Biology of Humans: Concepts, Applications, and Issues

Judith Goodenough, Betty McGuire

Chapter 3

The Cell - all with Video Answers

Educators

Chapter Questions

Problem 1

Choose the incorrect statement:
a. Phagocytosis and pinocytosis are two types of endocytosis.
b. Phagocytosis requires a carrier protein.
c. Nerve cells release chemicals by exocytosis.
d. Cells engulf bacteria by phagocytosis.

Kayla Scholl

Kayla Scholl

Numerade Educator

Problem 2

Lysosomes
a. function in extracellular digestion.
b. produce phospholipids to incorporate into membranes.
c. have a double membrane.
d. function in intracellular digestion.

Kayla Scholl

Numerade Educator

Problem 3

Choose the incorrect statement:
a. Cellular respiration requires oxygen.
b. Glycolysis occurs in both cellular respiration and fermentation.
c. Cellular respiration yields more ATP per molecule of glucose than does fermentation.
d. Fermentation occurs in mitochondria.

Kayla Scholl

Numerade Educator

Problem 4

Prokaryotic cells
a. rarely have a cell wall.
b. are usually larger than eukaryotic cells.
c. lack internal membrane-enclosed organelles.
d. have linear strands of DNA within a nucleus.

Kayla Scholl

Numerade Educator

Problem 5

The plasma membrane
a. is selectively permeable.
b. contains lipids that function in cell-cell recognition.
c. has cell adhesion molecules that prevent cells from sticking together.
d. is made of nucleic acids.

Kayla Scholl

Numerade Educator

Problem 6

Facilitated diffusion is
a. the random movement of a substance from a region of higher concentration to a region of lower concentration.
b. the movement of water across the plasma membrane.
c. the movement of molecules across the plasma membrane against a concentration gradient with the aid of a carrier protein and energy supplied by the cell.
d. the movement of a substance from a region of higher concentration to a region of lower concentration with the aid of a membrane protein.

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Numerade Educator

Problem 7

Almost all the genetic information of a cell is found in the
a. endoplasmic reticulum.
b. Golgi complex.
c. nucleus.
d. mitochondria.

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Numerade Educator

Problem 8

Ribosomes
a. are found on smooth endoplasmic reticulum.
b. are sites where protein synthesis begins.
c. process and modify proteins.
d. break down foreign invaders and old organelles.

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Numerade Educator

Problem 9

Mitochondria
a. process energy for cells.
b. lack ribosomes and DNA.
c. are bounded by a single membrane.
d. function in cell digestion.

Kayla Scholl

Numerade Educator

Problem 10

Mitochondria
a. process energy for cells.
b. lack ribosomes and DNA.
c. are bounded by a single membrane.
d. function in cell digestion.

Kayla Scholl

Numerade Educator

Problem 11

Glycolysis
a. occurs in the mitochondria.
b. requires oxygen.
c. splits glucose into pyruvate.
d. nets 32 molecules of ATP per molecule of glucose.

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Numerade Educator

Problem 12

______ is the jellylike solution within a cell that contains everything between the nucleus and the plasma membrane.

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Numerade Educator

Problem 13

________ is the jellylike solution within a cell that contains everything between the nucleus and the plasma membrane.

Kayla Scholl

Numerade Educator

Problem 14

Our muscle cells may switch from cellular respiration to __________ when oxygen is low.

Kayla Scholl

Numerade Educator