Photosynthesis

Question 1

What is the reactants and products of photosynthesis

Answer 1

Reactants: Carbon Dioxide and Water
Products: Glucose (food) and Oxygen

Question 2

Pigment

Answer 2

“light-absorbing molecule”

When struck by light, it energizes electrons to higher energy levels, the electrons are then passed from electron acceptor to electron acceptor

Question 3

EMR

Answer 3

Electromagnetic Radiation, it occurs in the form of individual packets called photons.

Question 4

Chlorophyll

Answer 4

• pigment located in the mesophyll of leaves
• absorbs all colours but reflects green
• begins the process of photosynthesis

Question 5

Chlorophyll A

Answer 5

-blue/green
-the only pigment that can transfer solar energy to the reactions of photosynthesis directly
includes P700 (reaction center in photosystem 1) and P680 (reaction center in photosystem 2)

Question 6

Chlorophyll B

Answer 6

yellow/green

-accessory pigments that absorb energy that chlorophyll a doesn’t absorb and transfers the energy to it

Question 7

Spectrophotometer

Answer 7

used to produce an absorption spectrum for pigments

Question 8

Chloroplasts

Answer 8

Convert light energy into chemical potential energy in the bonds of the glucose molecule

Question 9

thylakoid disks

Answer 9

discs of chlorophyll

light-dependant reactions take place in the thylakoid membrane

Question 10

Granium

Answer 10

Stacks of thylakoids

Question 11

Stroma

Answer 11

gel-like substance that surrounds the granium

where light-independent reactions take place

Question 12

Light-dependent reactions

Answer 12

Converts Light Energy to Chemical Potential energy

Question 13

Photolysis

Answer 13

Energized chlorophyll uses energy to split water molecules