UTME 2021 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The number of plant species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomea spp (5), Sida spp (7) and Imperata spp (23). What is the percentage of occurrence of Imperata spp?
A. \( \frac{35}{100} \)
B. \( \frac{16}{100} \)
C. \( \frac{46}{100} \)
D. \( \frac{23}{100} \)
Question 2
The plants that grow in deserts or very dry areas are referred to as
A. hydrophytes.
B. epiphytes.
C. xerophytes.
D. mesophytes.
Question 3
Some of the features of an animal are scales, teeth, nares and backbone. The animal is likely to be a
A. toad
B. bird
C. lizard
D. rat
Question 4
People who suck petrol with their mouths run the risk of increasing in their blood the concentration of
A. iron
B. lead
C. calcium
D. magnesium
Question 5
The blood vessel which carries blood from the alimentary canal to the liver is the
A. hepatic artery
B. hepatic vein
C. hepatic portal vein
D. mesenteric artery.
Question 6
In the mammalian respiratory system, exchange of gases occurs in the
A. lungs
B. bronchi
C. bronchioles
D. alveoli.
Question 7
The villus in the small intestine is significant because it
A. increases the surface area for absorption
B. increases the surface area for digestion
C. assists in mixing digested food
D. assists in filtering undigested food.
Question 8
Aged erythrocytes are destroyed in the
A. pancreas
B. liver
C. lymph nodes
D. kidney.
Question 9
If both parents are heterozygous for a trait, the probability that an offspring will be recessive for that trait is
A. \( \frac{1}{2} \)
B. \( \frac{1}{4} \)
C. 1
D. \( \frac{3}{4} \)
Question 10
The order of passage of food in the digestive system is
A. ileum → caecum → large intestine → rectum
B. ileum → colon → caecum → rectum
C. large intestine → ileum → caecum → rectum
D. colon → caecum → ileum → rectum
Question 11
Which of the statements below is not characteristic of wind pollinated flowers?
A. Stigmas are usually large and feathery
B. Nectary is usually absent
C. The pollen grains have rough spiny surfaces
D. The flowers are not scented.
Question 12
Flatworms and roundworms are said to be invertebrates because
A. they are small animals
B. they can live inside the vertebrates
C. some of them are unicellular
D. they have no backbones.
Question 13
The correct sequence of the movement of urea during urine formation is
A. glomerulus → Bowman's capsule → convoluted tubule → Henle's loop → collecting tubule
B. glomerulus → Bowman's capsule → convoluted tubule → Henle's loop → convoluted tubule → collecting tubule
C. convoluted tubule → glomerulus → Henle's loop → Bowman's capsule → collecting tubule
D. convoluted tubule → Bowman's capsule → Henle's loop → glomerulus → collecting tubule.
Question 14
Which of the following food substances will produce a brick-red colour when warmed with Benedict's solution?
A. Glucose
B. Starch
C. Egg white
D. Maltose
Question 15
Which of the following is true in blood transfusion?
A. A person of blood group AB can donate blood only to another person of blood group AB.
B. Persons of blood groups A and B can donate or receive blood from each other.
C. A person of blood group AB can receive blood only from persons of blood group A or B.
D. A person of blood group O can donate only to a person of blood group O.

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