7.1-7.3

Question 1

Which type of transport requires the use of a transport protein?

Answer 1

Facilitated Diffusion/transport

Question 2

Which of the following refers to the diffusion of water?

Answer 2

Osmosis

Question 3

In Passive Transport, molecules move up the concentration gradient from Low Concentration to High concentration.
(T/F)

Answer 3

False

Question 4

Cell membranes are mainly made of proteins and ________________________.

Answer 4

Phospholipids

Question 5

Oxygen (O2) and Carbon dioxide (CO2) can pass through the cell membrane through a process called _____________________________________.

Answer 5

diffusion

Question 6

What is the function of the cell membrane?

Answer 6

control what comes in and out of the cell

Question 7

A scientist wanted to observe which solution would increase the volume of cells in a potato. She cut three slices of potato. She weighed the potato slices first then placed them in different solutions. The first solution was water. The second was lemonade. the third was coffee. After 15 minutes, she weighed the slices again and recorded her data.

What is the Independent Variable in the experiment?

Answer 7

The solutions

Question 8

Which type of transport requires the use of energy?

Answer 8

active transport

Question 9

Which of the following refers to the diffusion of water?

Answer 9

osmosis

Question 10

Which of the following describes a situation in which a cell does not have enough water?

Answer 10

hypertonic

Question 11

Facilitated diffusion uses ____________ to pass molecules through a cell membrane.

Answer 11

Proteins

Question 12

An animal cell that is in an extremely hypotonic solution will most likely

Answer 12

burst

Question 13

The three main factors that affect diffusion are

Answer 13

concentration,
temperature
pressure
.

Question 14

What results in an increase in the rate of diffusion?

Answer 14

an increase in pressure
an increase in concentration
an increase in temperature

Question 15

In which of the following situations does water pass equally to both inside and outside the cell?

Answer 15

isotonic

Question 16

Homeostasis

Answer 16

homeostasis is the state of steady internal physical and chemical conditions

Question 17

What are some examples of Homeostasis

Answer 17

Body heat temp

The volume of body water

Question 18

Describe how cell diversity began

Answer 18

Eukaryotic cells evolved from prokarytic cells. Since eukaryotic cells are more complex they develop specific functions; from those functions came cell diversity.

Question 19

Describe a phospholipid bi layer

Answer 19

is a thin polar membrane made of two layers of lipid molecules

Question 20

What is the difference between eukaryotic and prokaryotic cells

Answer 20

prokaryotic cells do not have a nucleus or membrane-bound organelles

Question 21

What is a cytoplasm

Answer 21

Fluidity material

Question 22

Cytoskeleton

Answer 22

Support. organelles

Question 23

Micro tubules

Answer 23

protein cylinders that form a skeleton

Question 24

What dose the nucleus do

Answer 24

stores DNA that makes proteins that determine cell growth

Question 25

Ribosomes

Answer 25

organelles that manufacture proteins, not membrane-bound

Question 26

Golgi apparatus

Answer 26

flattened stack of membranes that modifies, sorts, and packages proteins

Question 27

vacuole

Answer 27

sac used for temporary storage

Question 28

Centrioles

Answer 28

are organelles made of groups of microtubules

Question 29

Diffusion

Answer 29

s the net movement of particles from an area of high concentration to an area of lower concentration

Question 30

diffusion occurs over a long enough time it becomes the same making it

Answer 30

dynamic equilibrium

Question 31

Facilitated diffusion

Answer 31

uses transport proteins to move ions and small molecules across the plasma membrane

Question 32

Osmosis

Answer 32

is the diffusion of water across a selectively permeable membrane

Question 33

isotonic solution

Answer 33

same concentration of water and solutes

steady water moving in and out

Question 34

hypotonic solution

Answer 34

lower concentration of solutes

As water moves into the cell, pressure increases

Question 35

hypertonic solution

Answer 35

higher concentration of solutes

As water moves out of the cell, pressure decreases

Question 36

Movement of particles across the cell membrane, against the concentration gradient, requires energy and is called

Answer 36

active transport

Question 37

coupled transport is a process that

Answer 37

Allow sugars to enter through facilitated diffusion – saving energy

Question 38

is the excretion of materials at the plasma membrane

Answer 38

Endocytosisis

Question 39

who first used the term “cell”

Answer 39

Robert Hooke

Question 40

anton van leeuwenhoek

Answer 40

first to observe bacteria

Question 41

Things that all cells have

Answer 41

DNA, plasma membrane, Mitochandria

Question 42

Phospholipid bilayer is made of the

Answer 42

fluid region and poler heads