Glossary of Biology - AS Level - 10.1 - Biological Molecules - Miscellaneous
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- We eat to:
- get energy and acquire raw materials for growth and metabolism.
- Cell surface membranes:
- exert control over what enters and leaves the cell.
- Cell walls are synthesised:
- by linking molecules of glucose to make cellulose. Cell walls on outer surface of cell surface membrane.
- plant cells respire:
- all the time, all of them, even at night.
- composed of different types
- inorganic compounds
- compounds which do not contain carbon, or if they do, they do not also contain hydrogen
- molecules consisting of large numbers of atoms
- metabolic processes / metabolism
- all the chemical reactions which occur in cells
- a sweet-tasting molecule comsisting of a single unit.
- nucleic acid
- a kind of acid abundant in the nuclei of cells, includes DNA and RNA
- organic compounds
- compounds which contain carbon and usually hydrogen
- a chain of sweet-tasting molecules
- the chemical breakdwon of organic molecules with th release of energy; occurs inside cells
- includes two types of processes. Catabolism - large to small, and Anabolism - small to large.
- Difference between cell membranes and cell surface membranes:
- Cell membranes can be found internally forming part of organelle strucutre.
- Cell membranes contain
- lipids and proteins
- Cellulose is
- carb, macromol, polysacch and polymer
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