Name …………………………………………
Class …………………………………………
1. Fig1 represents a xylem vessel
Fig1
Which of the following diagrams shows the same cells in cross-section?
2. What is transpiration?
A loss of water vapour from leaves
B transport of dissolved sugars from leaves to other parts of the plant
C uptake of water from soil by the roots
D transport of mineral salts from roots to leaves
3. Amoeba is an example of
A
B
C
D
a multi-cellular organism
a plant
a unicellular organism
a tissue
4. Fig3 below shows a shoot placed in a test tube
Fig3
The shoot will wilt when
A water intake is less than water given off by the shoot
B water intake is greater than water given off by the shoot
C water intake is equal to that given off by the shoot
D the water level in the test tube remains constant
5. Which of the following is an example of diffusion in a plant?
A
B
C
D
carbon dioxide from the air moving into a mesophyll cell
ions moving into root hair cells against a concentration gradient
sugars in phloem moving from leaves to roots
water in xylem moving from roots to leaves
6. The diagram below shows two solutions that are separated by a partially permeable membrane.
In which direction will most water molecules move?
A
B
C
D
from X to Y, against their concentration gradient
from X to Y, down their concentration gradient
from Y to X, against their concentration gradient
from Y to X, down their concentration gradient
7. The function of cellulose in a plant cell is
A respiration
B reproduction
8. Complete the table below;
Cell
C support
D control of cell activities
[3]
function
features

1. ………………….. Transport oxygen around the body
2. Nerve cell
……………………………………
3. Xylem cell
Transport water

