Explain the various ways in which a typical cell is adapted to its functions
A typical cell have the following features:
- Has a cell membrane with pores: that regulates substances entering and leaving the cell; cytoplasm
- Contain sugars and salts: for maintaining its osmotic pressure also has a liquid medium; for all biochemical reactions.
- Nucleus: contain chromosomes having hereditary material and controls all the activities of the cell.
- Ribosomes : are sites for protein synthesis.
- Golgi bodies/apparatus: for secretion of hormones, enzymes and formation of lysosomes.
- Lysosomes contain lytic enzymes for breaking down worn-out organelles.
- Secretory vesicles: formed from golgi apparatus for secreting substances;
- Smooth endoplasmic reticulum: synthesizes and transports lipids;
- Rough endoplasmic reticulum: transport proteins.
- Nucleolus: controls the activities of the nucleus, produces ribosomes
- Mitochondria form sites for energy production;
- Centrioles formation of cilia and flagella, forms spindle fibres used in cell division.
- Plant sap vacuoles: store salts and other dissolved substances, controls osmotic pressure and turgidity of cells.
- Food vacuoles involved in digestion of engulfed food.
- Chloroplasts: form sites for photosynthesis in plant cells.
