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Chapter 6, 7, 12
| Question | Answer |
|---|---|
| 2 limits on cell size. | surface area to volume ratio and DNA. |
| organelle responsible for modifying and "shipping" proteins from the ER to other parts of the cell | Golgi apparatus |
| special type of passive transport that involves diffusion of water molecules | osmosis |
| movement of molecules against concentration gradient; uses energy | active transport |
| phagocytosis and pinocytosis | endocytosis |
| somatic cells are reproduced through.. | mitosis |
| combination of two gametes to form a zygote | fertilization |
| which phase of the cell cycle involves the division of the cell's cytoplasm? | cytokinesis |
| what key event of the cell cycle occurs during the S phase? | DNA sythesis (DNA is copied) |
| plants cells do not divide with a cleavage furrow. instead they use... | a cell plate |
| sodium-potassium pumps are an example of which type of transport? | active |
| what is the function of cholesterol molecules in the cell membrane? | they buffer the effect of temp. change on membrane fluidity |
| when the chromosomes are lined up along the middle of the cell during mitosis | metaphase plate |
| _____ synthesis occurs in the rough ER. | protein |
| "ID tags" that help with cell-to-cell recognition | glycoproteins |