Small,
biconcave and
disc-like
Haemoglobin


myelin sheath
dendrides
……………………….
9. Use the words below to march with appropriate description and/or functions of the
parts of a dicotyledonous leaf.
Palisade cells, stomata, guard cells, xylem, spongi mesophyll cells, phloem,
Part
Description/Function
Small pores through which water vapour is lost by the leaf
The only epidermal cells which contain chloroplasts
Organic substances (e.g. sucrose) is transported through this part
Made of dead cells with lignified walls
Most photosynthesis take place here
[5]
BIOLOGY SECTION
1. Figure 1.2 shows a part of the reproductive system of a woman about to give birth.
Which numbered parts are the uterus and cervix?
A
Uterus
1
cervix
2
B
2
3
C
3
4
D
4
5
2. Put the following in their correct order to show how the body responds to a drop in
body temperature.
1. Nerve impulses are sent from hypothalamus to the walls of blood vessels under skin
2. Vasoconstriction
3. Blood with low temperature passes through hypothalamus
4. less heat is lost through skin by radiation
A
1
2
3
4
B
1
3
4
2
C
3
1
2
4
D
3
1
4
2
3. Which process keeps conditions such as temperature and glucose concentration
constant?
A excretion
B fertilization
C peristalsis
D homeostasis
4. The diagram shows a male gamete and female gamete.
WW
What is process W?
A Copulation
B fertilization
C fission
D ovulation
5. The graph below shows the number of pregnancies which resulted while four groups of
100 women were using a different method of birth control.
Which method of birth control was the most effective (according to this graph)?
6. The diagram below shows an external view of the heart of a patient with a blockage of
the coronary artery. This could be treated by inserting a tube to by-pass the blockage.
Which two vessels could be joined by this tube?
A 1 and 2
B 1 and 4
C 2and 4
D 3 and 4
7. The diagram below shows four components of blood.
Which one produces antibodies to destroy pathogens inside the body?
8. The waste product urea is formed following the breakdown of
A glucose
B uric acid
C fatty acids
D amino acids
9. Nthabiseng wants to know whether beans contain oils or not. Which of the following
can she use?
A biuret test
B benedict’s solution
C ethanol and water
D iodine solution
10. The diagram shows a sweat gland with its blood supply.
What changes in concentrations of carbon dioxide and salt take place as blood passes
from P to Q?
Carbon dioxide
salt
A
decrease
decrease
B
decrease
increase
C
increase
decrease
D
increase
increase
11. Which of the following is needed for the transport of Oxygen by Red blood cells?
A nucleus
B haemoglobin
C contractile vacuole
D thick outer wall
12. Which of the following is a polysaccharide found in the liver tissues?
A glucose
B
glycogen
C
starch
D Cellulose
13. The importance of roughage in our diet is that;
A it gives us Energy
B it is largest part of faeces
C it prevents constipation
D it can be digested to form glucose
The pondweed was placed in hydrogencarbonate indicator solution, which was
red in
colour when the tube was set up. The tube was left for five hours in bright light,
as
shown in Fig. 4.2.
(Hydrogencarbonate indicator is purple in alkaline conditions, red in neutral
conditions
and yellow in acidic conditions.)
1. (i) Suggest what colour you might observe in the tube in Fig. 4.2 after five
hours in
bright light and give an explanation for this.
colour ......................................................................................................................
explanation ..............................................................................................................
..............................................................................................................................[2
]
(ii) One water shrimp was introduced into a similar tube with pondweed, Fig. 4.3,
and,
again, the tube was placed in bright light for five hours.
Suggest what colour you might observe and give an explanation for this.
colour
.......................................................................................................................
explanation
...............................................................................................................
..............................................................................................................................[2
]
(iii) Three water shrimps were introduced into a similar tube with pondweed, Fig.
4.4,
and, again, the tube was placed in bright light for five hours.
Suggest what colour you might observe and give an explanation for this.
colour ......................................................................................................................
explanation ..............................................................................................................
..............................................................................................................................[2
]
[Total : 12]
2. The diagram shows a typical animal cell and a typical plant cell.
(a) (i) Name the parts of the cells labelled A and B.
A
...............................................................................................................................
B
...........................................................................................................................[2]
(ii) Label on the diagram, with a letter C, another structure that occurs in both
cells. [1]
(b) For each of the following types of cell, state one way in which it is different
from the
animal cell in Fig. 4.1. State the function of each type of cell.
(i) nerve cell
difference
..................................................................................................................
.................................................................................................................................
.
function
.....................................................................................................................
...............................................................................................................................2
]
(ii) red blood cell
difference
..................................................................................................................
.................................................................................................................................
.
function
.....................................................................................................................
............................................................................................................................2]
Fig. 9.1 shows a section through a leaf. A leaf is designed for photosynthesis and
this process provides a supply of simple sugars for a plant.
3. i State the function of the chloroplasts in photosynthesis.
________________________________________________________________
___ [1]
ii Describe and explain the advantage of the distribution of the chloroplasts as
shown in Fig. 9.1.
________________________________________________________________
________________________________________________________________
_______ [2]
iii Suggest the function of the stomata and the spaces between the spongy
mesophyll cells in the process of photosynthesis.
________________________________________________________________
________________________________________________________________
________________________________________________________________
_____________[3]
(c) Materials can enter the cell through diffusion and osmosis.
(i) Define diffusion.
.................................................................................................................................
.
.................................................................................................................................
.
...............................................................................................................................2
]
(ii) Describe how osmosis differs from diffusion.
.................................................................................................................................
.
.................................................................................................................................
.
.................................................................................................................................
.
...............................................................................................................................2
]
4.
14. Fig2.1 shows a section of the human skin.
a) Label structures A, C and D
[3]
b) Describe how structures A and D help the body to respond to a drop in Body
temperature.
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________ [3]
15. The diagram below shows the main regions of the human alimentary canal and
associated glands.
Complete the table below.
Structure Name of structure
A
duodenum
B
Function
Secretes pancreatic juice
[8]
16. The diagram below shows a capillary network and the surrounding cells.
Fluid P
a) What is fluid P?
__________________________________________________________
[1]
b) When blood flows through the network, substances are exchanged between the
capillary and fluid P. For each of the sentences below, insert the word higher or
lower as appropriate:
i)
Carbon dioxide concentration is ______________ at X than at Y
ii)
Oxygen Concentration is ____________________ at X than at Y
iii)
Glucose concentration is ____________________ at X than at Y
[3]
c) State two differences in structure between blood vessel X and blood vessel Y.
i)
________________________________________________________
____________________________________________________
SECTION B
Answer questions on this section on a separate paper provided!
1. a) State the functions of 5 named parts of the male reproductive system.
b) (i) Describe the process of fertilization.
ii) Compare sperm cell and ovum, in terms of;
 Mobility
 Size and
 Life span
[5]
[2]
[3]
c) For a named sexually Transmitted disease, state;
i)
ii)
iii)
a causative agent
two symptoms
three ways to prevent it from spreading
2. a) The figure below shows some of the features of a typical wind-pollinated flower.
[6]
i)
Describe the features that make a typical wind-pollinated flower different from a typical
insect-pollinated flower.
[4]
ii)
Suggest how pollen produced by the flower above would differ from that of an insectpollinated flower.
[2]
b) Distinguish between the following;
i)
ii)
self-pollination and cross-pollination
translocation and transpiration
3. a) Define the term respiration.
b) By means of a table, distinguish between aerobic respiration and anaerobic respiration.
[4]
[2]
[3]
c) Describe and explain, the effect of physical exercise on;
i)
ii)
rate and depth of Breathing
Pulse rate
1. The diagram below represents the human circulatory system
[4]
a) Label blood vessels B, D and F on the diagram [3]
b) Which letter represents the blood vessel most likely to contain;
i) the highest concentration of glucose; ______________
ii) the lowest concentration of urea;
_______________
[2]
c) Name one substance which is in higher amount in blood vessel H than
In blood vessel B; ___________________________________
[1]
d) Describe two ways in which structure of blood vessel D differs from
structure of blood vessel E;
____________________________________________________________
________________________________________________________ [2]
2. The diagram below shows the main structures of the human female reproductive
system.
a) From the diagram, select the letter which shows where;
i) semen is released during sexual intercourse; ____________
ii)
fertilization occurs; _______________________________
iii) implantation occurs; ___________________________
[3]
b) Three different methods of birth control are listed below;
x – diaphram, y – contraceptive pill, z – sterilization
Write the letters x, y and z precisely on the part of the reproductive system where each
has its effect.
[3]
3. a) What are STDs?
_____________________________________________________________
b) What type of organism causes the following STDs;
i)
AIDS __________________________
ii)
Gonorrhoea ____________________
[2]
iii)
Syphilis ______________________
[3]
c) Which of the above cannot be successfully treated with antibiotics?
____________________________________________________
[1]
d) Gonorrhoea produces certain signs and symptoms in men.
i) Give two chief signs of gonorrhoea in men;
___________________________________________________________
__________________________________________________________ [2]
ii) What steps can be taken to control the spread of Gonorrhoea?
____________________________________________________________
________________________________________________________ [2]
4.The graph below shows effect of temperature on the rate of reaction of the digestive
enzyme amylase.
a) Explain the shape of the curve above.
________________________________________________________________________
_________________________________________________________
[2]
b) At what temperature does the reaction occur at its highest rate?
__________________________________________________________________ [1]
c) Into which two parts of the human gut is amylase secreted?
__________________________ and ________________________________
[2]
d) Complete the following table;
Substrate
Digestive enzyme
products
Protein
protease
amino acids
------------------------------- Amylase
----------------------------
----------------------------
-------------------------- fatty acids & glycerol
maltose
------------------------
Glucose
[5]
(e)__________________________________________________________________