Cells

3. Carrier proteins change this in order to transport substances into the cell
5. An area where a substrate molecule fits into an enzyme (6,4)
10. Found only in plant cells, this semi-rigid layer on the outside of the cell is composed of cellulose (4,4)
11. Poisonous substances that binds to the active site and prevents the enzyme from catalysing its normal substrate
14. Pigment responsible for giving plants their green colour
15. Cellular transport that moves particles against the concentration gradient (6,9)
17. Terms used to describe a protein that has changed shape and no longer functions
20. The name for a molecule that fits inside the active site of an enzyme
21. Diffusion of water across a semi-permeable membrane
24. Jelly-like fluid found within a cell

1. Site of cellular respiration
2. Cellular transport processes that require no energy expenditure (7,9)
4. The name for enzymatic reactions that turn smaller substrate molecules into a larger product
6. Movement of particles from an area of high concentration to an area of low concentration
7. Substances that are dissolved in a solvent
8. Described as a lipid bi-layer (6,8)
9. Flat disk-shaped structures inside a chloroplast
12. Proteins used to facilitate the diffusion of large particles across the plasma membrane - protein...
13. Name of the process where anaerobic respiration takes place in the cytoplasm
16. Plant cell organelle that absorbs light to make sugar via photosynthesis
18. The name for enzymatic reactions that turn a large substrate into two or more smaller products
19. Large molecule embedded in the plasma membrane
22. Aerobic respiration required glucose and what other reactant to produce ATP
23. Name for a single stack of thylakoids in a chloroplast