The cell

2. a substance that speeds up chemical reactions without being consumed
4. cycle that produces CO2, FADH2, ATP, and NADH
5. when the target cells receives a signaling molecule that results in transduction
7. cascades of interactions relay messages from receptors to target cells
8. type of signaling that results from direct contact through things such as gap junctions.
9. microtubules attach to the ____ on each chromatid, jerking the chromosomes back and forth
10. type of signaling that acts on nearby targets
12. pathways that are used to breakdown large molecules into smaller molecules
13. type of signaling that targets the self.
15. the process of adding a phosphate group to an organic molecule
16. pathways that are used to synthesize larger molecules
17. the process of using water to breakdown a molecule
18. "cell suicide"

1. the type of energy that is required to push reactants to the top of the energy barrier
2. reactions that have a net release of energy and negative G value
3. the process of uniting two haploid cells
6. the phase in which the cell duplicates its DNA in preparation for the mitotic phase
11. reactions that absorb energy from its surrounding and have a positive G value
12. the division of the cytoplasm
14. the process of breaking down glucose