Science Chapter 3 Flashcards Preview

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Flashcards in Science Chapter 3 Deck (43)
1

passive transport:

movement of molecules w/o energy input

2

osmosis:

passive transport of water via diffusion

3

active transport:

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

4

equilibrium:

when molecules in a substance are spread evenly

5

producer:

something that makes it's own food

6

enzymes:

speeds up chemical reactions

7

exocytosis:

when vesicles release their contents

8

metabolism:

all the activity that occurs in the interior of an organism

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diffusion:

movement of molecules to where less molecules are

10

consumer:

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

11

organic compound:

containing carbon and hydrogen

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fermentation:

releasing energy w/o oxygen w/ glucose

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inorganic compound:

elements other than carbon and hydrogen

14

endocytosis:

taking substances into a cell and surrounding it

15

mixture:

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

16

compound:

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

17

matter:

has mass and takes up space

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energy:

the ability to cause change

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matter is made of:

atoms

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elements have kind of atom

one

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molecular compound ->

molecule

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ions:

electrically charged atoms, positive or negative

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ions of _____ charges attract one another neutral compounds

opposite

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carbon:

supply energy for cell process

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lipids:

store and release energy

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most living things use ____ to transport materials

water

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

permeable

28

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

light energy

29

cellular respiration:

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

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carbohydrates are broken down into...

glucose molecules

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Cellular respiration uses:

Oxygen and produces CO2

32

fermentation occurs in the...

cytoplasm

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the opposite

photosynthesis and respiration

34

bubbles=

CO2

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Fermentation produces:

sugars and oxygen

36

protons have a _____ charge:

positive

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neutrons have a _____ charge:

neutral (no charge)

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electrons have a _____ charge:

negative

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atom # =

protons

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atom mass =

protons + neutrons

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Photosynthesis is in:

chloroplast

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COHN:

Carbon, Oxygen, Hydrogen, Nitrogen

43

Photosynthesis:

water and carbon dioxide mixed, w/ energy