FREE SCIENCE AND STUDY GAMES ABOUT ANATOMY

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FREE SCIENCE AND STUDY GAMES ABOUT ANATOMY

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -60 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: A specialized cell structure that propels the sperm is the:

Answer:

flagellum Question 2: In the cell membrane, the hydrophilic part of the phospholipid molecule:

Answer:

faces the exterior of the cell/ faces the interior of the cell Question 3: Projections from the cell that move materials and mucus are called:

Answer:

cilia

Question 4: The plasma membrane is composed of all of the following except

Answer:

tubulin protein

Question 5: Phospholipids of the plasma membrane are arranged

Answer:

as a bilayer with their nonpolar tails sandwiched between the polar heads.Question 6: The structure that separates the contents of a cell from the surrounding tissue is

known as:

Answer:

plasma membrane Question 7: In the matrix of the plasma membrane, a variety of proteins are embedded. Some of these proteins serve as passageway for Na+ ions or glucose. These proteins are called

Answer:

transport proteins Question 8: The identification function of the cell membrane is carried out by the:

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glycoprotein molecules.Question 9: Which of the following is not true of the rough endoplasmic reticulum?

Answer:

It makes lipids and carbohydrates.Question 10: Damage to the centrosome and centrioles in a cell would have the greatest impact on which cell function?

Answer:

Cell division Question 11: The presence of which substance in the cell membrane keeps it from breaking too easily?

Answer:

Cholesterol Question 12: Often referred to as the "power plant" of the cell, which organelle is the site of ATP production?

Answer:

mitochondrion

Question 13: Which of the following does not describe a structure or function of the proteasome?

Answer:

Breaking down abnormal and misfolded proteins released from the ER , Looks like a hollow cylindrical drum made of protein subunits , Requires the small protein called ubiquitin to pull proteins in Question 14: Which of the following is a type of cell extension that lines the intestines and other areas of the body?

Answer:

microvilli

Question 15: Ribosomes are organelles that

Answer:

Ribosomes are organelles that

Question 16: This organelle has both a cis and a trans face

Answer:

Golgi apparatus Question 17: Which of the following cytoskeleton elements are the largest in diameter?

Answer:

microtubules Question 18: The largest human cell, measuring about 150 ?m, is a:

Answer:

female sex cell or ovum.Question 19: The structure in cells that is associated with the enzymatic breakdown (digestion)

of foreign material is the:

Answer:

lysosome.

Question 20: Which of the following is not true about ribosomes?

Answer:

Surrounded by a membrane structure

Question 21: Which cell fiber serves as part of our "cellular muscles?"

Answer:

Microfilament Question 22: This organelle is primarily a sac of powerful digestive enzymes called acid hydrolases.

Answer:

lysosome Question 23: The membranous structure containing substances that protect the cell from harm

are:

Answer:

ribosomes/peroxisomes Question 24: Ribosomes may be either free within the cytoplasm or bound to a membrane system known as the

Answer:

rough endoplasmic reticulum Question 25: The enzyme catalase is an important chemical in the functioning of the:

Answer:

peroxisomes

Question 26: This organelle is numerous in liver and kidney cells

Answer:

peroxisome Question 27: Which of the following organelles is considered a nonmembranous organelle?

Answer:

Ribosome Question 28: This organelle is characterized by folded membranes called cristae.

Answer:

mitochondria