IJMB Biology 102 Past Questions 2022; Biology 102 covers general biology and zoology, students sitting for this examination have been lectured at their accredited IJMB centres across the country.
SUBJECT: BIOLOGY PAPER II: GENERAL BIOLOGY AND ZOOLOGY
SCHEDULED: THURSDAY 23RD JUNE, 2022
TIME ALLOWED: THREE HOURS (3 HRS)
IJMB Biology 102 Past Questions 2022
INSTRUCTION: Answer questions ONE (1) and any THREE (3) other questions. Question ONE carries 40 marks. The others carry 20 marks each. Use clearly labelled diagrams and examples to illustrate your answer wherever appropriate.
1 (a) Explain the following terms:
(i) Fatty acids
(ii) Endocrine glands
(iii) Cellular respiration
(iv) Diploblastic organization
(b) (i) Using appropriate genetic symbols and showing your crossing, explain the possible blood groups of children whose father and mother her heterozygous with blood group A and blood group B respectively.
(ii) Assuming these parents have non-identical twins, what is the probability that the twins will have blood group A? (show your crossings)
(c) Fill in the blank spaces.
(i) ______a_____, ______b_____, ______c______ and ______d_____ are different tastes which can be detected by taste neurons in humans.
(ii) The arteries going from the right ventricle of the heart take blood to the ____e____
(iii) Each replicated chromosome consists of two identical/sister called _____f______
(iv) The haploid sex gamete in males is known as ______g______
(v) Blinking of the eyes is an example of ______h______
(vi) The highly muscular pharynx of Ascaris is for the ______i______ from the host.
(vii) _____j_____ is a major element in the synthesis of bones and teeth.
2. (a) Define:
(i) Reflex arc (ii) Reflex action
(b) Draw a large (8-9cm) labelled diagram of a reflex arc and explain its components.
3. (a) Draw a labelled diagram (8-9cm) of the tracheal system of insects.
(b) Mention three (3) functions of each of the following in insects;
i. Antennae
ii. Cuticle
iii. Wings
iv. Abdomen
(c) List any four (4) reasons for locomotion in animals.
4. (a) Explain the mechanism of perception of smell in man.
(b) Outline five (5) characteristics of the taxonomic class Arachnida.
5. Write short notes on any four (4) of the following;
(a) Smoking preservation
(b) Photoreceptors
(c) Albinism in man
(d) Red blood cell
(e) Factors affecting growth in animals
6. In a tabular form, name ten (10) organelles of an animal cell and give one function of each.
Check out; IJMB Biology 102 Past Questions 2022
