Science Chapter 2 Cells 7Th Grade

Front 1

What is a cell?

Back 1

THe smallest unit that is capable of performing life functions

Front 2

What is the outer covering of a cell?

Back 2

cell membrane

Front 3

What is inside every cell a gelatinlike material

Back 3

cytoplasm

Front 4

the cytoplasm of every cell contains what?

Back 4

hereditary material that controls the life of the cell

Front 5

what are cell without membrane-bound structures

Back 5

prokaryotic cell

Front 6

give an example of a prokaryotic cell (one cell organisma)

Back 6

bacteria

Front 7

cells with membrane bound structures are called what

Back 7

eukaryotic cells

Front 8

give an example of a eukaryotic cell

Back 8

plant and animal cells

Front 9

what usually aides in cell movement

Back 9

fiagella

Front 10

Give an example of a cell with a fiagella

Back 10

Male sperm cell

Front 11

tempory storage of food, enzymes, and waste

Back 11

vacuole

Front 12

What synthesizes proteins

Back 12

rhibosomes

Front 13

what modifies, shorts and sends proteing to their appropriate locations

Back 13

golgi appartus

Front 14

what moves things outside the cell

Back 14

cilia

Front 15

What is an example of a cell with cilia

Back 15

inside your nose and in trachea

Front 16

the selectively permeable boundry between cell an its environment

Back 16

plasma membrane

Front 17

what makes ribosomes

Back 17

nucleous

Front 18

what directs all cell activities

Back 18

nucleus

Front 19

associtated with ribosomes which make proteins

Back 19

rough er

Front 20

what stores and synthesis proteins

Back 20

smooth er

Front 21

What three components are found in plant cells but not animal cells

Back 21

central vacuole, cell wall and chloroplasts

Front 22

What is the function of the mitochrondria

Back 22

It provides food and energy

Front 23

Which organelle allows plants to make their own food

Back 23

chloroplasts

Front 24

What process takes place in the chloroplasts that changes light energy to chemical energy

Back 24

photosynthesis

Front 25

the process of maintaining the cells internal environment

Back 25

homeostasis

Front 26

The cell theory

Back 26

All organisms are composed of one or more cells
the cell is the basic unit of the organisms
all cells came from one cell (divide to form two identical cells)

Front 27

waste ,moves out food moves into membrane what is this called

Back 27

selective permeability

Front 28

tough rigid outer covering that protects the plant cell

Back 28

cell wall

Front 29

gelatin like substance that carries genetic material

Back 29

cytoplasm

Front 30

organelles

Back 30

structures that move materials, process energy, storage site or manufacture substances

Front 31

List the organelles plant cell

Back 31

nucleus nucleous er mitrochondria ribosomes clloroplasrts central vacuole golgi apparatus

Front 32

list the organelles in a animal cell

Back 32

nucleus nucleous cytoskeletan mitronchridia er ribosomes golgi apparatus

Front 33

strand of hereditary material surrounded by a protein coating

Back 33

virus

Front 34

it is a structure made up of different types of tissues that work togeather

Back 34

organ

Front 35

it is a group of similar cells that work together to do one job

Back 35

tissue

Front 36

This cell has to perform all functions of life

Back 36

unicellular organisms

Front 37

Each cell has a specific function that contributes to the organism

Back 37

Multi-cellular organism

Front 38

This organelles contains digestive enzymes that help break down food

Back 38

lysosomes

Front 39

the lysomes membrane prevents what?

Back 39

The digestive enzymes inside from leaking out
if they did they would destroy the cell

Front 40

What is the cell theory

Back 40

all organisms are made up of one or more cells
the cell in the basic unit of organization in organisms
all cells come from cells

Front 41

a strand of heriditary material surrounded by a protein coating

Back 41

virus

Front 42

viruses do not have what

Back 42

no nucleus or other organelles
also no cell membrane

Front 43

how do viruses multiply

Back 43

they need a living host cell

Front 44

Can a virus move by itself

Back 44

no it can be inhaled by an animal
it can reach a plant with use of wind

Front 45

This is made from weakend virus particles that can't cause the disease anymore

Back 45

vaccine

Front 46

a virus can be active or inactive

Back 46

when active it causes the host cell to make new viruses then kills the host cell
inactive its heriditary material becomes part of the host cell

Front 47

How do you treat a viral infection

Back 47

the virus infected cell produce interferon a protein that moves to the nonifected cells and produces a protective substance

Front 48

the slow random movement of particles from and area of high concentration to an area of low concentration

Back 48

diffusion

Front 49

as cells size increases what happens to its volumn

Back 49

it increases

Front 50

When a cell becomes to large what happens to it

Back 50

it divides

Front 51

contains magnifying lenses you look through

Back 51

eyepiece