Biology 1 - Objective Test Questions
- The excretory product in protozoans is
- amino acid.
- uric acid.
- ammonia.
- urea..
- Which of the following is a living organism?
- Muscle
- Nucleus
- Yeast
- Mitochondrion
- Which of the following organisms is the most specialized?
- Paramecium
- Amoeba
- Spirogyra
- Rhizopus
- Active transport can be defined as the movement of
- substances from a region of high concentration to a region of low concentration.
- substances from a region of low concentration to a region of high concentration across a living cell membrane.
- substances across a living cell membrane using energy from the cell.
- movement of molecules in a medium.
- Which of the following cell inclusions can destroy other cell organelles?
- Centriole
- Ribosome
- Lysosome
- Mitochondrion.
- In which of the following yam tissues will osmosis occur?
- Boiled and peeled
- Raw and peeled
- Boiled and peeled
- Roasted and peeled.
- The line XZ in the diagram below represents an actual distance of 10.0 cm and the length of the diagram is 5.0 cm. What is the magnification of the diagram?
- x 0.2
- x 0.5
- x 2.0
- x 50.0
- The following events occur during mitosis in a cell:I. Chromatids separate; II. Chromosomes become visible; III. Chromosomes align at the equator; IV. Cytoplasm divides (Cytokinesis). The correct sequence of the events is
- III, II, IV, I.
- II, III, I, IV.
- II, I, III, IV.
- II, IV, I, III.
- Which of the following statements about asexual reproduction is correct?. It
- always involves one parent but the offspring is genetically different from the parent.
- may involve two parents but the offspring is always identical to one parent.
- always involves one parent and the offspring is genetically identical to the parent.
- involves two parents but the offspring is not genetically identical to any of the parents.
The diagram below is an illustration of a mammalian bone. Use it to answer questions 10 and 11.
- The bone illustrated above is the
- femur.
- humerus.
- radius.
- ulna.
- The function of the part labelled L is to
- fit into the glenoid cavity of the scapula.
- fit into the acetabulum of the pelvic girdle.
- support the lower arm.
- prevent the arm from bending backwards.
- Which of the following processes is not a function of the mammalian skin?
- Regulation of body temperature
- Reception of external stimuli
- Excretion
- Gaseous exchange.
- The legs of an accident victim with a fractured vertebral column and injured spinal cord could not be raised because
- impulses from receptors in the legs cannot travel to the brain.
- impulses from the brain cannot travel to the legs.
- chemical substances will be released at synapses in the central nervous system.
- reflex actions cannot take place in the legs.
- Which of the following conditions in flowering plants enhance self-pollination?
- Cleistogamy
- Heterostyly
- Protandry
- Protogyny.
The diagram below is an illustration of the left side of the human cerebrum.
- The part labelled X controls
- general memory.
- speech.
- sight.
- respiratory functions.
Use the diagram below to answer question 16 only
- The diagram above is an illustration of
- normal sight.
- short sightedness.
- correction of long sightedness.
- correction of short sightedness.
- The inability to maintain proper balance of the body in humans may be due to a defect in the
- cochlea.
- Eustachian tube.
- semi-circular canals.
- oval window.
- The following substances pass into the blood of the foetus from the mother's blood via the placenta except
- carbon dioxide.
- glucose.
- viruses.
- antibodies.
- An inferior ovary of a flower is situated
- below the floral parts.
- above the floral parts.
- at the same level with all the floral parts.
- at the centre of the floral parts.
- Older parts of plant roots do not normally absorb water because
- they lack xylem.
- they have small surface area.
- the phloem is dead.
- they lack root hairs.
