HESI A2 V2 BIOLOGY TEST 2 EXAM QUESTIONS

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HESI A2 V2 BIOLOGY TEST 2 EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -25 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: A repeatable procedure of gathering data to support or refute a hypothesis is known as conducting an experiment the scientific method drawing a conclusion developing a theory

Answer:

conducting an experiment Question 2: A flagellum is a whip-like appendage found on the surface of some cells. What is their primary purpose?Membrane production Transport proteins throughout the cell Detoxification of medications and poisons Movement of the cell

Answer:

Movement of the cell

Question 3: Which type of cell lacks a defined nucleus?

Animal cell Eukaryotic cell Plant cell Prokaryotic cell

Answer:

Prokaryotic cell Question 4: Which of the following correctly lists the hierarchic system of classification from most inclusive to least inclusive?Kingdom, Phylum, Order, Class, Family, Genus, Species Kingdom, Phylum, Class, Family, Order, Genus, Species Kingdom, Phylum, Class, Order, Family, Genus, Species Kingdom, Phylum, Order, Family, Class, Genus, Species

Answer:

Kingdom, Phylum, Class, Order, Family, Genus, Species Question 5: 36 chromosomes undergo meiosis. How many chromosomes will be in each gamete?72 36 18 144

Answer:

18 Question 6: Which organelle is responsible for storing, modifying and sending out products of the endoplasmic reticulum, such as proteins?Endoplasmic reticulum Ribosomes Golgi apparatus Lysosomes

Answer:

Golgi apparatus

Question 7: Which of the following is not true about water?

When water freezes, it forms a lattice crystal, causing ice to float.Large bodies of water stabilize climates due to water's high specific heat.The polarity of water's bonds allows for covalent bonding between molecules.Hydrogen bonding results in water having strong cohesive and adhesive properties.

Answer:

The polarity of water's bonds allows for covalent bonding between molecules.Question 8: Which biologic molecule would you recommend a patient limit if they want to avoid having cardiovascular problems?Unsaturated fats Carbohydrates Phospholipids Saturated fats

Answer:

Saturated fats Question 9: What function do cholesterol molecules serve within the cell membrane?They allow for carbohydrate chains to extend beyond the cell membrane to communicate with other cells.They allow the cell membrane to be selectively permeable by making the bilayer structure more flexible.They act as transport highways for molecular movement into and out of the cell.They stabilize the flexible bilayer structure to prevent breakage.

Answer:

They stabilize the flexible bilayer structure to prevent breakage.Question 10: Which step in cellular respiration takes place in the mitochondria of the cell and produces two ATP molecules, six carbon dioxide molecules, and six NADH molecules for every molecule of glucose?The Calvin cycle Electron transport chain The Krebs cycle Glycolysis

Answer:

The Krebs cycle

Question 11: What are the three types of lipids?

Fatty acids, enzymes, and steroids Fatty acids, phospholipids, and enzymes Fatty acids, saturated fats, and unsaturated fats Fatty acids, phospholipids, and steroids

Answer:

Fatty acids, phospholipids, and steroids

Question 12: Which are the correct mRNA bases, complementary to the following DNA strand "

TGCA":

ACGU TUGT TGCA ACGT

Answer:

ACGU

Question 13: DNA and RNA are subunits of which type of biologic molecule?

Proteins Lipids Nucleic acids Carbohydrates

Answer:

Nucleic acids

Question 14: Solar energy is converted to chemical energy during which stage of

photosynthesis?Light reactions Sugar polymerization The Calvin cycle The Krebs cycle

Answer:

Light reactions Question 15: Which cell organelle functions in the detoxification and metabolism of multiple molecules?Lysosomes Smooth endoplasmic reticulum Golgi apparatus Rough endoplasmic reticulum

Answer:

Smooth endoplasmic reticulum Question 16: Which type of protein acts to catalyze different reactions or processes?Amino acids Enzymes Steroids Hormones