POST UTME REDEEMERS UNIVERSITY 2019 Biology | Objective

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Question 1
The process of meiosis is essential for the production of gametes in sexually reproducing organisms. Which of the following is a characteristic of meiosis?
A. It results in the production of four haploid daughter cells
B. It results in the production of two diploid daughter cells
C. It is a type of mitosis
D. It is a type of meiosis
Question 2
A diagram of a plant's root system is shown below. Which of the following is the primary function of the root hairs?
A. Absorption of water and minerals
B. Transport of sugars and amino acids
C. Support and storage
D. Protection and defense
Question 3
In a eukaryotic cell, the process of photosynthesis occurs in the chloroplasts. What is the primary function of the chloroplasts in this process?
A. To produce ATP and NADPH
B. To produce glu\cose and oxygen
C. To produce amino acids and lipids
D. To produce proteins and nucleic acids
Question 4
A diagram of a plant's xylem and phloem tissues is shown below. Which of the following is the primary function of the xylem?
A. Transport of water and minerals
B. Transport of sugars and amino acids
C. Support and storage
D. Protection and defense
Question 5
In a photosynthetic pathway, which of the following electron carriers is responsible for the transfer of electrons from plastocyanin to the reaction center?
A. Plastocyanin
B. Ferredoxin
C. Cytochrome b6f
D. P700
Question 6
Asexual reproduction in plants can occur through the following methods EXCEPT:
A. Budding
B. Fragmentation
C. Runners
D. Pollination
Question 7
In asexual reproduction, what is the primary mechanism by which genetic variation is introduced into the offspring?
A. Mutation
B. Genetic recombination
C. Gene duplication
D. Gene deletion
Question 8
A diagram of a plant's xylem and phloem tissues is shown below. Which of the following is a characteristic of the xylem tissue?
A. It transports water and minerals from the roots to the leaves
B. It transports sugars and other organic compounds from the leaves to the rest of the plant
C. It provides structural support to the plant
D. It regulates the plant's water balance
Question 9
The type of symbiotic relationship in which one organism benefits and the other is harmed is known as
A. Mutualism
B. Commensalism
C. Parasitism
D. Amensalism
Question 10
The hormone responsible for the growth and development of the reproductive organs during puberty is
A. Insulin
B. Growth Hormone
C. Thyroid Hormone
D. Adrenaline
Question 11
A researcher is studying the effects of light intensity on the rate of photosynthesis in a plant. Which of the following variables would be most likely to be measured in this experiment?
A. Rate of respiration
B. Rate of photosynthesis
C. Concentration of CO2 in the air
D. Concentration of O2 in the air
Question 12
A researcher is studying the effects of exercise on the respiratory system. Which of the following variables would be most likely to be measured in this experiment?
A. Rate of respiration
B. Rate of photosynthesis
C. Concentration of CO2 in the air
D. Concentration of O2 in the air
Question 13
A diagram of a cell's structure is shown below. Which of the following organelles is responsible for protein synthesis?
A. The nucleus
B. The mitochondria
C. The ribosomes
D. The \endoplasmic reticulum
Question 14
The process by which plants convert light energy into chemical energy is known as
A. Photosynthesis
B. Respiration
C. Transpiration
D. Translocation
Question 15
A diagram of a human sense organ is shown below. Which of the following is a characteristic of the eye?
A. It detects light and color
B. It detects sound
C. It detects touch
D. It detects smell

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