Study the diagram of some organelles below. a) Identify the organelle marked A. b) Give three functions of the organelle named in 20 (a) above. 21. The equation below represents a metabolic process th

20. Study the diagram of some organelles below.

a) Identify the organelle marked A. (1mk)
The organelle marked A is the Golgi apparatus (or Golgi body/complex).

b) Give three functions of the organelle named in 20 (a) above. (3mks)

• Modification and packaging of proteins and lipids.
• Secretion of substances from the cell.
• Formation of lysosomes.

21. The equation below represents a metabolic process that occurs in the mammalian liver.
Amino acids $\xrightarrow{\text{Enzyme s}}$ Organic compound + urea.

a) Name the process that represents the above equation. (1mk)
The process is deamination.