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INTERVENTION BIOLOGY CHAPTER 10
CHAPTER 10 : TRANSPORT1. The diagram below shows the cross section of a human heart.
(a) Label structures A, B, C and D.
A: . C: ..
B: . D: ..
(b) State the functions of structures labelled P and Q.
P: .
Q: .
(c) The muscular wall of D is thicker compared to the muscular wall of structure E. Explain why?
(d) Draw arrows to indicate the direction of blood flow in the heart.
(e) Name two differences between structures Q and S .
1. .....................................................................................
..
2. ..
2. Figure 2 shows left half of the human heart.
Figure 2
(a)On Figure 2,
( i) complete the right half of the heart and label the drawn parts.
(ii) draw an arrow to show the flow of blood.
( 3 marks )
(b)( i)Which chamber is contracting?
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(ii)Based on Figure 2, give two reasons to support the answer of (b)(i).
1. ____________________________________________________________________
2. ____________________________________________________________________
( 3 marks )
(c)( i)State the difference between chambers labeled Y and Z.
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(ii)Explain the importance of the difference in (c)(i).
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( 2 marks )
(d) )( i)Do the contractions of the cardiac muscle need to be stimulated by nerve impulses?
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(ii)Explain your answer in (d)(i).
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( 2 marks )
3.Figure 3 shows the concentration of antibody in the blood of Individuals P and Q during
the treatment to acquire immunity.
(a)Identify the type of immunisation given to each of them.
Individual P : __________________________________________________________
Individual Q : ___________________________________________________________
( 2 marks )
(b)State the difference of the antibody concentration in the blood between Individual P and
Q. Explain your answer.
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( 2 marks )
(c)State the advantages of the type of immunisation given to both individuals.
Individual P : __________________________________________________________
Individual Q : ___________________________________________________________
( 2 marks )
(d)Apart from the natural defences provided by the phagocytes and the lymphocytes,
antibiotics and vaccination are used to combat infectious diseases.
Explain what is meant by :
( i) antibiotic : _______________________________________________________
(ii) vaccines : ________________________________________________________
( 2 marks )
4. Table 2 shows the information of types of blood.
Type of blood
FunctionCarries oxygen and carbon dioxideDefense mechanismProduces antibodies :
- Lysine
- Agglutinin
- AntitoxinBlood clotting
Table 2
(a)( i)Cell Q engulfs the pathogen entering the body by phagocytosis. Complete the diagram
below to show the mechanism of phagocytosis occurred in cell Q.
(ii)Cell R destroys the pathogens entering the body by the action of antibodies. State one
of the mechanisms used by antibodies to destroy pathogens.
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( 1 mark )
(b)( i)Explain how cell P functioning in the transportation of respiration gases.
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( 3 marks)
(ii)Based on Table 2, state two structural differences between Cell P and Cell Q.
1. ___________________________________________________________________
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2. ___________________________________________________________________
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( 2 marks )
(c)( i)Explain how Cell S functioning in the blood clotting.
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( 2 marks )
(ii)Write down two enzymic reactions in the mechanism of blood clotting.
1.
2.
( 2 marks )Q
C
P
S
E
Cell P
Cell Q
Cell R
Cell S
Pathogens