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Chap3 Study Guide
Questions from Chapter 3
| Question | Answer |
|---|---|
| The part of the cell that regulates what can enter or leave is....... | Plasma Membrane |
| The cytosol and organelles make up the....... | Cytoplasm |
| If Solution A has more solute and LESS water than does Solution B, then Solution A is.........to Solution B | Hypertonic |
| Mechanisms that require cellular energy to move substances across the plasma membrane are.......transport mechanisms. | Active |
| Distinct segments of DNA that code for specific proteins are called........ | Genes |
| The nucleus is called the cell's control center because it contains the............... | Chomosomes |
| Where in the cell does ATP synthesis occur? | Mitochondria |
| The movement of solute from a region of high concentration to one of lower concentration is called....... | Diffusion |
| Rupture of red blood cells placed in a hypotonic solution solution us called...... | Hemolysis |
| List 6 characteristics of life shown by cells, | Organization, Metabolism, Responsiveness, Homeostasis , Growth and Reproduction |
| List four substances found within the plasma membrane. | Phospholipids, cholesterol, carbs and proteins |
| What are cell organelles? | Specialized structures that perform different tasks. |
| What are the two types of organelles used for movement, and what do they look like? | Cilia (small hairlike projections) Flagellum (long whiplike extension) |
| Solution that has the SAME concentration as the cytoplasm and water moves into and out of the cell at the same rate is called........ | Isotonic |
| Passage of water and disolved materials through a membrane down a pressure gradient from an area of higher pressure to an area of lower pressure is....... | Filtration |
| What must happen to the DNA in a cell before mitosis can occur? During what state in the cell life cycle does this occur? | The DNA must replicate (double). Replication occurs during interphase. |
| What are the building blocks of nucleic acids? | Nucleotides |
| What category of compounds does DNA code for in the cell? | Proteins |
| What three types of RNA are active in protein synthesis? | Messenger , Ribosomal and Transfer |
Created by:
Jessica Venyke
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