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Chap3 Study Guide

Questions from Chapter 3

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