Cellular Respiration and Photosynthesis

Question 1

The light capturing Organelle-The chloroplast

Answer 1

An organelle primarily found within the palisade cells of a plant

Question 2

Photosynthesis

Answer 2

The synthesis of glucose using light energy
Formula: 6CO2 + 6H20 + Light energy ——-> C6H12O6 + 602
Photosynthesis combines carbon dioxide, water, and light energy to generate glucose and oxygen

Question 3

Stroma

Answer 3

The liquid portion found within a chloroplast

Question 4

Granum

Answer 4

A stack of thylakoid discs

Question 5

Thylakoid

Answer 5

A single disc containing pigments in its membrane

Question 6

The energy of light- EMR

Answer 6

The electromagnetic spectrum is the range of energy released by solar fusion (stars) and other light sources

Question 7

Plant pigments

Answer 7

compounds that convert EMR into usable forms of energy

Question 8

Chlorophyll A

Answer 8

A light absorbing molecule that converts light energy into electron excitation
Magnesium is at the core

Question 9

Chlorophyll B

Answer 9

A secondary pigment that absorbs light energy not absorbed by chlorophyll A.
This is also described as an accessory pigment or an antennae pigment
these transfer energy to Chlorophyll A
when leaves loose their ability to make Chlorophyll A, accessory pigments are more visible

Question 10

The Accessory Pigments

Answer 10

Chlorophyll B
Carotenes
Xanthophyll

Question 11

Electron Excitation

Answer 11

The centre of a pigment contains magnesium electrons at a ground state
Light energy (photons) “excites” electrons to higher energy levels
This energy is then transferred to systems within a plant.
These systems are used to transfer protons (h+) and produce essential molecules