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BIO GR-8 MCQ--july,aug 03.doc
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Madhrasathul Ahmadhiyya, Male’
SECOND TERM TEST 2003
GRADE 8: BIOLOGY
Paper 1 Multiple Choice
Duration: 1 hour
Name: ……………………………………………………… Reg. No. ………….
Class: ………………………. Index: ………………….
Information and Instructions
Write your name, index number, class and register number.
There are forty questions in this paper.
For each question there are four possible answers. A, B, C and D. Choose the
one you consider correct and record your choice in soft pencil on a separate
answer sheet.
1 Which of the following exist only as parasites?
A ) Bacteria B) Fungi C) Protozoa D) Viruses
2 10g of starch was mixed with 53cm3 of enzyme solution. After 1 hour at 15C, 2.5g was changed
to sugar. The experiment was repeated at temperature of 25C. How much starch was broken
down in the second experiment?
A) 10g B) 20g C) 2.5g D) 5.0g
3 Which of the combinations identifies the function of each type of plant cell?
Palisade cells Xylem vessels Root hair cells
A) Photosynthesis Water transport Ion uptake
B) Photosynthesis Water transport Transpiration
C) Transpiration Sugar transport Ion uptake
D) Transpiration Sugar transport Sugar transport
4 The diagram shows an example of levels of organization in animal. Identify what is A?
A) Hepatic portal vein B) Circulatory system C) Nervous system D) Digestive system
5 The diagram shows some chemical molecules found in the human body and shows how they join
Madhrasathul Ahmadhiyya Second Term Test – 2003 Biology Grade 8 Paper 1 Page 1 of 6
to form larger molecules.
Identify molecules N and O
A) Amino acids and protein B) Fatty acids and fat
C) Glucose and Protein D) Glucose and glycogen
6 The diagram summarizes the early stages of sexual reproduction in an animal.
N O
Which one gives the correct number of chromosomes for N and O.
A) Diploid and Haploid B) Haploid and Diploid C) Diploid and Diploid D) Haploid and Haploid
7 Which organism can cause sexually transmitted disease such as syphilis and AIDS?
A) Bacteria Only B) Bacteria and Fungi C) Bacteria and Virus D) Fungi Only
8 Which structure in the plant cell contains chromosomes?
9 Which of the following is an energy-rich carbohydrate stored in large in quantities in liver and
muscle cells?
A) glucose B) glycogen C) haemoglobin D) starch
10 Which component of the diet prevents constipation?
A) Minerals B) Proteins C) Fibres D) Vitamins
11 The diagram shows four agar blocks that were placed in a dish and covered with a solution of a
coloured stain. Which block has the largest surface area to volume ratio and so will be completely
Madhrasathul Ahmadhiyya Second Term Test – 2003 Biology Grade 8 Paper 1 Page 2 of 6
stained most rapidly?
12 The diagram shows the alimentary canal where the enzyme responsible for the first stage of
protein digestion produced.
13 The Fig 13.1 is a drawing of a sample of a red blood cell seen under a microscope. The actual
size of the RBC is 0.007mm.
1cm
Fig 13.1
Calculate the magnification of Fig 13.2.(Give your answer to the nearest unites)
A) 1429 B) 1400 C) 1249 D) 1942
14 A mature xylem vessel in a woody plant has
A) a cell wall only B) a cell wall and a vacuole
C) a cell membrane, cytoplasm and a nucleus D) cytoplasm, a cell wall and a nucleus
15 Which substances are needed in the diet to prevent rickets?
A) calcium and vitamin B) iron and vitamin D C) iron and vitamin c D) calcium and vitamin D
16 Which chemical change takes place in mammals (eg. Human) but not in green plants?
Madhrasathul Ahmadhiyya Second Term Test – 2003 Biology Grade 8 Paper 1 Page 3 of 6
A) glucose cellulose B) starch glucose
C) glycogen glucose D) glucose starch
17 Cell wall of fungi is made of:
A) cellulose and polysaccharides B) protein and polysaccharides C) chitin D) cellulose
18 Which one of the following result of eating too much animal fat.
A) obesity B) constipation C) marasmus D) tooth ache
19 The virus nucleic core made from:
A) RNA only B) DNA only C) DNA or RNA D) Protein
20 Which of the following are not the main functions of the liver?
A) formation of bile B) deamination C) production of heat D) absorption of soluble digested food
21 During yoghurt production milk is heated to:
A) 9C B) 100C C) 190C D) 90C
22 Which of the following foods contains the highest concentrations of protein and iron?
A) citrus fruits B) fresh vegetables C) meat D) bread
23 The diagram shows four different cells as seen through a microscope.
1. 2. 3. 4.
