Chapter 3

Question 1

The diffusion of water into a cell by osmosis results in a build-up of

Answer 1

Turgor pressure

Question 2

The transport of dissolved substances into cells to be used by the cells is

Answer 2

Absorption

Question 3

Organisms made up of cells that can operate independently but that normally tend to group together are called

Answer 3

Colonial

Question 4

Which of the following is NOT a characteristic of a prokaryotic cell?

Answer 4

Membrane-bound organelles

Question 5

The cell theory states that cells are the basic units that make up all living things, cells come from preexisting cells, and

Answer 5

Cells are units that carry on the functions of all living things

Question 6

Chloroplasts contain

Answer 6

Grana

Question 7

All of the living material of a cell is called the

Answer 7

Protoplasm

Question 8

The process by which large volumes of fluid enter a cell through pouches in the cell membrane is

Answer 8

Pinocytosis

Question 9

Since diffusion is a purely physical process (it requires no cellular energy), it could be a form of

Answer 9

Passive transport

Question 10

Several tissues grouped together and working as a unit form

Answer 10

An organ

Question 11

The cytoplasm’s long tubular extensions that contain a set of microtubules and that are used in cellular movement are

Answer 11

Flagella

Question 12

The control center of most cell activity is the

Answer 12

Nucleus

Question 13

Which of the following is NOT a characteristic of eukaryotic cell?

Answer 13

A nuclear area not enclosed in a membrane

Question 14

A solution that has a greater concentration of water molecules than the cell it surrounds is

Answer 14

Hypotonic

Question 15

The use of cellular energy to change the permeability of a membrane is called

Answer 15

Active transport

Question 16

Contained in plant cell walls

Answer 16

Cellulose

Question 17

The substance of a cell outside the nucleus

Answer 17

Cytoplasm

Question 18

Folded plasma membrane inside the cell

Answer 18

Endoplasmic reticulum

Question 19

Center (place) of protein synthesis

Answer 19

Ribosome

Question 20

Involved in the processing of substances produced by the cell

Answer 20

Golgi apparatus

Question 21

Contains protein-digesting enzymes

Answer 21

Lysosome

Question 22

Stores starch

Answer 22

Lecuoplast

Question 23

The engulfing process by which cells take in solids by forming vacuoles

Answer 23

Phagocytosis

Question 24

Tiny passageways between plant cells

Answer 24

Plasmodesmata

Question 25

Robert Hooke called the structures he observed “cells”, but what was he actually seeing?

Answer 25

Cell walls

Question 26

How do we describe a solution in which the dissolved substances are in the same concentration as they are in the cell’s cytoplasm?

Answer 26

Isotonic

Question 27

What do we call the bursting of blood cells in hypotonic solutions?

Answer 27

Cytolysis

Question 28

Much of the process of cellular respiration occurs on the cristae of __________

Answer 28

Mitochondria

Question 29

What kind of solution exists when the substances dissolved outside the cell are more abundant than those in the cytoplasm?

Answer 29

Hypertonic

Question 30

The current model for explaining the structure of cell membranes is termed the ___________

Answer 30

Fluid mosaic model

Question 31

T/F

Cytology is the study of cells

Answer 31

True

Question 32

T/F

Some multicellular organisms have tissues that are grouped into organs which are arranged into systems

Answer 32

True

Question 33

T/F

Bacteria do not have membrane-bound nuclei

Answer 33

True

Question 34

T/F

In passive mediated transport, a substance is helped across a membrane against the concentration gradient.

Answer 34

False

Question 35

T/F

Rough endoplasmic reticulum has ribosomes attached to it, whereas smooth endoplasmic reticulum does not

Answer 35

True

Question 36

T/F

The Golgi apparatus often process materials the cell is secreting

Answer 36

True

Question 37

Cork “cells” we’re first identified by

Answer 37

Hooke