HESI A2-BIOLOGYNEW EXAM QUESTIONS

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HESI A2-BIOLOGY(NEW) EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -100 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 drawing a conclusion developing a theory the scientific method conducting an experiment

Answer:

conducting an experiment

Question 2: How are phospholipids important in the function of cells?

They are important components of the cytoplasmic skeleton.They are important components of the plasma membrane.They are important components of the cytoplasm.They are important components of the cell wall.

Answer:

They are important components of the plasma membrane.Question 3: Which of the following correctly lists the hierarchic system of classification from most inclusive to least inclusive?Kingdom, Phylum, Class, Family, Order, Genus, Species Kingdom, Phylum, Class, Order, Family, Genus, Species Kingdom, Phylum, Order, Class, Family, Genus, Species Kingdom, Phylum, Order, Family, Class, Genus, Species

Answer:

Kingdom, Phylum, Class, Order, Family, Genus, Species Question 4: Which of the following is the typical magnification power of the ocular lens on a microscope?5x 50x 20x 10x

Answer:

10x

Question 5: Where can ribosomes be found inside a cell?

Attached to the rough endoplasmic reticulum and in the cytoplasm Attached to the nuclear membrane and the rough endoplasmic reticulum Inside the nucleus and in the cytoplasm Attached to the smooth endoplasmic reticulum and in the cytoplasm

Answer:

Attached to the rough endoplasmic reticulum and in the cytoplasm Question 6: Which of the following levels of organization in the human body is the most inclusive?Organ System Tissue Organ Organism

Answer:

Organism

Question 7: Which of the following statements about water is incorrect?

The polarity of water allows for covalent bonding between molecules.Water's cohesive and adhesive properties allow water molecules to bond to other molecules and stick to substances.The polarity of water allows it to act as a versatile solvent.Water's high specific heat allows it to resist temperature shifts.

Answer:

The polarity of water allows for covalent bonding between molecules.

Question 8: Which of the following equations represents the simplified chemistry behind cellular respiration?

C6 H12O6 + 6O2 ? 6CO2 + 6H2 O + ATP

C6H12O6 + 6CO2 + Light energy ? 6O2 + 6H2O

6CO2 + 6O2 + ATP ? C6H12O6 + 6H2O

6CO2 + 6H2O + Light energy ? C6H12O6 + 6O2

Answer:

C6 H12O6 + 6O2 ? 6CO2 + 6H2 O + ATP

Question 9: What are the three types of lipids?

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

Answer:

Fatty acids, phospholipids, and steroids

Question 10: Which of the following microtubules can be used to move the cell?

Centrosomes Centrioles Filaments Flagella

Answer:

Flagella Question 11: Which of the following is not a benefit of the intermolecular hydrogen bonding of water?Strong cohesive properties Strong adhesive properties Versatile solvent properties A relatively low specific heat

Answer:

A relatively low specific heat Question 12: If a substance is moving across a plasma membrane against the concentration gradient, what type of transport is required?Osmosis Passive transport Diffusion Active transport

Answer:

Active transport Question 13: Which of the following is a lipid that is a component of cellular membranes and a precursor to significant hormones and drugs?Steroids Saturated fats Phospholipids Unsaturated fats

Answer:

Steroids

Question 14: How are carbohydrates absorbed into the bloodstream?

Carbohydrates are turned into disaccharides and absorbed into the blood via the walls of the stomach.Carbohydrates are turned into glucose and absorbed into the blood via the walls of the small intestine.Carbohydrates are turned into oxygen and are absorbed into the blood via the lungs.Carbohydrates are turned into fatty acids and absorbed into the blood via the walls of the large intestine.

Answer:

Carbohydrates are turned into glucose and absorbed into the blood via the walls of the small intestine.

Question 15: Which of the following about carbohydrates is incorrect?

They are polymers of sugars Their most important functions are providing storage, structure, and energy.They form the backbone of important molecules such as DNA and RNA

They contain only three elements: carbon, hydrogen, and oxygen

Answer:

They contain only three elements: carbon, hydrogen, and oxygen

Question 16: Which of the following organelles is responsible for water balance and storage of inorganic ions in plants?Vacuole Golgi apparatus Lysosome Chloroplast

Answer:

Vacuole