Chapter 6

Question 1

Two major classes of cells?

Answer 1

Prokaryotes & eukaryotes

Question 2

________ is the most ancient of cells

Answer 2

Prokaryotic

Question 3

A single cell can do everything ______ cells can

Answer 3

Many

Question 4

Two types of eukaryotic cells?

Answer 4

Plant cells and animal cells

Question 5

Do plant or animal cells have a plasma membrane?

Answer 5

Both have

Question 6

Does a plant or animal cells have a nucleus?

Answer 6

Both

Question 7

What does the nucleus in a plant or animal cell do?

Answer 7

Directs cellular activity located between plasma membrane and nucleus in cytoplasm

Question 8

_______ is only in plants

Answer 8

Chloroplast

Question 9

What do membranes in a cell do?

Answer 9

Keep stuff organized and allow stuff to pass through

Question 10

Made up of a phosphate group and a lipid group

Answer 10

Plasma membrane

Question 11

The plasma membrane molecule is called a

Answer 11

Phosphilid

Question 12

Head=_________

Lipid end=______

Answer 12

Hydrophilic; hydrophobic

Question 13

Two rows of phosphilids

Answer 13

Phosphilidic bilayer

Question 14

The plasma membrane is embedded with ___________

Answer 14

Proteins

Question 15

Plasma membrane is a phosphilid bilayer and can be used for?

Answer 15

1. Enzyme activity
2. Cell to cell recognition
3. Cell signaling
4. Transport of materials

Question 16

The phospholipid bilayer is formed when?

Answer 16

To tails connect and the heads face outward

Question 17

Doesn’t require energy

Answer 17

Passive Transport

Question 18

Molecules are in ___________ in passive transport

Answer 18

Constant motion

Question 19

Movement of molecules become all over

Answer 19

Diffusion

Question 20

Diffusion spreads molecules from _________________

Answer 20

High concentration to low concentration

Question 21

_____________ is reached when the amount of molecules become equal

Answer 21

Equilibrium

Question 22

Passive transport of water through a selectively permeable membrane

Answer 22

Osmosis

Question 23

Solution is one in which the amount of solute inside of the cell is more then the outside

Answer 23

Hypotonic solution

Question 24

Solute:solvent are equal

Answer 24

Isotonic solution

Question 25

Cell theory?

Answer 25

1. All living things are made up of a or more cells
2. Cell= basic unit of life
3. Cells come from pre-existing cells

Question 26

Diffusion with help; helpers are proteins

Answer 26

Facilitated diffusion

Question 27

Substance come through the plasma while some are blocked out

Answer 27

Selectively permeable

Question 28

The cell will shrink in a ______________ because it loses water trying to make the amount of solute equal

Answer 28

Hypertonic solution

Question 29

Requires energy to collect/reject substances

Answer 29

Active transport

Question 30

Use cellular energy to move molecules, located in the plasma membrane

Answer 30

Pacific transport proteins

Question 31

When a cell uses vesicles to transport stuff into the cell

Answer 31

Endocytosis

Question 32

Cell uses a vesicle to transport unneeded materials from inside the cell to the outside of the cell

Answer 32

Exocytosis