2017
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Answers (1)
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Explain three protective functions of mammalian blood
(Solved)
Explain three protective functions of mammalian blood
Date posted:
May 3, 2017
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Answers (1)
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State the advantages of possessing blood group AB
(Solved)
State the advantages of possessing blood group AB
Date posted:
May 3, 2017
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Answers (1)