HESI A2 BIOLOGY EXAM QUESTIONS

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HESI A2 BIOLOGY (3) EXAM QUESTIONS

Qs and Ans Expert- Explanation

This Exam contains:

-Guarantee passing score -25 Questions and Answers -format set of multiple-choice -Expert- Explanation

Question 1: Which is true of enzymes?

• They are made from lipids
• They are made from proteins
• They form double chains of DNA
• They bind with catalysts

Answer:

• They are made from proteins

Question 2: _____ is a symbiotic relationship in which one organism benefits and the other is not affected.

• mutualism
• parasitism
• commensalism
• competition

Answer:

• commensalism

Question 3: Which might be describes as a core of nucleic acid surrounded by a protein coat?

• RNA
• virus
• blue-green alga
• saprophyte

Answer:

• virus

Question 4: Foods with a high salt content do not have to be refrige . What natural process prevents these foods from spoiling?

• osmosis
• diffusion
• active transport
• passive transport

Answer:

• osmosis

Question 5: Patient A, who weighs 68 kilograms, steps onto a scale 20 times. The scale consistently weighs Patient A as 75 kilograms. What is true of the measurement?

• it is valid, but no reliable
• it is reliable, but not valid
• it is both valid and reliable
• it is neither reliable nor valid

Answer:

• it is reliable, but not valid

Question 6: What is necessary for active transport through a membrane to take place?

• Glucose
• Oxygen
• Sodium

D. ATP

Answer:

D. ATP

Question 7: Which is found in animal cells but not in a plant cells?

• centriole
• cytoplasm
• vacuole
• golgi apparatus

Answer:

• centriole

Question 8: How do green plants use nitrates in the nitrogen cycle?

• to synthesize proteins
• to store food
• to decompose ammonia
• to break down nitrites

Answer:

• to synthesize proteins

Question 9: Dogs are part of a larger animal group, the Carnivora. What classification is this?

• kingdom
• class

• order
• genus

Answer:

• order

Question 10: Which organelle provides storage space for the cell?

• mitochondrion
• vacuole
• cell membrane
• ribosome

Answer:

• vacuole

Question 11: Which names a final step in protein synthesis?

• DNA unzips
• amino acids bond
• transfer RNA bonds to messenger RNA
• messenger RNA moves to ribosomes

Answer:

• amino acids bond

Question 12: Which one would have the least energy efficiency in nutrient consumption?

• cow
• caterpillar
• coyote
• cricket

Answer:

• coyote