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Exam (elaborations)BIOLOGY
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Exam of 119 pages for the course BUSSINESS at WJEC (GOOD FOR EXAM)
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BOOK 1 MCQSUNIT NO. (01) D. Turgor Force
7. If the eyepiece of a microscope is marked 10X
1. The branch of biology, which deals with the and the high power objective is marked 44X,
life process, and function of processes is the total magnification is:
known as: A. 100
A. Physiology B. 144
B. Pathology C. 440
C. Histology D. 1044
D. Evolution
8. Which one of the following areas of biological
study could produce evidence to prove
2. Discovered the microscopic creature under conclusively that two organisms belong to
microscope in the red blood cells of malarial the same species?
patient: A. Anatomy
A. Ronald Ross B. Embryology
B. Laveran C. Genetics
C. Grassy D. Physiology
D. A.F.A king
9. _________ is a science of exception:
A. Biology
3. Physical basis of life is: B. Zoology
A. Nucleotide and proteins C. Botany
B. Nucleus D. Pathology
C. Cell
D. Protoplasm 10. The branch of biology, which deals with the
continuous adaptation of living organisms to
their environment, is known as:
4. The life was evolved first: A. Adaptation
A. On earth B. Evolution
B. In water C. Similarity
C. In sky D. Genetics
D. On the hill
11. Palaeobotany is study of:
5. The ________ structure was first proposed by A. Living plants
Robertson: B. Dead plants
A. Cellulo-protein C. Fossil plants
B. Star protein D. Fossil animas
C. Cylo protein
D. Lipo protein 12. The word Biology has been derived from
_________ language.
6. Opening and closing of stomata is controlled A. English
by which of the following taking place in the B. Latin
guard cells? C. Greek
A. Turbidity D. French
B. Turgidity
C. C. Flaccidity
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,13. The name malaria is a combination of two 4. Steroids consist of _______ 6-membred
_________ words. carbon rings and one 5-membred carbon
A. Italian ring.
B. Latin A. Four
C. English B. Three
D. French C. Two
D. Five
14. It is currently estimated that the age of the E. Six
earth is about:
A. 1 billion years 5. What occurs when sucrose is broken down
B. 4 billion years to monosaccharides?
C. 1 light year A. reducing sugars and releasing water
D. 100 billion years B. condensation of reducing sugars using
water
15. An educated guess is known as ______. C. hydrolysis, releasing reducing sugars and
A. Hypothesis releasing water
B. Theory D. hydrolysis, releasing reducing sugars and
C. Statement using water
D. Problem
6. The structure of a lipid contains all of the
following EXCEPT:
UNIT NO. (02) A. A carboxyl group
B. A CH2O basic structure
1. If one ribose molecule were bonded to one C. A glycerol molecule
adenine molecule and one Phosphate D. A fatty acid molecule
molecule, we would have a E. An OH group
A. Ribosome
B. Nucleotide 7. Stearin (C57 H10 O6) is an important example
C. Nucleic acid of:
D. ATP A. Carbohydrates
E. ADP B. Proteins
C. Waxes
2. An organic compound in which hydrogen and D. Acylglycerol
oxygen are present in the same ratio as in E. Nucleic Acids
water is
A. Fat 8. The above diagram represents the process
B. Carbohydrate of:
C. Protein A. Hydrolysis
D. Nucleic acid B. Condensation
E. All of the above C. Neutralization
D. Metabolism
3. Deficiency of vitamin A causes
A. Rickets 9. Sugar in stored in the liver as:
B. Osteomalacia A. Starch
C. Delay in coagulation of blood B. Glycogen
D. Night blindness C. Maltose
E. Anemia D. Cellulose
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,10. Which of the following is correct: 17. Which of the following organic compounds
A. Glucose + fructose = maltose represents a protein?
B. Glucose + galactose = sucrose A. C12H35COOH
C. Glucose + glucose = maltose B. (C6H10O5) n
D. Glucose + glucose = sucrose C. C708H1130O224N180S4P4
D. C12H22O11
11. Polysaccharides are synthesized in plants by
18. Assuming that only 20 commonest amino
the process of
acids are present in a given organism, how
A. Hydrolysis many different dipeptides might
B. Oxidation theoretically be found in it?
C. Condensation A. 20
D. Glycolysis B. 40
C. 100
12. Which one of the following is not D. 400
immediately essential for protein synthesis?
