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Ch 6, 7 & 12
covers everything
| Question | Answer |
|---|---|
| What are the 2 limiting factors to cell size? | 1) surface area:volume ratio2) DNA |
| What is the name for unwound DNA and protein in the nucleus? | Chromotin |
| What are ribosomes used for? | producing proteins from mRNA |
| What is the purpose of the Golgi Apparatus? | to modify and package proteins and lipids into vesicles. |
| Contractile Vacuole | used by protists(single celled orgamism) to remove excess water from themselves. |
| What is the main component of the plant cell wall? | polysaccharide cellulose |
| what is the cell(plasma) membrane consisted of? | phospholipids and proteins |
| why is the selectively permeable membrane important? | Because it could keep out taxic materials or keep good things inside the cell |
| what are channel proteins? and where are they located? | -Amino acids pushing everything else out of the way to make a hole.-plasma membrane |
| which one uses enerygy: passive or active? | active |
| What does a Paramecium maintain? | osmoregulation |
| what is pumped into the cell by ATP?what is pumped out of the cell by ATP? | -sodium ions-potassium ions |
| cotransport | the indirect movement of one substance by transporting another substance. |
| how many sets of chromosomes does a diploid (2n)cell have? | 2 sets |
| what type of cell is a diploid? | somatic cells, zygotes |
| how many sets of chromosomes are in a halpoid (n) cell? | 1 set |
| How many gametes (haploid cell) does it take to make you? | 2 |
| what does the cell cycle control system do? | checks the cells before they can divide |
| cyclin-dependent kinasses (Cdk) | -where kinases depends on the accumulation of cyclin in order to be activated to determine if the cell is able to divide.-part where cell can't divide because its too small and doesn't have machinery to make cyclin |
| what are the 3 checkpoints in the cell cycle control system? | G1 phaseG2 phaseM phase |
| what is mitosis? | division of the nucleus |
| what is cytokinesis? | division of the cytoplasm |
| what happens in S phase? | chromosomes are copied |
| what is the place called where the spindle fibers grab on to the chromosomes? | kinetochore |
Created by:
ashleyholland00
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