POST UTME CRAWFORD UNIVERSITY 2023 Biology | Objective

Are you preparing for POST UTME CRAWFORD UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2023 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
In a eukaryotic cell, what is the primary function of the Golgi apparatus?
A. Protein synthesis
B. Cell signaling
Correct C. Lipid modification and sorting
D. Cell division

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 2
A researcher is studying the effect of pH on the growth of E. coli. Which of the following best describes the relationship between pH and bacterial growth?
A. pH has a direct linear relationship with bacterial growth
Correct B. pH has an inverse \logarithmic relationship with bacterial growth
C. pH has no effect on bacterial growth
D. pH has a direct \logarithmic relationship with bacterial growth

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 3
A diagram of a plant's xylem and phloem is shown below. What is the primary function of the xylem?
Correct A. Transport of water and minerals
B. Transport of sugars and amino acids
C. Cell signaling
D. Cell division

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 4
A researcher is studying the effect of temperature on the growth of a microorganism. Which of the following best describes the relationship between temperature and microbial growth?
A. Temperature has a direct linear relationship with microbial growth
B. Temperature has an inverse \logarithmic relationship with microbial growth
C. Temperature has no effect on microbial growth
Correct D. Temperature has a direct \logarithmic relationship with microbial growth

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 5
A diagram of a cell's mitotic spindle is shown below. What is the primary function of the mitotic spindle?
Correct A. Separation of chromosomes during cell division
B. Transport of water and minerals
C. Cell signaling
D. Cell division

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 6
In the context of classification of living things, what is the primary function of the kingdom level?
A. To group organisms based on their cell structure
Correct B. To group organisms based on their genetic makeup
C. To group organisms based on their metabolic processes
D. To group organisms based on their eco\logical niches

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 7
A diagram of the human eye is shown below. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
Correct C. Retina
D. Lens

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 8
In the process of respiration, what is the primary function of the mitochondria?
Correct A. To produce ATP through cellular respiration
B. To break down glu\cose into carbon dioxide and water
C. To synthesize proteins from amino acids
D. To store genetic information in the form of DNA

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 9
A diagram of the human reproductive system is shown below. Which part of the system is responsible for producing sperm?
Correct A. Testes
B. Epididymis
C. Vas deferens
D. Prostate gland

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 10
In the context of microorganisms and diseases, what is the primary function of the immune system?
Correct A. To produce antibodies to fight off pathogens
B. To produce cytokines to activate immune cells
C. To produce interferons to inhibit viral replication
D. To produce complement proteins to lyse pathogens

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 11
The Hardy-Weinberg principle states that allele and genotype frequencies in a population will remain cons\tant from generation to generation in the absence of other evolutionary influences. Which of the following is a consequence of the Hardy-Weinberg principle?
A. Genetic drift is the primary mechanism of evolution.
B. Genetic variation is increased in the population.
C. The frequency of a dominant allele is always greater than the frequency of a recessive allele.
Correct D. The population is in equilibrium, meaning that allele and genotype frequencies remain cons\tant.

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 12
In the process of osmoregulation, the kidneys play a crucial role in maintaining the balance of electrolytes and water in the body. Which of the following is a function of the kidneys in osmoregulation?
A. Regulating blood pressure through the renin-angioten\sin-aldosterone system.
B. Excreting excess electrolytes and water through the urine.
C. Producing hormones that stimulate the release of water from the body.
Correct D. Maintaining the balance of electrolytes and water in the body through the regulation of electrolyte excretion.

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 13
The process of respiration involves the exchange of gases between the body and the environment. Which of the following is a function of the lungs in respiration?
A. Regulating blood pressure through the renin-angioten\sin-aldosterone system.
Correct B. Exchanging oxygen and carbon dioxide through the process of gas exchange.
C. Producing hormones that stimulate the release of water from the body.
D. Maintaining the balance of electrolytes and water in the body through the regulation of electrolyte excretion.

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 14
The process of genetics involves the study of heredity and variation. Which of the following is a type of genetic variation?
A. Genetic drift.
Correct B. Mutation.
C. Genetic recombination.
D. Gene flow.

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 15
The nervous system is responsible for transmitting and proces\sing information. Which of the following is a type of neural transmission?
A. Electrical transmission.
Correct B. Chemical transmission.
C. Mechanical transmission.
D. Thermal transmission.

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 16
In the context of cell division, what is the primary function of the centrioles during the prophase stage of mitosis?
Correct A. To form the spindle fibers
B. To replicate the DNA
C. To condense the chromosomes
D. To form the nuclear envelope

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 17
A patient presents with symptoms of a viral infection. Which of the following microorganisms is most likely responsible for this condition?
A. Bacteria
B. Fungi
C. Parasites
Correct D. Viruses

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 18
In the context of tissue structure, what is the primary function of the basement membrane?
A. To provide structural support
B. To regulate cell growth
C. To facilitate cell migration
Correct D. To maintain tissue integrity

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 19
A patient presents with symptoms of a bacterial infection. Which of the following antibiotics is most likely effective against this condition?
Correct A. Penicillin
B. Erythromycin
C. Ciprofloxacin
D. Vancomycin

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 20
In the context of organ systems, what is the primary function of the nervous system?
A. To regulate body temperature
B. To facilitate digestion
C. To control movement
Correct D. To transmit nerve impulses

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 21
In the context of reproductive bio\logy, what is the primary function of the corpus luteum in the ovaries?
Correct A. To produce progesterone and maintain pregnancy
B. To produce estrogen and stimulate ovulation
C. To produce testosterone and regulate libido
D. To produce follicle-stimulating hormone and stimulate follicular growth

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 22
A diagram of the human eye is shown below. Which part of the eye is responsible for adjusting the size of the pupil?
A. Cornea
Correct B. Iris
C. Retina
D. Lens

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 23
In the context of classification of living things, what is the primary function of the kingdom level?
Correct A. To group organisms based on their cell structure
B. To group organisms based on their body structure
C. To group organisms based on their metabolic processes
D. To group organisms based on their genetic makeup

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 24
A diagram of the human respiratory system is shown below. Which part of the system is responsible for exchanging oxygen and carbon dioxide?
A. Trachea
B. Bronchi
Correct C. Lungs
D. Diaphragm

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 25
In the context of coordination in living organisms, what is the primary function of the nervous system?
A. To regulate body temperature
B. To control movement and balance
Correct C. To process and integrate sensory information
D. To produce hormones and regulate metabolism

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Help others prepare! Share this practice hub:
Chat with Support