- Question 21
- Option a
- Option b
- Option c
- Option d
- Question 22
- Option a
- Option b
- Option c
- Option d
- Question 23
- Option a
- Option b
- Option c
- Option d
- Question 24
- Option a
- Option b
- Option c
- Option d
- Question 25
- Option a
- Option b
- Option c
- Option d
- Question 26
- Option a
- Option b
- Option c
- Option d
- Question 27
- Option a
- Option b
- Option c
- Option d
- Question 28
- Option a
- Option b
- Option c
- Option d
- Question 29
- Option a
- Option b
- Option c
- Option d
- Question 30
- Option a
- Option b
- Option c
- Option d
- Question 31
- Option a
- Option b
- Option c
- Option d
- Question 32
- Option a
- Option b
- Option c
- Option d
- Question 33
- Option a
- Option b
- Option c
- Option d
- Question 34
- Option a
- Option b
- Option c
- Option d
- Question 35
- Option a
- Option b
- Option c
- Option d
- Question 36
- Option a
- Option b
- Option c
- Option d
- Question 37
- Option a
- Option b
- Option c
- Option d
- Question 38
- Option a
- Option b
- Option c
- Option d
- Question 39
- Option a
- Option b
- Option c
- Option d
- Question 40
- Option a
- Option b
- Option c
- Option d
- Question 41
- Option a
- Option b
- Option c
- Option d
- Question 42
- Option a
- Option b
- Option c
- Option d
- Question 43
- Option a
- Option b
- Option c
- Option d
- Question 44
- Option a
- Option b
- Option c
- Option d
- Question 45
- Option a
- Option b
- Option c
- Option d
- Question 46
- Option a
- Option b
- Option c
- Option d
- Question 47
- Option a
- Option b
- Option c
- Option d
- Question 48
- Option a
- Option b
- Option c
- Option d
- Question 49
- Option a
- Option b
- Option c
- Option d
- Question 50
- Option a
- Option b
- Option c
- Option d
Biology 2 - Theory Questions
Section A - For All Candidates
- List three characteristics of living organisms.
- Explain briefly the characteristics listed in 1(a)(i) above.
- In a tabular form, state four differences between plants and animals.
- Name one organism that exhibits both plant and animal features.
- State four animal features and two plant features possessed by the organism named in 1(c)(i) above.
- Define the following terms:
- elimination
- excretion
- secretion
- Describe the digestion of boiled fish in the gut of humans.
- Make a diagram 8 cm—10 cm long of a longitudinal section of a villus and label fully.
- Define the following terms:
- Explain briefly the following ecological terms
- biosphere
- habitat
- Describe the mode of nutrition in a named carnivorous plant.
- State three reasons why the dispersal of fruits and seeds are importatnt.
- State six methods of conserving soil.
- Explain briefly the following ecological terms
- A survey to determine blood groups was carried out on 250 people living in a community. The results are represented in the table below.
Blood group Percentage A 8.0 B 14.0 AB 32.8 O 45.2 - Explain the term co-dominance.
- Calculate the number of individuals with co-dominant blood group.
- What is the total number of individuals in the table that are able to donate blood to an accident victim with blood group B?
- A man whose blood group Is heterozygous A is married to a woman whose blood group is AB. With the aid of a genetic diagram, suggest the possible blood groups of their children.
Section C - For Candidates In Nigeria Only
- State five reasons why animals move from place to place.
- State one function of each of the following structures found in plants:
- epidermis;
- phloem;
- sclerenchyma.
- Give two examples each of the following types of organisms:
- parasitic plants;
- saprophytes
- State two adaptive features of plants which inhabit salt water swamp.
- State two factors each which result in:
- increase
- decrease, in population density.
- Mention four ways in which modern agricultural activities may threaten the survival of species.
- State three reasons why mitosis is important to living organisms.
- State three causes of food spoilage.
Biology 3 - Practical Questions
Section A - For All Candidates
- Observe specimens A, B, C and D closely and use them to answer questions 1(a) to 1(e).
- Classify specimen A into its division and class.
- State three observable features of specimen A which are characteristics of the class mentioned in 1(a) (i) above.
- State the relationship between specimen A and:
- specimen B;
- specimen C;
- specimen D.
- From your observations of specimens B and C, what type of plant is specimen A?
- Suggest the agent of pollination of specimen B.
- State two reasons for the answer in 1 (c) (ii) above.
- Classify specimen D fully according to origin and structure.
- Make a drawing 8 cm— 10 cm long of specimen C and label fully.
- Study specimens E and F carefully and use them to answer questions 2(a) (i) to 2(a)(iii).
- State the class to which each of specimens E and F belong.
- List four observable features each of specimens E and F.
- State how each of the observed features in 2(a) (ii) adapt each of specimens E and F to their habitats.
- Study specimen G and use it to answer questions 2(b) (i) to 2(b)(ii).
- Classify specimen G into its phylum and class.
- State four observable features of specimen G.
- Name one habitat of specimen G.
- Study specimens E and F carefully and use them to answer questions 2(a) (i) to 2(a)(iii).
Section C - For Candidates in Nigeria Only
- Study specimens, L, M and N carefully and use them to answer questions 4(a) to 4(c).
- State the habitats of specimens L, M and N.
- State the modes of nutrition of specimens L, M and N.
- Explain how each of specimens Land M are adapted to their modes of feeding.
- Describe briefly the relationship that exists among specimens L, M and N.
- State two ways in which specimen M is of economic importance.
- State one way in which specimen M can be controlled.
- Make a drawing 8cm— 10cm long of specimen M and label fully.