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26 notecards = 7 pages (4 cards per page)

Viewing:

Cells: The Living Units

front 1

The intracellular fluid packed with the organelles of a cell is called _______.

a. plasma
b. nucleus
c. phospholipid
d. cytoplasm

back 1

d. cytoplasm

front 2

The cell membrane is composed mostly of ________.

a. proteins and steroids
b. phospholipids and steroids
c. phospholipids and proteins
d. carbohydrates and steroids

back 2

c. phospholipids and proteins

front 3

The smallest unit of life is the ________.

a. cell
b. organelle
c. nucleus
d. DNA

back 3

a. cell

front 4

The interior of the cell membrane can best be described as ________.

a. hydrophilic
b. hydrophobic
c. hydrated
d. polar

back 4

b. hydrophobic

front 5

Cell junctions that are important in cell communication are _______.

a. tight junctions
b. gap junctions
c. desmosomes
d. plaques

back 5

b. gap junctions

front 6

Which of the following is not an example of passive transport?

a. Diffusion
b. Facilitated diffusion
c. Pinocytosis
d. Osmosis

back 6

c. Pinocytosis

front 7

If you walk into your house and smell dinner, you are experiencing ________.

a. diffusion
b. osmosis
c. facilitated diffusion
d. active transport

back 7

a. diffusion

front 8

Diffusion requires _______.

a. a membrane
b. protein carriers
c. energy
d. none of the above

back 8

d. none of the above

front 9

A cell that is placed in a hypertonic solution will ______.

a. burst
b. crenate
c. remain the same
d. hydrate

back 9

b. crenate

front 10

In comparison to cells, _________ solutions contain a lower concentration of nonpenetrating particles.

a. osmotic
b. hypertonic
c. isotonic
d. hypotonic

back 10

d. hypotonic

front 11

Which of the following is not an example of vesicular transport?

a. Active transport
b. Phagocytosis
c. Exocytosis
d. Pinocytosis

back 11

a. Active transport

front 12

A cell will "drink" small amounts of fluid and solutes using _______.

a. pinocytosis
b. phagocytosis
c. facilitated diffusion
d. exocytosis

back 12

a. pinocytosis

front 13

Specifically, which type of transport is driven by energy stored in gradients?

a. Symport transport
b. Primary active transport
c. Secondary active transport
d. Antiport transport

back 13

c. Secondary active transport

front 14

How is active transport different from facilitated diffusion?

a. It is specific.
b. It is reversible.
c. It exhibits saturation.
d. It moves against the concentration
gradient.

back 14

d. It moves against the concentration
gradient.

front 15

Which molecules would most likely be actively transported?

a. Water molecules
b. Amino acids
c. Molecules moving to a lower concentration
d. Hydrophobic molecules

back 15

b. Amino acids

front 16

In a cell, proteins are synthesized at the ________.

a. Golgi apparatus
b. mitochondrion
c. smooth endoplasmic reticulum
d. ribosome

back 16

d. ribosome

front 17

In a cell, ATP is produced by the _________.

a. Golgi apparatus
b. mitochondrion
c. rough endoplasmic reticulum
d. ribosome

back 17

b. mitochondrion

front 18

These structures bud off the Golgi apparatus.

a. Ribosomes
b. Lysosomes
c. Peroxisomes
d. Phagosomes

back 18

b. Lysosomes

front 19

Which cytoskeletal element attaches to desmosomes to resist pulling forces exerted on the cell?

a. Microtubules
b. Macrotubules
c. Intermediate filaments
d. Microfilaments

back 19

c. Intermediate filaments

front 20

These organelles are fatal to the cell if they burst.

a. Ribosomes
b. Centrioles
c. Mitochondria
d. Lysosomes

back 20

d. Lysosomes

front 21

Mitosis is the division of the _______.

a. cell
b. cytoplasm
c. nucleus
d. all of the above

back 21

c. nucleus

front 22

Cytokinesis is defined as _________.

a. the division of the cell
b. the formation of a cleavage furrow
c. the division of the cytoplasm
d. the telophase stage of mitosis

back 22

c. the division of the cytoplasm

front 23

DNA is replicated during which stage of interphase?

a. Gap zero
b. Gap one
c. Gap two
d. S phase

back 23

d. S phase

front 24

If a cell has 8 chromosomes before mitosis, each daughter cell will have how many chromosomes?

a. 2
b. 4
c. 8
d. 16

back 24

c. 8

front 25

Semiconservative replication refers to: ________.

a. one old and one new nucleotide strand in each
new DNA molecule
b. the equal splitting of the cytoplasm during
cytokinesis
c. the production of two genetically identical
daughter cells at the end of mitosis
d. the conservation of energy during mitosis and
cytokinesis

back 25

a. one old and one new nucleotide strand in each
new DNA molecule

front 26

What is the function of primary cilia?

a. Propel the cell
b. Move substances in one direction across cell
surfaces
c. Probe the external environment for molecules
their receptors can recognize
d. Increase the surface area

back 26

c. Probe the external environment for molecules
their receptors can recognize