Biology Multiple Choice Exam
Name: ______________________
1. The scientific method involves the following order of steps:
a. Observation, Results, Test, Conclusion, Hypothesis
b. Observation, Test, Results, Conclusion, Hypothesis
c. Observation, Hypothesis, Test, Results, Conclusion
d. Hypothesis, Observation, Results, Test, Conclusion
2. A control in an experiment is:
a. Always water
b. Necessary to be able to compare to the tests
c. Used to reduce error in experiments
d. Used to increase safety in an experiment
3. The characteristics of life are organisation, nutrition, excretion, response and:
a. Digestion
b. Secretion
c. Defecation
d. Reproduction
4. Metabolism is:
a. Some of the chemical reactions occurring in the body
b. The sum of all of the chemical reactions occurring in the body
c. The same as respiration
d. The process of controlling chemical reactions
5. The elements that make up dissolved salts in living organism are:
a. Sodium, magnesium, potassium, chlorine, and calcium
b. Chromium, iodine, chlorine, potassium and fluorine
c. Iron, oxygen, carbon, zinc, and sodium
d. Sodium, fluorine, chlorine, zinc, and copper
6. The trace elements present in all living oragnisms are:
a. Gold, silver, bronze
b. Iron, zinc, copper
c. Copper, sulphur, cobalt
d. Iodine, fluorine, polonium
7. The elements that make up protein are:
a. Carbon, helium, oxygen, fluorine
b. Carbon, hydrogen, oxygen, nitrogen
c. Calcium, helium, boron, sulphur
d. Cadmium, hydrogen, osmium, nitrogen
8. The elements that make up carbohydrate are:
a. Carbon, helium and oxygen
b. Boron, nitrogen and oxygen
c. Carbon, hydrogen and oxygen
d. Calcium, hydrogen and oxygen
9. Carbohydrate is made up of individual units known as:
a. Amino acids
b. Fatty acids
c. Vitamins
d. Monosaccharides
10. Glucose, fructose and galactose are examples of:
a. Monosaccharides
b. Disaccharides
c. Trisaccharides
d. Polysaccharides
11. Maltose, sucrose and lactose are examples of:
a. Monosaccharides
b. Disaccharides
c. Trisaccharides
d. Polysaccharides
12. Starch, glycogen and cellulose are examples of:
a. Monosaccharides
b. Disaccharides
c. Trisaccharides
e. Polysaccharides
13. The test used for starch is:
a. Iodine
b. Bromine
c. Fluorine
d. Chlorine
14. The test for reducing sugars uses:
a. Biuret reagent
b. Benedict’s solution
c. Copper sulphate solution and sulphuric acid
d. Iodine
15. The test for protein uses:
a. Copper sulphate solution and sodium hydroxide
b. Benedict’s solution
c. Sulphuric acid
d. Iodine
16. A deficiency of vitamin A can lead to:
a. Scurvy
b. Night-blindness
c. Beri-beri
d. Rickets
17. The function of vitamin D in the body is:
a. Healthy bones and teeth
b. Formation of clotting factors
c. Healthy heart
d. Protect the brain
18. Lack of vitamin C in the diet leads to:
a. Hearing loss
b. Heart enlargement
c. Scurvy
d. Mental retardation
19. The function of folic acid in the body is:
a. Proper development of the brain and spinal cord
b. To maintain strong bones and teeth
c. To keep eyes healthy
d. To prevent skin cancer
20. The function of calcium in the body is:
a. Maintain good eyesight
b. Healthy bones and teeth
c. Healthy skin
d. Prevent diabetes
21. The function of the cell membrane is to:
a. Control what enters and leaves the cell
b. Allow entry of all substances in the body
c. Only allow entry and exit of water
d. Only allow entry and exit of food molecules
22. Ribosomes:
a. Help to directly protect the cell from invaders
b. Synthesise proteins
c. Synthesise carbohydrates
d. Breakdown proteins
23. Osmosis is the diffusion of:
a. Any substance across the cell membrane
b. Water across the cell membrane
c. Glucose across the cell membrane
d. Sodium and potassium ions across the cell membrane
24. An experiment was set up to show the effect of osmosis on a semi-permeable membrane.
The first membrane had a 5% sucrose solution enclosed inside it and was placed in a 50%
sucrose solution. The second membrane had a 30% sucrose solution enclosed inside it and
was placed in a 25% sucrose solution. The result was:
a. First membrane swelled up and second stayed the same size
b. First membrane shrank a little and second swelled up a lot
c. First membrane shrank a lot and second swelled up only a little
d. First membrane swelled up a lot and second swelled up only a little
25. What is the process whereby a plant cell shrivels up due to water loss:
a. Plasmolysis
b. Cytolysis
c. Glycolysis
d. Photosynthesis
26. The four types of animal tissue are:
a. Muscular, nervous, endocrine, connective
b. Epithelial, connective, muscular, nervous
c. Connective, cardiac, digestive, excretory
d. Skeletal, nervous, blood, connective
27. The three types of plant tissue are:
a. Vascular, dermal, ground
b. Leaf, vascular, root
c. Root, vascular, cellulose
d. Stem, dermal, vascular
28. Enzymes are made from:
a. Proteins
b. Carbohydrates
c. Lipids
d. Vitamins
29. Enzyme action is affected by:
a. Light and heat
b. Temperature and pH
c. pH and light
d. Cold and dark
30. In an experiment to test the effect pH has on amylase activity, the pH had to be adjusted to
different levels whereas the concentration of amylase and another factor were kept constant.
