Question 1

Which of the following structures is found in the nucleus?

Accepted Answer

A)   cristae
B)   cytosol
C)   cisternae
D)   chromosome
E)   flattened membrane sacsF) B) and C)
G) A) and D)

Question 2

Ribosomes are organelles responsible for

Accepted Answer

A)   protein synthesis.
B)   manufacturing lipids.
C)   cell movement and cell shape.
D)   packaging "cell products" for export.
E)   energy production.F) A) and B)
G) B) and C)

Question 3

A cell that produces many proteins for secretion would have large numbers of

Accepted Answer

A)   rough ER and Golgi apparatus.
B)   lysosomes and Golgi apparatus.
C)   Golgi apparatus and microvilli.
D)   ribosomes and centrioles.
E)   mitochondria and cilia.F) A) and D)
G) None of the above

Question 4

What is the only human cell with a flagellum?

Accepted Answer

A)   columnar cells of upper respiratory tract
B)   spermatozoa
C)   columnar cells of small intestines
D)   red blood cells
E)   macrophage (large, mobile white blood cell) F) A) and B)
G) A) and E)

Question 5

Solution A contains 5 grams of sugar per liter while solution B contains 2 grams of sugar per liter. The solutions are separated by a selectively permeable membrane. If the solvent in both solutions is water, predict in which direction most of the water molecules will move.

Accepted Answer

A)   move by simple diffusion from solution A to solution B
B)   move by osmosis from solution B to solution A
C)   move by active transport from solution B to solution A
D)   move by filtration from solution A to solution B
E)   There will be no movement of water.F) A) and E)
G) C) and E)

Question 6

All triplets required to code for synthesis of a protein are a

Accepted Answer

A)   pre-mRNA.
B)   proenzyme.
C)   gene.
D)   ribosomal RNA (rRN
A)  .
E)   codon.F) All of the above
G) C) and D)

Question 7

The plasma membrane is selectively permeable. This means

Accepted Answer

A)   only gases and water can pass through it.
B)   substances need permission to pass through it.
C)   only certain substances can pass through it.
D)   substances need carrier molecules to pass through it.
E)   ATP is always needed to move molecules across the plasma membrane.F) B) and C)
G) D) and E)

Question 8

Genes that play a role in the regulation of mitosis are called

Accepted Answer

A)   basal cells.
B)   oncogenes.
C)   proto-oncogenes.
D)   mutagens.
E)   apoptogenes.F) B) and E)
G) B) and D)

Question 9

The _____________ contains the genetic information of the cell.

Accepted Answer

A)   nucleolus
B)   ribosome
C)   nucleoplasm
D)   nucleus
E)   nucleosomeF) A) and D)
G) B) and E)

Question 10

The "control center" of the cell is the

Accepted Answer

A)   nucleus.
B)   ribosome.
C)   mitochondrion.
D)   plasma membrane.
E)   endoplasmic reticulum.F) C) and D)
G) None of the above

Question 11

_____________ pressure is the force required to prevent the movement of water by osmosis across a semipermeable membrane.

Accepted Answer

A)   Hydration
B)   Hydrolic
C)   Osmotic
D)   Fluid
E)   FiltrationF) C) and D)
G) C) and E)

Question 12

The main components of the plasma membrane are

Accepted Answer

A)   carbohydrates, ions, and lipids.
B)   lipids and ions.
C)   proteins and carbohydrates.
D)   proteins, lipids, and carbohydrates.
E)   ions, lipids, and proteins.F) C) and D)
G) All of the above

Question 13

Plasma membrane phospholipids

Accepted Answer

A)   have polar (charged)  tails.
B)   are arranged in a single layer.
C)   have tails that face the exterior of the membrane.
D)   are 95% cholesterol.
E)   have a hydrophilic head and hydrophobic tails.F) A) and E)
G) B) and D)

Question 14

Which of the following cell organelles does not contain microtubules?

Accepted Answer

A)   cilia
B)   flagella
C)   spindle fibers
D)   centrioles
E)   All of these choices contain microtubules.F) B) and D)
G) A) and E)

Question 15

Which of the following is NOT consistent with active transport?

Accepted Answer

A)   movement is against a concentration gradient
B)   movement is with a concentration gradient
C)   involves a carrier
D)   exhibits competition and saturation
E)   uses cell energyF) B) and E)
G) B) and D)

Question 16

Chromatin condenses and nucleoli disappear during

Accepted Answer

A)   interphase.
B)   prophase.
C)   metaphase.
D)   anaphase.
E)   telophase.F) C) and D)
G) B) and E)

Question 17

The movement of molecules against their concentration gradient is called

Accepted Answer

A)   active transport.
B)   diffusion.
C)   endocytosis.
D)   facilitated diffusion.
E)   osmosis.F) A) and B)
G) None of the above

Question 18

What type of membrane proteins can catalyze chemical reactions on the inner or outer surfaces of the plasma membrane?

Accepted Answer

A)   marker molecules
B)   channel protein
C)   receptor proteins
D)   enzymes
E)   carrier proteinsF) A) and B)
G) B) and D)

Question 19

Mitosis forms

Accepted Answer

A)   two daughter cells with half the DNA of the mother cell.
B)   two daughter cells with the same amount of DNA as the mother cell.
C)   daughter cells called gametes.
D)   two daughter cells with twice the amount of DNA as the mother cell.
E)   one daughter cell and another incomplete cell.F) A) and E)
G) B) and C)

Question 20

Which of the following terms does NOT relate to the mitochondria?

Accepted Answer

A)   cristae
B)   self-replicating
C)   outer and inner membranes
D)   ATP
E)   vitamin A storageF) A) and E)
G) All of the above

Exam 3: Cell Biology

Which of the following structures is found in the nucleus?

Correct AnswerverifiedShow Answer

Which of the following cell organelles does not contain microtubules?

Correct AnswerverifiedShow Answer

The _____________ contains the genetic information of the cell.

Correct AnswerverifiedShow Answer

The main components of the plasma membrane are

Correct AnswerverifiedShow Answer

Mitosis forms

Correct AnswerverifiedShow Answer

_____________ pressure is the force required to prevent the movement of water by osmosis across a semipermeable membrane.

Correct AnswerverifiedShow Answer

The movement of molecules against their concentration gradient is called

Correct AnswerverifiedShow Answer

The "control center" of the cell is the

Correct AnswerverifiedShow Answer

Ribosomes are organelles responsible for

Correct AnswerverifiedShow Answer

Which of the following terms does NOT relate to the mitochondria?

Correct AnswerverifiedShow Answer

Which of the following is NOT consistent with active transport?

Correct AnswerverifiedShow Answer

What is the only human cell with a flagellum?

Correct AnswerverifiedShow Answer

Solution A contains 5 grams of sugar per liter while solution B contains 2 grams of sugar per liter. The solutions are separated by a selectively permeable membrane. If the solvent in both solutions is water, predict in which direction most of the water molecules will move.

Correct AnswerverifiedShow Answer

All triplets required to code for synthesis of a protein are a

Correct AnswerverifiedShow Answer

A cell that produces many proteins for secretion would have large numbers of

Correct AnswerverifiedShow Answer

Plasma membrane phospholipids

Correct AnswerverifiedShow Answer

Genes that play a role in the regulation of mitosis are called

Correct AnswerverifiedShow Answer

The plasma membrane is selectively permeable. This means

Correct AnswerverifiedShow Answer

Chromatin condenses and nucleoli disappear during

Correct AnswerverifiedShow Answer

What type of membrane proteins can catalyze chemical reactions on the inner or outer surfaces of the plasma membrane?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified