Photosynthesis and Cellular Respiration

Question 1

Photosynthesis

Answer 1

-the process is a chemical reaction
-most important chemical on Earth
-life on Earth depends on sun for energy
-the process of changing ligth energy to chemical energy

Question 2

Plants Need…

Answer 2

-sunlight
-carbon dioxide
-water
-chlorophyll

Question 3

Chemical equation for photosynthesis

Answer 3

Begins with sun-coverts in to energy for plants/animals to use

Carbon dioxide+ Water -> Glucose + oxygen

6CO 2+ 6H 2 0 -> C 6 H 12 O 6+ 6O 2

Question 4

Photosynthesis Description

Answer 4

• energy stored as sugar
  -occurs in plants and some algae
  -plants nedd light energy, CO 2 and H 2 O
  -takes place within chloroplast,using chlorophyll

Question 5

Chlorophyll

Answer 5

green pigment in plants

Question 6

Chloroplast structure

Answer 6

-thylakoids
-stroma

Question 7

Thylakoids

Answer 7

-all around the chloroplast
-stacks of things
-light- dependent reaction

Question 8

Stroma

Answer 8

-space in the chloroplast that the thylakoids are stored

Question 9

Light-dependent reaction

Answer 9

-occurs in thylakoids
-takes the energy from the sun and transfers it to electron carriers
(charges batteries)

Question 10

Light-independent reaction

Answer 10

-occurs in stroma (calvin cycle)
-converts the energy from the electron carriers into storage sugars
(uses battery)

Question 11

Light-indy. and Light- dep. Description

Answer 11

-ligth from the sunis converted into energy the plant can use
-uses water and sunlight alon with ATP to move energy out of the thylakoids and into the stroma
-done through electron carriers like NADPH

Question 12

The switch of NADP+ to NADPH

Answer 12

-moves an extra electron (H+ ion) from the H20 and add it to a molecule called NADPH+

Question 13

NADPH

Answer 13

-carrier very excited high-energy electrons out of the thylakoids and into the stroma
-can be used in making sugars by powering the Ligth-indy. reaction in the stroma

Question 14

Calvin Cycle

Answer 14

-uses energy from ATP and NADPH from the light-dep. reactoin to produce high-energy sugars (food)
-is a light-indy. reaction: does not need to have light energy to run it’s reactions

Question 15

Calvin Cycle description

Answer 15

-energy is carried to the stroma in the form of NADPH
-energy is used to convert CO2 from the atmosphere into sugars to be used to help the plant/algae grow

Question 16

Celleur Respiration1

Answer 16

-opposite of photosynthesis
-takes place in mitochondria
-process that releases energy by breaking down food molecules in the presence of oxygen
-end result is around 32 ATP molecules of energy for the cell to use

Question 17

Celleur Respiration

Answer 17

-the breakdown of glucose molecules to release stored energy
-takes place in all living things
-similar to photosynthesis because multi-step process

Question 18

Chemical Equation for Cellular Respiration

Answer 18

C6H12O6+6O2 -> 6CO2+6H2O

Question 19

Stadges of Celleur Respiration

Answer 19

-Glycolysis
-Kreb Cycle
-Electron Transport Chain

Question 20

Glycolysis

Answer 20

-process in the cytoplasm
-glucose is broken down into pyruvate
-2 ATP produced

Question 21

Kreb Cycle

Answer 21

-process in the mitochondria
-pyruvate is converted to free electrons (H+)
-2 ATP produced

Question 22

Electron Transport Chain

Answer 22

-process in the mitochondria
-O2 (inhale) used to remove H and leave electrons= producing H20(waste)
-28 ATP produced

Question 23

Anaerobic Process

Answer 23

-no oxygen required for process
-bacteria and yeast are examples of anarobes
ex.fermentation,glycolysis

Question 24

Aerobic Process

Answer 24

-oxygen is present or required

Question 25

Kreb Cycle Description

Answer 25

-reverse of Calvin cycle where instead sugar enters and carbon dioxide is released as waste
-removes the H+ ions and their energy packed electrons from pyruvate sugar
-result of Kreb Cycle is a large amount of electrons attached to a hydrogen