What was used to keep the pH at the right value in each of the different tests and what other
factor was kept constant?
a. Acid and light levels
b. Alkali and light levels
c. Buffers and temperature
d. Buffers and light levels
31. The advantage of using immobilised enzymes is that they can be:
a. Used to make any product needed by the food industry
b. Used again and again
c. Used at any temperature
d. Used to prevent microbial growth in the bioreactor
32. The induced fit hypothesis of enzyme action states that the enzyme:
a. Produces product very quickly
b. Has an active site that corresponds in shape to that of the substrate
c. Produces substrate very quickly
d. Can be used in any biochemical reaction
33. The word equation of photosynthesis is:
a. Water + glucose + oxygen → carbon dioxide + light
b. Carbon dioxide + water + light → glucose + oxygen
c. Carbon dioxide + water + glucose → light + oxygen
d. Light + water + glucose → carbon dioxide + oxygen
34. What are the products of the cyclic pathway of the light stage of photosynthesis?
a. Oxygen
b. Carbon dioxide
c. ATP
d. NADPH
35. What are the products of the non-cyclic pathway of the light stage of photosynthesis?
a. Oxygen, ATP and NADPH
b. Electrons, ADP, and carbon dioxide
c. Oxygen, ATP, and carbon dioxide
d. Chlorophyll, ATP and NADP+
36. The dark stage produces carbohydrate from the products of the light stage. What other
compound is required that is not a product of the light stage?
a. Water
b. Carbon dioxide
c. Chlorophyll
d. NADP–
37. The word equation for respiration is:
a. Water + glucose + oxygen → carbon dioxide + energy
b. Glucose + oxygen → energy + carbon dioxide + water
c. Carbon dioxide + water + glucose → energy + oxygen
d. Heat + water + glucose → carbon dioxide + oxygen
38. Glycolysis is:
a. Oxygen-independent and occurs in the mitochondrion
b. Oxygen-dependent and occurs in the cytoplasm
c. Oxygen-independent and occurs in the cytoplasm
d. Oxygen-dependent and occurs in the mitochondrion
39. The end product of glycolysis is:
a. Pyruvate
b. Acetyl coenzyme A
c. Glucose
d. Carbon dioxide
40. ATP stands for:
a. Adenine triphosphate
b. Adenosine triphosphate
c. Alanine triphosphate
d. Alum triphosphate
41. Krebs cycle is:
a. Oxygen-independent and occurs in the mitochondrion
b. Oxygen-dependent and occurs in the cytoplasm
c. Oxygen-independent and occurs in the cytoplasm
d. Oxygen-dependent and occurs in the mitochondrion
42. The electron transport chain is:
a. Oxygen-independent and occurs in the mitochondrion
b. Oxygen-dependent and occurs in the cytoplasm
c. Oxygen-independent and occurs in the cytoplasm
d. Oxygen-dependent and occurs in the mitochondrion
43. The four components of blood are:
a. Red blood cells, water, glucose, haemoglobin
b. Protein, white blood cell, red blood cells, vitamins
c. Plasma, red blood cells, white blood cells, platelets
d. Water, protein, carbohydrate, minerals
44. The four blood groups are:
a. XX, XY, X and Y
b. AB, A, B, and o
c. o, XX, YY, B
d. AB, Rh+, Rh–, o
45. A universal donor is:
a. A person who can donate blood to only one blood group
b. A person who can donate blood to two blood groups
c. A person who can donate blood to anyone
d. A person who can accept blood from any blood group
46. Rhesus positive people have:
a. Positively-charged blood cells
b. Negatively charged blood cells
c. A specific protein on their blood cells
d. A specific vitamin in their blood
47. Oxygenated blood is transported by the:
a. Right side of the heart
b. Left side of the heart
c. Atria
d. Ventricles
48. The hepatic portal vein carries blood from the:
a. Liver to the digestive system
b. Heart to the digestive system
c. Liver to the heart
d. Digestive system to the liver
49. Arteries have:
a. Large lumen, thick wall, and valves
b. Small lumen, thick wall, and no valves
c. Large lumen, thin wall, and valves
d. Small lumen, thin wall, and no valves
50. Systole and diastole:
a. Both involve relaxation of the cardiac tissue
b. Involve contraction and relaxation, respectively
c. Involve relaxation and contraction, respectively
d. Both involve contraction of the cardiac tissue