Science L.12-16

Question 1

photosythesis

Answer 1

the process of a cell capturing sunlight and uses it to make food

Question 2

autotroph

Answer 2

an organsism that makes its own food

Question 3

heterotroph

Answer 3

an organism that cannot make its own

Question 4

pigment

Answer 4

colored chemical compounds

Question 5

chlorophyll

Answer 5

the main photosythetic pigment in chloroplasts

Question 6

stomata

Answer 6

an opening in the underside of a leaf to let carbon dioxide in

Question 7

respiration

Answer 7

how cells obtain glucose

Question 8

fermentation

Answer 8

provides energy for cells without using oxygen

Question 9

cell cycle

Answer 9

the regular sequence of growth and division that cells undergo

Question 10

interphase

Answer 10

the first stage of the cell cycle. Cell grows, makes copy of DNA, prepares to split

Question 11

replication

Answer 11

when the cell copies its DNA and Nucleus

Question 12

mitosis

Answer 12

when the cell’s nucleus splits into two new nuclei

Question 13

chromosome

Answer 13

the chromatin in the nucleus condenses to form this

Question 14

cytokinesis

Answer 14

last stage, the cells are fully separated

Question 15

cancer

Answer 15

a disease when cells grow and divide uncontrollably

Question 16

mutation

Answer 16

a change in the DNA

Question 17

tumor

Answer 17

a mass of abnormal cells

Question 18

chemotherapy

Answer 18

the use of drugs to treat disease