NEX Science Version 1
Practice exam for Nursing Entrance Exam (NEX) under Pre-Nursing (Nursing Exams). 5 sample questions.
Sample Questions
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Question 1
The inherited factors that are transmitted in an organism from generation to generation are called its.
Correct Answer: B
Rationale: The genotype refers to the genetic makeup of an organism, which is inherited from generation to generation. Heterozygote and homozygote describe specific genetic conditions, while phenotype is the observable expression of the genotype.
Rationale: The genotype refers to the genetic makeup of an organism, which is inherited from generation to generation. Heterozygote and homozygote describe specific genetic conditions, while phenotype is the observable expression of the genotype.
Question 2
Which of the following substances comprises the majority of the human cell membrane?
Correct Answer: A
Rationale: The human cell membrane is primarily composed of a phospholipid bilayer, which forms the basic structure and barrier of the membrane.
Rationale: The human cell membrane is primarily composed of a phospholipid bilayer, which forms the basic structure and barrier of the membrane.
Question 3
In order to increase the amount of oxygen produced by a plant, available
Correct Answer: B
Rationale: Photosynthesis in plants produces oxygen and requires carbon dioxide as a reactant. Increasing available carbon dioxide enhances the rate of photosynthesis, leading to more oxygen production.
Rationale: Photosynthesis in plants produces oxygen and requires carbon dioxide as a reactant. Increasing available carbon dioxide enhances the rate of photosynthesis, leading to more oxygen production.
Question 4
Which objective lens should you use when initially viewing a specimen with a microscope?
Correct Answer: D
Rationale: The low power objective lens provides a wider field of view and lower magnification, making it ideal for initially locating and observing a specimen before switching to higher magnification.
Rationale: The low power objective lens provides a wider field of view and lower magnification, making it ideal for initially locating and observing a specimen before switching to higher magnification.
Question 5
Which of the following organisms is composed of cells with walls?
Correct Answer: B
Rationale: Plant cells, such as those in an oak tree, have cell walls made of cellulose. Human, cat, and protozoan cells lack cell walls.
Rationale: Plant cells, such as those in an oak tree, have cell walls made of cellulose. Human, cat, and protozoan cells lack cell walls.