Bioenergetics

Question 1

What do organisms make from photosynthesis

Answer 1

glucose, oxygen

Question 2

Photosynthesis is a series of chemical reactions that uses light energy from the sun to ……..

Answer 2

make glucose molecules

Question 3

Carbon dioxide and ….. are needed for photosynthesis to take place.

Answer 3

water

Question 4

….. + Water (—>(…….)) Glucose + ……..

Answer 4

CO2, light energy, oxygen

Question 5

Chemical formula for glucose

Answer 5

C6H12O6

Question 6

Some of the glucose used by photosynthesis is used in ……. to release …….

Answer 6

cellular respiration, energy

Question 7

During photosynthesis light is absorbed by a pigment called ……..

Answer 7

chlorophyll

Question 8

Photosynthesis is an ………. reaction

Answer 8

endothermic

Question 9

Glucose not immediately used can be stored in the ……, …… or …….. in a plant. This is done by converting it into ……

Answer 9

roots, stem, or leaves, starch

Question 10

Starch is soluble. True or false

Answer 10

False. Starch is insoluble and cannot diffuse in and out of a cell.

Question 11

Cell walls are formed from ….

Answer 11

cellulose

Question 12

Word equation for aerobic respiration

Answer 12

glucose + oxygen -> carbon dioxide + water

Question 13

Word equation for anaerobic respiration in muscles

Answer 13

glucose → lactic acid (+ energy released)

Question 14

Word equation for anaerobic respiration in plants

Answer 14

glucose → ethanol + carbon dioxide (+ energy released)

Question 15

Define metabolism

Answer 15

The chemical processes that occur within a living organism in order to maintain life

Question 16

5 uses of glucose

Answer 16

Respiration, for storing as starch, converting into cellulose for building cell walls, converting into proteins for cell repair

Question 17

Uses for fermentation

Answer 17

Bread, alcohol

Question 18

Inverse square law

Answer 18

light intensity ∝ 1/distance²