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Gaps In My Knowledge
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- 1NucleusThe structure that controls and directs the activities of the cell.
- 2MetabolismIntegrated network of all the biochemical reactions of life.
- 3The cell membrane is also known as the.....plasma membrane and is a barrier controlling exit and entry to and from the cytoplasm.
- 4What is the storage carbohydrate in plant and animal cells?Plant cells - Starch
Animal Cells - Glycogen - 5Define Chromatid, Chromosome and ChromatinChromatid - One of two copies of a chromosome after it has replicated.
Chromosomes - Long threads of DNA which are linear sequences of genes packaged with protein.
Chromatin - A nuclear protein material in the nucleus of a eukaryotic cell during interphase. - 6GeneA specific length of the DNA double helix which codes for a protein.
- 7The potential of each cell to specialise in any number of different ways is called..Totipotency
- 8Facilitated DiffusionDiffusion across membranes facilitated by molecules in the membrane.
- 9Give an example of facilitated diffusion.In mitochondria, the movement of ADP into and the exit of ATP from it.
- 10Give 3 examples of active transport.In the gut where absorption occurs;
Active uptake of ions by plant roots;
In nerve fibres where an impulse is propagated. - 11Name 4 differences between lipids & Carbohydrates.Lipids: More energy per gram; more metabolic water produced on oxidation; insoluble; not quickly 'digested'.
Carbohydrates: Less energy per gram; produce less metabolic water; highly soluble; easily hydrolysed. - 12Name 4 roles of fats and oils.1. Energy store & metabolic water source;
2. Subcutaneous fat as a buoyancy aid & thermal insulation;
3. Water-proofing of hair and feathers;
4. Electrical insulation. - 13How do proteins differ from carbohydrates?They contain nitrogen (and sometimes sulphur) as well as oxygen, carbon and hydrogen.
- 14Name 3 factors that affect the rate of enzyme-catalysed reactions.pH / Temperature / Substrate Concentration.
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- Descripción
- These are all the facts I know I struggle to remember D:
- Creado por
- cloud.berry · abr 2014
- Actualizado
- 19 feb 2016
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