Science Mod 4

Question 1

Organisms

Answer 1

an individual form of life, such as an animal, plant, or single-celled life form

Question 2

Element

Answer 2

a substance that can not be broken down into simpler substances; classified by its atomic number

Question 3

Molecule

Answer 3

Two or more atoms bonded together

Question 4

Compound

Answer 4

A molecule consisting of atoms of two or more different elements

Question 5

Cell

Answer 5

The basic unit of structure and function in living organism

Question 6

Multicellular

Answer 6

A living organism made of more than one cell

Question 7

Tissues

Answer 7

group of specialized cells that work together to perform a specific function

Question 8

Organs

Answer 8

Part of an organism, made of cells and different tissues, which performs a larger function.

Question 9

Organ system

Answer 9

a group of organs that work together and perform one or more major functions

Question 10

Unicellular

Answer 10

A living organism made of one cell

Question 11

Cell theory

Answer 11

A widely accepted explanation of the relationship between cells and living things

Question 12

Hypothesis

Answer 12

Something not proved but assumed to be true for purposes of further study or investigation

Question 13

Microscope

Answer 13

an instrument that makes small objects look larger

Question 14

Replicable

Answer 14

Able to be repeated

Question 15

Scientific theory

Answer 15

Well-supported and widely accepted explanation of the way nature works based on observation and experimentation

Question 16

Vacuole

Answer 16

water-filled sacs inside a living cell that store food, water, nutrients, and waste

Question 17

Prokaryote

Answer 17

cell that does not have a nucleus

Question 18

Organelle

Answer 18

any organized or specialized structure within a living cell

Question 19

Nucleus

Answer 19

a large oval structure that directs all of the cel’s activities; only found in eukaryotes

Question 20

Mitochondria

Answer 20

rod-shaped structures where cellular respiration takes place inside living cells

Question 21

Eukaryote

Answer 21

cell that has a nucleus

Question 22

Cytoplasm

Answer 22

the thick, watery, clear, gel-like fluid within a living cel, excluding the nucleus

Question 23

Chloroplasts

Answer 23

green structures inside plant cells where photosynthesis takes place

Question 24

Cell wall

Answer 24

a rigid layer that surrounds the cell membrane of plant cells

Question 25

Cell membrane

Answer 25

the membrane surrounding a cell that allows substances to pass in and out

Question 26

Solvent

Answer 26

substance that dissolves a solute

Question 27

Solute

Answer 27

substance being dissolved by a solvent

Question 28

Passive transport

Answer 28

moving a substance from a high concentration to a low concentration

Question 29

Osmosis

Answer 29

diffusion of water through a cell membrane

Question 30

Nucleoid

Answer 30

an irregular-shaped region within a prokaryotic cell that contains all or most of the genetic material DNA

Question 31

Diffusion

Answer 31

the process of molecules moving from an area of higher concentration to an area of lower concentration

Question 32

Concentration

Answer 32

proportion of the solute (substance being dissolved) to solvent (substance that dissolves the solute)

Question 33

Active transport

Answer 33

moving a substance from a low concentration to a high concentration