Science Chapter 3

Question 1

passive transport:

Answer 1

movement of molecules w/o energy input

Question 2

osmosis:

Answer 2

passive transport of water via diffusion

Question 3

active transport:

Answer 3

protein binds to a particle and uses energy to move through the cell membrane

Question 4

equilibrium:

Answer 4

when molecules in a substance are spread evenly

Question 5

producer:

Answer 5

something that makes it’s own food

Question 6

enzymes:

Answer 6

speeds up chemical reactions

Question 7

exocytosis:

Answer 7

when vesicles release their contents

Question 8

metabolism:

Answer 8

all the activity that occurs in the interior of an organism

Question 9

diffusion:

Answer 9

movement of molecules to where less molecules are

Question 10

consumer:

Answer 10

an organism that can’t make it’s own food

Question 11

organic compound:

Answer 11

containing carbon and hydrogen

Question 12

fermentation:

Answer 12

releasing energy w/o oxygen w/ glucose

Question 13

inorganic compound:

Answer 13

elements other than carbon and hydrogen

Question 14

endocytosis:

Answer 14

taking substances into a cell and surrounding it

Question 15

mixture:

Answer 15

is a blend of two or more substance , each of which retains its identity

Question 16

compound:

Answer 16

substance made up of two or more elements which are chemically combined

Question 17

matter:

Answer 17

has mass and takes up space

Question 18

energy:

Answer 18

the ability to cause change

Question 19

matter is made of:

Answer 19

atoms

Question 20

elements have kind of atom

Answer 20

one

Question 21

molecular compound ->

Answer 21

molecule

Question 22

ions:

Answer 22

electrically charged atoms, positive or negative

Question 23

ions of _____ charges attract one another neutral compounds

Answer 23

opposite

Question 24

carbon:

Answer 24

supply energy for cell process

Question 25

lipids:

Answer 25

store and release energy

Question 26

most living things use ____ to transport materials

Answer 26

water

Question 27

cells have a selectively ______ membrane what regulates what goes in/out of our cell

Answer 27

permeable

Question 28

plants use _____ _____ to convert it into energy/sugars (food)

Answer 28

light energy

Question 29

cellular respiration:

Answer 29

when chemical reactions break down food molecules into simpler substances and release stored energy

Question 30

carbohydrates are broken down into...

Answer 30

glucose molecules

Question 31

Cellular respiration uses:

Answer 31

Oxygen and produces CO2

Question 32

fermentation occurs in the...

Answer 32

cytoplasm

Question 33

the opposite

Answer 33

photosynthesis and respiration

Question 34

bubbles=

Answer 34

CO2

Question 35

Fermentation produces:

Answer 35

sugars and oxygen

Question 36

protons have a _____ charge:

Answer 36

positive

Question 37

neutrons have a _____ charge:

Answer 37

neutral (no charge)

Question 38

electrons have a _____ charge:

Answer 38

negative

Question 39

atom # =

Answer 39

protons

Question 40

atom mass =

Answer 40

protons + neutrons

Question 41

Photosynthesis is in:

Answer 41

chloroplast

Question 42

COHN:

Answer 42

Carbon, Oxygen, Hydrogen, Nitrogen

Question 43

Photosynthesis:

Answer 43

water and carbon dioxide mixed, w/ energy