A. ATF 19. Why do proteins have a buffering effect in
B. Enzyme cells?
A. They are non - polar
C. Glucose
B. They are amphoteric
D. mRNA
C. They contain basic amino acids
D. They are a major component of cell
13. The bond present between carbohydrate surface membranes
units 20. The most abundant component of a living
A. Peptide bond cell is
B. Covalent bond A. Carbohydrates
C. Glycosidic bond B. Proteins
D. Electrostatic bond C. Lipids
D. Water
14. A lipid molecule is composed of glycerol
21. Which of the following are true:
fatty acid in a ratio of:
A. glucose + fructose = maltose
A. 1:1
B. glucose + galactose = sucrose
B. 1:3
C. glucose + glucose = maltose
C. 1:4
D. glucose + glucose = sucrose
D. 1:2
22. Which of the following molecules contain
15. The formula of glyceraldehyde is:
amino acids?
A. C3H6O4
A. Ascorbic acid
B. C3H6O3
B. Cellulose
C. C6H12O6
C. Collagen
D. C6H14O7
D. Glycogen
16. In AMYLOPECTIN the linkage is:
23. The _________ structure was first proposed
A. 1.3
by Robertson:
B. 1.6
A. Cellulo-protein
C. 2.6
B. Star protein
D. 6.6
C. Cyto protein
D. Lipoprotein
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, 31. The test of reducing sugars can be done by
24. The distinctive characteristic and functional using:
group of fats is: A. Cu+2 ions
A. Ketone B. Cu+ ions
B. Alcohol C. Hg+ ions
C. Peptide D. None of the above
D. Ester
32. Regarding starch molecule which statement
25. Lipids are different types simple lipids is correct?
include, natural fats, and oils and: A. Amylase chain of starch is branched,
A. Waxes amylopectin is not branched
B. Sterols B. Amylopectin chain is branched, amylose is
C. Lipids not branched
D. Cholesterols C. Both chains are branched
D. Both chains are unbranched
26. Cellulose is:
A. Disaccharide 33. Assuming that only 20 commonest amino
B. Pentose Polysaccharide acids are present in a given organism, how
C. Hexane Polysaccharide many different dipeptides might
D. Mucopolysaccharide theoretically be found in it?
A. 20
27. Which of the following is not made up of B. 40
hexose sugar subunits: C. 100
A. Sucrose D. 400
B. Starch E. 10
C. Glycogen
D. Insulin 34. Which of the following has quaternary
structure;
28. How many carbon atoms are found in A. Myoglobin
monosaccharide compound? B. Actin
A. 1 to 5 Carbon atoms C. Tropomyosin
B. 3 to 6 Carbon atoms D. Hemoglobin
C. 5 to 10 Carbon atoms
D. 5 to 15 Carbon atoms 35. In a typical nucleotide the nitrogenous base
is attached to _________ carbon of pentose
29. What is general formula of Carbohydrates? sugar:
A. Cn H2n On A. 6th
B. C2n Hn On B. 5th
C. Cn H2n O2n C. 4th
D. None of these D. 3rd
E. 1st
30. Polysaccharides of two types, storage
polysaccharides and: 36. Lysosomes function in:
A. Structural polysaccharides A. Protein synthesis
B. Amino polysaccharides B. Processing
C. Functional polysaccharides C. Intracellular digestion
D. Cellulosic polysaccharides D. Lipid synthesis
E. Carbohydrate synthesis
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