IB Biology: Photosynthesis HL and SL

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Quiz by grenouilleverte3, updated 7 months ago
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Created by grenouilleverte3 almost 5 years ago
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20 questions focused on the process of photosynthesis.

Resource summary

Question 1

Question
Photosynthesis involves the conversion of light into what?
Answer
  • Chemical energy
  • Kinetic energy
  • Light energy

Question 2

Question
What wavelengths of light are in sunlight?
Answer
  • Red, green and blue
  • Red, orange and blue
  • Green, orange and purple

Question 3

Question
The main pigment which absorbs light is called Chloroplast
Answer
  • True
  • False

Question 4

Question
Which wavelengths of light are absorbed most?
Answer
  • Red and blue
  • Green and blue
  • Green and red
  • Yellow and red

Question 5

Question
Light energy absorbed by the pigments are used to do what two things?
Answer
  • Produce ATP and form carbon dioxide
  • Produce ATP and split water molecules
  • Produce ATP and form oxygen only

Question 6

Question
Select 3 methods of measuring rates of photosynthesis
Answer
  • Production of oxygen
  • Production of Carbon Dioxide
  • Uptake of Oxygen
  • Uptake of Carbon Dioxide
  • Decrease in biomass
  • Increase in biomass

Question 7

Question
What is this an image of?
Answer
  • Chlorophyll
  • Chlorophile
  • Chloroplast
  • Pigment in a plant which absorbs light energy

Question 8

Question
The light-independent reactions produce intermediate compounds which are used in the light-dependent reactions
Answer
  • True
  • False

Question 9

Question
The Calvin cycle is part of the light-independent reactions
Answer
  • True
  • False

Question 10

Question
What is a photosystem?
Answer
  • A group of hundreds of chlorophyll molecules located on the inner membrane of the chloroplast
  • A group of hundreds of chlorophyll molecules located in the stroma of the chloroplast
  • A group of hundreds of chlorophyll molecules located in thylakoid membranes
  • A group of hundreds of chlorophyll molecules located in the cytoplasm of the plant cell

Question 11

Question
How does chlorophyll become photoactivated?
Answer
  • The light energy absorbed by the chlorophyll raises an electron in the molecule to be raised to a higher energy level
  • The light energy absorbed by the chlorophyll moves an electron in the molecule to a lower energy level

Question 12

Question
Once the excited electron in a chlorophyll molecule has been passed from molecule to molecule, where does it go?
Answer
  • To the stroma
  • To a series of electron carriers in the thylakoid membranes
  • To a series of electron carriers in the mitochondrial membrane

Question 13

Question
Each time the electron passes to a new electron carrier, it gives up some of its energy. This keeps happening until, at some stage, enough is made to form a molecule of ATP. This process is called what?
Answer
  • Osmosis
  • Facilitated Diffusion
  • Active transport
  • Chemiosmosis

Question 14

Question
The production of ATP using the energy from an excited electron from photosystem II is called what?
Answer
  • cyclic photophosphorylation
  • non-cyclic photophosphorylation

Question 15

Question
Where do the light independent reactions take place?
Answer
  • The stroma of the chloroplast
  • The stroma of the mitochondrion
  • The thylakoid membrane
  • The cytoplasm

Question 16

Question
Which of the following is an essential substrate for the light independent reactions?
Answer
  • oxygen
  • carbon dioxide
  • water
  • a proton

Question 17

Question
What is the enzyme which catalyses the fixation of carbon to ribulose bisphophate?
Answer
  • Ribulase
  • Ribulose biphosphase
  • Rubisco
  • Rubasco

Question 18

Question
What is the product of carbon fixation?
Answer
  • 6-carbon compound which is then split into two molecules of glycerate 3-phosphate
  • 5-carbon compound which is then split into two molecules of glycerate 3-phosphate

Question 19

Question
Which of the following structural features make chloroplasts appropriate for their function?
Answer
  • large surface area
  • small space inside thylakoids
  • fluid stroma

Question 20

Question
Light intensity, carbon dioxide concentration and temperature are all limiting factors in the rate of photosynthesis
Answer
  • True
  • False
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