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HESI RN · HESI Biology · Biology Test

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Which of the following describes the set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products?

A. Cellular respiration

B. Meiosis

C. Photosynthesis

D. Mitosis

Expert Explanatory Rationale

Correct Answer: Cellular respiration

Question 2 of 5

During which stage of photosynthesis is solar energy converted to chemical energy?

A. During phosphate synthesis

B. During light reactions

C. During the Krebs cycle

D. During the Calvin cycle

Expert Explanatory Rationale

Correct Answer: During light reactions

Question 3 of 5

What must first occur before a cell can be divided to grow, develop, and reproduce organisms?

A. RNA replication

B. DNA replication

C. Gene replication

D. Chromosome replication

Expert Explanatory Rationale

Correct Answer: DNA replication

Question 4 of 5

Which of the following options is the term used to represent alternative versions of a gene?

A. Alleles

B. Binary fission

C. Heterozygous

D. Homozygous

Expert Explanatory Rationale

Correct Answer: Alleles

Question 5 of 5

During photosynthesis in green plants, light energy is captured and used to convert all except which of the following into oxygen and energy-rich organic compounds?

A. Minerals

B. Water

C. Carbon dioxide

D. Metals

Expert Explanatory Rationale

Correct Answer: Metals

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