Unit Test

Question 1

What is a micro organism

Answer 1

Only be seen with a microscope. Smaller than one mm. Live inside and on other living things. Live in the air land or water.

Question 2

Cell theory

Answer 2

.Cell is the basic unit of life
.all cells come from pre existing cells
.all living things are made from one or more cells

Question 3

First line of defence

Answer 3

Skin barrier to keep pathogens from entering the body. Sweat and natural acids kill pathogens on the surface of the skin. Pathogens get caught in sticky mucus and come out by coughing sneezing or swallowing.

Question 4

Prokaryotic

Answer 4

*do not have a nucleus
*simpler then eukaryotic
* have fewer internal structures

Question 5

Eukaryotic

Answer 5

*have a nucleus which contain genetic material
*have organelles
* larger and more complex then pro cells

Question 6

Photo cynthesis

Answer 6

Stores energy
A chemical reaction in plant cells that converts the suns light energy into chemical energy

Question 7

Cellular resperation

Answer 7

Restores energy
A chemical reaction in cells of most organisms that release the energy needed to carry out life processes.

Question 8

A cell membrane

Answer 8

Surrounds and protects the contents of the cell

Question 9

B Cytoplasm

Answer 9

Jelly like fluid in which internal organelles float

Question 10

C cell wall

Answer 10

Tough ridged structure surrounding the cell membrane .

Question 11

D nucleus

Answer 11

Contains genetic material that controls cell growth

Question 12

E vacuoles

Answer 12

Stores wastes food and substances that the cell cannot use right away

Question 13

F Mitichondria

Answer 13

Release energy from food molecules to power cell processes

Question 14

G chroloplasts

Answer 14

Captures energy from the sun to produce food

Question 15

H vesicles

Answer 15

Transport materials help materials enter and leave the cell

Question 16

Viruses

Answer 16

A virus is a strand of genetic material. Cannot take in nutrients use energy produce waste or reproduce on there own. Need to be inside another cell of another host.

Question 17

Bactria and nitrogen

Answer 17

Plants cannot use nitrogen gas in the atmosphere.
Bacteria that live on the roots of plants change nitrogen into a form that plants can use as nutrients

Question 18

Vaccine

Answer 18

A substance that causes a response in the body that protects it against a specific disease.
Can be injected or taken orally.

Question 19

How do they work

Answer 19

Vaccines cause an immune response for the body.
A vaccinated person has immunity against the disease

Question 20

Benefits of the vaccine

Answer 20

Helps stop an outbreak from turning into an epidemic or pandemic.
Helps stop the spread of disease
Helps to protect people against deadly diseases and those that cause permanent damage

Question 21

Antibiotics

Answer 21

A substance that fights infections.
Kill Bactria or prevent them from growing or reproducing
Not effective against viruses or other microbes

Question 23

Producer

Answer 23

Has ability to produce its own food using the suns energy

Question 24

Consumer

Answer 24

An organism that must eat other organisms to get nutrients

Question 25

Internal stimuli

Answer 25

Something from inside the organisim that causes an organism to respond

Question 26

External stimuli

Answer 26

A change from the external environment that causes an organism to respond

Question 27

Unicellular organisms

Answer 27

An organism made up of one cell

Question 28

Multicellular organisms

Answer 28

An organism made up of many cells

Question 29

Host

Answer 29

The cell that a virus infects

Question 30

Fibres

Answer 30

Structures on a virus that help it attach onto a cell

Question 31

Dormant

Answer 31

Inactive

Question 32

Protein coat

Answer 32

Outer layer that surrounds genetic material

Question 33

Genetic material

Answer 33

Has instructions to make new viruses

Question 34

Microbe

Answer 34

Short form for microorganisms

Question 35

Pathogens

Answer 35

Organism that can cause a disease

Question 37

Decomposer

Answer 37

Organism that breaks down dead wastes and materials.

Question 38

Micro organisms

Answer 38

Organism that can produce its own food through photosynthesis

Question 39

Immunity

Answer 39

An individuals ability to fight pathogens

Question 40

Inflammation

Answer 40

Process that causes an injured body part to become red and swollen

Question 41

Immune system

Answer 41

Body system responsible for defending the body against pathogens

Question 42

First line of defence

Answer 42

Consists of the skin hair in the respitory tract and acid in the summer

Question 43

Second line of defence

Answer 43

Body system responsible for defending the body against pathogens

Question 44

Antibiotics

Answer 44

A substance used to treat bacterial infections

Question 45

Toxoid vaccine

Answer 45

A substance that contains toxins produced by certain types of bacteria

Question 46

Subunit

Answer 46

A substance that contains only certain pieces of the microbe

Question 47

Inactive vaccine

Answer 47

A substance that contains microbes that have been killed

Question 48

Live attenuated vaccine

Answer 48

A substance that contains toxins produced by certain types of Bactria