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Chapter 4/5 test

Science 9

QuestionAnswer
Organelles Cell parts that carry out functions
cell membrane thin layer covering cell
cell wall tough, rigid structure that surrounds cell membrane of a plant cell
Cytoplasm jelly substance that holds the contents of the cell within the cell membrane
Mitochondria provides energy to cell. Changes sugar/glucose into usable energy
Chloroplasts create glucose from energy from the sun, photosythesis
Ribosomes Make protiens
Protiens essential materials required for cell survival
Endoplasmic Reticulum Transport system for materials made in cell
vesicles membrane covered sacs that transport protiens to Golgi Body
Golgi Body Sorts and packages protiens for transport
Vacuoles Storage containers-water
Nucleus Controls cells activities
Nucleolus makes ribosomes and contains chromosomes
What DNA bases made of Adeine, Cytosine, Guanine, Thymine
DNA bases always pair... A with T, and G with C
What does DNA look like A twisted Ladder
What is DNA made of Sugar/glucose and Phosphate
DNA tightly packed is a... Chromosome
Genes Store information used to make protiens
Errors in DNA bases will cause... Gene Mutations
Mutagens are... Factors in the Environment that lead to mutations
Examples of Mutagens are... Smoke, Radiation, and Pesticides
harmful mutations are called Negative mutations
Mutations that aide survival are called Positive mutations
Neutral Mutations do not cause any effects to the organism
A technique for treating gene mutations is... Gene Therapy
Created by: Thumper0185
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