HESI A2 BIOLOGY - RESPIRATION, REPRODUCTION,

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HESI A2 BIOLOGY - RESPIRATION, REPRODUCTION,

GENETICS, AND DNA EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -56 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: What does the oxidation of NADH molecules produce during respiration?

Answer:

Oxygen

Question 2: Difference between asexual and sexual reproduction?

Answer:

In sexual reproduction, two cells contribute to the genetic material of the daughter cells, resulting in variation. Asexual is one cell contributing and creating an identical cell.

Question 3: What is an allele?

Answer:

different versions of a gene

Question 4: How many ATP are produced from the ETC?

Answer:

28-32 ATP

Question 5: Four phases of the first stage of meiosis?

Answer:

Prophase I, Metaphase I, Anaphase I, Telophase I

Question 6: Two types of asexual reproduction?

Answer:

Binary fission and mitosis

Question 7: What is a phenotype?

Answer:

Traits that will be expressed

Question 8: What process produces the precursor of glucose?

Answer:

Photosynthesis

Question 9: What is homozygous?

Answer:

Both alleles are the same type

Question 10: What is interphase?

Answer:

precedes meiosis, chromosomes are duplicated and cell prepares for division

Question 11: How does the cell produce ATP in photosynthesis?

Answer:

Absorption of light and then using that energy to split water molecules, transfer electron, create NADPH and produce ATP.

Question 12: What is heterozygous?

Answer:

Alleles are different types

Question 13: What replaces Thymine in RNA?

Answer:

Uracil

Question 14: What is cytokinesis?

Answer:

Follows mitosis, the cell pinches in two, forming two identical cells.

Question 15: Name of device used to predict genotype?

Answer:

Punnett Square

Question 16: Where does glycolysis take place?

Answer:

Cytosol

Question 17: What is an anticodon?

Answer:

Located on tRNA, binds to the ribosomes as the codon is sliding through

Question 18: Structure of DNA?

Answer:

Double helical structure with four base pairs

Question 19: Function of anaphase?

Answer:

Chromosomes begin to separate, chromatids are not considered separate chromosomes Question 20: What is the notable difference in the photosynthesis equation compared to cellular respiration equation?

Answer:

Light energy

Question 21: Significant difference between meiosis and mitosis occurs in what stage?

Answer:

prophase I

Question 22: How does mRNA act as a messenger?

Answer:

Relays info from the original DNA helix in the nucleus to the ribosomes in the cytosol or rough ER

Question 23: Function of prophase?

Answer:

chromosomes visibly separate, each duplicated chromosome has 2 sister chromatids.

Question 24: What molecules are produced by Kreb's Cycle?

Answer:

2-ATP, 6-CO2, 6-NADH

Question 25: What is the end result of meiosis?

Answer:

• daughter cells with half as many chromosomes as parent cell.

Question 26: Two categories of Cellular Reproduction?

Answer:

Asexual reproduction, sexual reproduction.

Question 27: What are light reactions?

Answer:

Convert solar energy to chemical energy.

Question 28: What is genetics?

Answer:

Study of heredity