A-LevelBiologyCell membranes and transport9700/12 · Feb/Mar 2018 · Q131 Mark

Lysosomes contain many different hydrolytic enzymes that may act within cells (intracellular enzymes) or outside cells (extracellular enzymes). Which process must occur in order for lysosomal enzymes to act outside the cell?

Aactive transport

Bendocytosis

Cexocytosis

Dphagocytosis

✓ Correct answer

C: exocytosis

Oracle Prep sorts past-paper questions by topic, so you can drill Cell membranes and transport and see which topics are most likely to come up next.

Topic: Cell membranes and transport, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Feb/Mar 2018 Paper 1 Variant 2, question 13.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

The cell surface membrane structure is described as a 'fluid mosaic'. Which statement describes the 'mosaic' part of …

Cholesterol is an integral component of the cell surface membrane. Which statement about cholesterol is correct?

Which type of bond in phospholipids has a role in increasing the fluidity of cell surface membranes?

Which statement explains why it is necessary to use an electron microscope to see the cristae of a mitochondrion?

Some stains can be used to identify cell structures in living cells. A dilute solution of one stain causes the whole …

When mucus is secreted from a goblet cell, these events take place. 1 addition of carbohydrate to protein 2 fusion of…