Cell Transport Mr Rhea Grade 7

Question 1

photosynthesis

Answer 1

the process by which a cell captures energy in sunlight and uses it to make food

Question 2

photo

Answer 2

Greek word that means “light”

Question 3

synthesis

Answer 3

Greek word which means “putting together”

Question 4

chloroplast

Answer 4

found in plant cells; capture energy from sunlight

-they are green organelles in plant cells

Question 5

chlorophyll

Answer 5

main photosynthetic pigment in chloroplasts

-they capture light energy and uses it to power the second stage of photosynthesis

Question 6

autotroph

Answer 6

an organism that makes it own food

example = plant

Question 7

heterotroph

Answer 7

organism that cannot make its own food

examples= zebras, lion

Question 8

respiration

Answer 8

process by which cells obtain energy from glucose

-cells break down simple food molecules such as sugar and release the every they contain

Question 9

mitochondria

Answer 9

rod-dhaped cell structures that convert energy in food molecules to energy the cell can use to carry out its functions

Question 10

selectively permeable

Answer 10

same substances can pass through the membrane while others cannot

Question 11

diffusion

Answer 11

• main method by which small molecules move across the cell membrane
• process by which molecules move from an area of higher concentration to an area of lower concentration

Question 12

osmosis

Answer 12

the diffusion of water molecules through a selectively permeable membrane

Question 13

equilibrium

Answer 13

a state in which the concentration of molecules on both sides of the cell membrane are the same

Question 14

passive transport

Answer 14

the movement of dissolved materials through a cell membrane that requires the cell to use no energy

Question 15

active transport

Answer 15

the movement of material through a cell membrane that does require the cell to use energy