Chapter 2 Book 2- Lessons 1-3

Question 1

Virus

Answer 1

A tiny non-living particle that enter and then reproduces inside a living cell

Question 2

Host

Answer 2

An organism that provides a source of energy for a virus or an other organism

Question 3

Parasite

Answer 3

An organism that lives in or on a host and causes it harm

Question 4

Vaccine

Answer 4

A substance introduced in to the body to help produce chemicals that destroy specific viruses

Question 5

Bacteria

Answer 5

Single felled organisms that lack a nucleus; prokaryotes

Question 6

Cytoplasm

Answer 6

A region inside the cell membrane, it contains a gel like fluid that moves structures called ribosomes

Question 7

Ribosomes

Answer 7

They are located in the cytoplasm are tiny structures called ribosomes, chemical factories where proteins are produced

Question 8

Flagellum

Answer 8

Flagellum is a bacteria, a long, whip like structure that helps a cell to move

Question 9

Cellular respiration

Answer 9

The process of breaking down food is called cellular respiration

Question 10

Binary fission

Answer 10

One cell divides into two identical cells

Question 11

Conjugation

Answer 11

During conjugation one bacterium transfers some of its genetic material into another bacterium through a thin, thread like bridge

Question 12

Endospore

Answer 12

A small, rounded thick walled resting cell that forms inside a bacterial cell

Question 13

Pasteurization

Answer 13

When food is heated to temperature high enough to kill most harmful bacteria with out making the food taste different

Question 14

Decomposer

Answer 14

Organisms that break down large complex chemicals in dead organisms, in to small simple organisms, natures recyclers

Question 15

Protist

Answer 15

Eukaryotes that can not be classified as animals, plants, or fungi, they are very diverse

Question 16

Protozoans

Answer 16

Unicellular

Question 17

Pseudopods

Answer 17

Temporary bulges of the cells

Question 18

Contractile vacuole

Answer 18

A structure that collects and expels excess water from the cell

Question 19

Cilia

Answer 19

Hair like protons beta with a wave like motion moving the organism, they sweep food into the organism

Question 20

Algae

Answer 20

Autotrophs can be unicellular or multicellular and use pigments to capture the suns energy

Question 21

Pigment

Answer 21

Chemicals that produce color

Question 22

Spore

Answer 22

A tiny cell that is able to grow in to a new organism