Biology Unit 2

Question 1

The amount of energy required to produce a chemical product

Answer 1

Activation energy

Question 2

Molecules that speed up chemical reactions

Answer 2

Catalyst

Question 3

The basic unit of life

Answer 3

Cell

Question 4

A type of protein that lowers the activation energy of a reaction to speed it up or catalyze it

Answer 4

Enzymes

Question 5

Cells that are more complex contain membrane-bound components or organelles

Answer 5

Eukaryotic

Question 6

Human immunodeficiency virus. A type of virus that invades cells of the immune system reproduces through the lysogenic cycle and causes acquired immunodeficiency syndrome or Aids

Answer 6

HIV

Question 7

The limitation of viruses to a small range of hosts as a result of complementary virus and cell shapes

Answer 7

Host specificity

Question 8

A virus that reproduces through the lytic cycle

Answer 8

Influenza

Question 9

A type of viral reproduction in which a virus invades a host cell and lies dormant for a long. Of time before licing the cell or it bursting open

Answer 9

Lysogenic

Question 10

A type of viral reproduction that involves the lysis or bursting open of the host cell

Answer 10

Lytic

Question 11

Describes organisms that are made of many cells that work together to perform life processes

Answer 11

Multicellular

Question 12

Collections of tissue that work together to perform a similar function

Answer 12

Organ

Question 13

Collections of organs that work together to perform a similar function

Answer 13

Organ system

Question 14

Subcellular units that are enclosed by a membrane and perform specific functions. Examples include the nucleus and mitochondria

Answer 14

Organelles

Question 15

Cells that do not contain membrane-bound components or organelles

Answer 15

Prokaryotic cells

Question 16

When cells develop to have a specific shape to perform a specific function examples include red blood cells in animals and xylem in plants

Answer 16

Specialize

Question 17

A specific molecule that fits into the active site of an enzyme. The molecule or molecules that an enzyme acts on

Answer 17

Substrate

Question 18

Collections of specialized cells that work together to perform a similar function

Answer 18

Tissue

Question 19

Describes organisms that exist as one cell carrying out all life processes. Examples include bacteria

Answer 19

Unicellular

Question 20

Microscopic non-living particles made of proteins and nucleic acids that require a host to reproduce

Answer 20

Viruses