Chloroplast

Question 1

Structure of a chloroplast

Answer 1

• Usually disc shaped
  -double membrane
• thylakoids, sacks to form grana
• stroma, fluid filled matrix
• intergranal lamellae, attach thylakoid in adjacent grana

Question 2

How des the structure of chloroplast maximise the rate of the light dependant reaction

Answer 2

• have ATP synthase channels
• large SA of thylakoid membrane for electron transfer chain
• photosystems position chlorophyll to enable max absorption of light

Question 3

How does the structure of chlorplast maximise the rate f the light independent reaction

Answer 3

• own DNA and ribosomes for synthesis of enzymes
• conc of enzymes and substrates in stroma is high