Cell Biology Flashcards
What structures are in an animal cell?
Cell membrane Cytoplasm Mitochondria Ribosomes Nucleus
What structures are in a plant cell?
Cell wall Cell membrane Vacuole Cytoplasm Chloroplasts Nucleus
What structures are in a bacterium?
Capsule Plasma membrane Ribosomes Pili Nucleoid (DNA) Flagellum Cell wall Plasmid
What are the products of Mitosis?
2 genetically identical daughter cells
What function do cells made through Mitosis have?
Repair of damaged tissue
What are the products of Meiosis
4 non-identical daughter cells
What function do cells made from Meiosis have?
Produces new genetic combinations in individuals
Increases variety of offspring
Are chromosomes pulled apart in Mitosis or Meiosis?
Mitosis
Are there two cell divisions in Mitosis or Meiosis?
Meiosis
What are stem cells?
Cells w/ the ability to turn into any type of cells in the organism
Are embryonic or adult stem cells more versatile?
Embryonic
What process changes cells in order to be specialised?
Differentiation
What is an example of a specialised cell?
- Sperm cells - reproduction
- Nerve cells - rapid signalling
- Root hair cells - absorbing water + minerals
- Phloem/Xylem - transporting substances
Enzymes are…
… biological catalysts which control reactions in cells
What are enzymes made of?
Long chains of amino acids which form specific shapes