Which cells are not plant cells?
A) 1,2 only B) 2 only C) 1,2,3 only D) 1,2,3 and 4 only
24 The enzymes used in cheese production is:
A) rennin B) pepsin C) amylase D) lipase
25 Name the stage which refers to the absorption of digested food into the blood stream?
A) ingestion B) absorption C) assimilation D) digestion
26 Which of the following chemical substance is present in the gastric juice, kills bacteria and
provides pH 2 to 3 to activate the protease enzyme?
A) NaOH B) mucus C) HCl D) NH4 OH
27 Which of the following do not have both nucleus and cell wall?
A) Muscle cell B) Red blood cell C) Root hair cell D) Xylem vessels
28 The diagram represents a model of enzyme action
Which term correctly identify A, B, and C?
A B C
Madhrasathul Ahmadhiyya Second Term Test – 2003 Biology Grade 8 Paper 1 Page 4 of 6
A) substrate enzyme product
B) product enzyme substrate
C) product substrate enzyme
D) enzyme product substrate
29 Which of the following differences between plant and animal cells is wrong?
30 The white sticky mixture of food and bacteria which builds up on the tooth is called:
A) plaque B) cement C) clot D) pain
31 Which secretion, released into the alimentary canal contains no enzyme but speeds up fat
digestion.
A) bile B) intestinal juice C) pancreatic juice D) saliva
32 The diagram below shows a section through a villus.
What is the function of structure X?
A) to absorb amino acids B) to transport glucose
C) to transport fats D) to carry blood
33 The table shows observations made during tests carried out on samples of a particular food.
What did the food contain?
34 The diagram below shows a cell from the leaf of a plant. Which part traps light energy?
Madhrasathul Ahmadhiyya Second Term Test – 2003 Biology Grade 8 Paper 1 Page 5 of 6
Plant cell Animal cell
A has a thick cell wall outside the cell
membrane.
does not have a cell wall
B does not have fixed regular shape has a fixed regular shape
C has a cell vacuole containing cell sap no cell vacuole, cytoplasm fills the cell
D often contains chloroplasts never contains chloroplasts
test observation
Biuret test for protein Purple colour
Benedicts test for
reducing sugar
Pale blue colour
Iodine test for starch Blue black colour
protein reducing sugar starch
A
B
C
D
35 The diagram shows an experiment using a partially permeable membrane.
What is the name of the process responsible for the movement of reducing sugar molecules into
the surrounding water?
A) absorption B) active transport C) diffusion D) osmosis
36 Which one of the following is not a correct statement about fats?
A) high in energy contents (i.e. 1g of fat contains 39KJ)
B) used for growth and tissue repair.
C) can be made from excess carbohydrates or proteins in the diet.
D) for energy, food storage and insulation are the main jobs.
37 Which of the following enters plant cell by active transport?
A) carbon dioxide B) nitrate ions C) oxygen D) water
38 Identify the dental formula of a (adult) man.
A) i = 2/2 c = 1/1 Pm = 2/2 m = 3/3 B) i = 3/3 c = 1/1 Pm = 3/3 m = 2/2
C) i = 0/3 c = 1/1 Pm = 3/3 m = 1/1 D) i = 1/2 c = 2/2 Pm = 3/2 m = 2/3
39
40
Which of the following micro organism related with alcohol production?
A) DNA virus B) Bacteria C) Yeast D) Penicillium
Starvation is particularly serious in children because they:
A) create resistance make them to become obesity B) only affect the growth
C) affect bones and teeth. D) stop growing and lose their resistance to diseases.
= GOOD LUCK =
Madhrasathul Ahmadhiyya Second Term Test – 2003 Biology Grade 8 Paper 1 Page 6 of 6
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