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BC Science Chapter 4

The nucleus controls the functions of life

QuestionAnswer
The semi-permeable and thin covering around a cell is called a... cell membrane
Plant cells have a tough, rigid structure that surrounds the cell membrane and is called the ... Cell Wall
The jelly-like substance that contains the organelles Cytoplasm
The organelle responsible for providing energy for cells by changing glucose into usable energy mitochondria
The organelle that traps sunlight energy to make glucose chloroplasts
These tiny sphere-like organelles manufacture proteins Ribosomes
These are essential materials required for the cell to carry out the activities necessary for its survival Proteins
A network of membrane covered channels within the cell. It acts like a transport system for materials made in the cell Endoplasmic Reticulum
Membrane covered sacs that form off the ends of the ER and Golgi body vesicles
This organelle packages up proteins for transport OUT of the cell Golgi body
The organelle that controls all the activities of the cell parts nucleus
What is the structure of a DNA molecule? double helix
A substance that contains DNA and proteins is called? Chromatin
The x-shaped structure of compacted DNA Chromosome
Small segments of DNA located at specific places on a chromosome that carry specific information Gene
In order to make a protein, what is the first step within the nucleus? DNA copies it's "instructions" to RNA.
What does the letter "A" stand for in one of the nitrogen bases of DNA? Adenine
What does the letter "T" stand for in one of the nitrogen bases of DNA? Thymine
What does the letter "G" stand for in one of the nitrogen bases of DNA? Guanine
What does the letter "C" stand for in one of the nitrogen bases of DNA? Cytosine
What does Adenine always combine with? Thymine
What does Guanine always combine with? Cytosine
What are the sides of the double helix made of? Phosphate and sugar
Created by: ericahamilton
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