How well do you understand living things and their vital processes? Whether you are preparing for JAMB, WAEC, NECO and Post-UTME, these Biology past questions and answers cover such subjects as the chemistry of life, botany, evolution, genetics, ecology etc to help you know what to expect, improve your speed and confidence and be really prepared for the actual aptitude test.
oxidation
denitrification
reduction
phosphorylation
Correct answer is A
In biochemistry, chemosynthesis is the biological conversion of one or more carbon molecules (usually carbon dioxide or methane) and nutrients into organic matter using the oxidation of inorganic (e.g. hydrogen gas, hydrogen sulfide) or methane as a source of energy, rather than sunlight, as in photosynthesis.
In the male reproductive system of a mammal, sperm is stored in the?
vas deferens
urethra
epididymis
seminiferous tubules
Correct answer is C
No explanation has been provided for this answer.
Which of the following stimuli is likely to elicit a nastic response in an organism?
Wound lesion
Light intensity
Chemical substances
Gravity
Correct answer is B
No explanation has been provided for this answer.
The outer layer of the kidney where the Bowman's capsules are found is the
cortex
pelvis
medulla
pyramid
Correct answer is A
Each urinary tubule begins in the cortex as a cup-like structure known as the Bowman's capsule.
sweat glands
sebaceous glands
fatty cells
granular layer
Correct answer is B
The normal function of sebaceous glands is to produce and secrete sebum, a group of complex oils including triglycerides and fatty acid breakdown products, wax esters, squalene, cholesterol esters and cholesterol. Sebum lubricates the skin to protect against friction and makes it more impervious to moisture.