Organelles & Compartmentalisation (DP IB Biology: SL): Exam Questions

8 mins4 questions
1
1 mark

Which of the following is true of ribosomes?

  • Proteins for transport are synthesised by free ribosomes. 

  • Ribosomes consist of a large and a small subunit composed of protein and transfer RNA (tRNA).

  • Ribosomes exist in the cells of all living organisms.

  • Ribosomes on the rough endoplasmic reticulum synthesise proteins for retention within the cell.

2
1 mark

The chloroplast is adapted for photosynthesis. 

Which of the following is not an adaptation of the chloroplast for photosynthesis?

  • A large surface area of thylakoid membranes with photosystems.

  • A large volume of fluid inside thylakoids.

  • Compartmentalisation of enzymes and substrates of the Calvin cycle in the stroma.

  • Chloroplast DNA that contains genes which code for some of the proteins and enzymes used in photosynthesis.