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Mr. Mac's Cells
Basic Cell Anatomy
Question | Answer |
---|---|
What is a cell? | A cell is the smallest part of an organism that performs all the necessary function of life. It is the basic unit of all life. |
What is the covering around a cell called. | Cell membrane or plasma membrane (same thing) |
What does the cell membrane (plasma membrane) do? | It forms barrier around the cell to protect it. It lets good things in and waste out. |
What tells the cell how to perform and what to do? | Nucleus |
Tell me about the nucleus of a cell. | It has all the information about what you are (DNA). It has the master plans. It is the control center of the cell. |
What is DNA? | DNA is the master plans or blue print for the cell and the whole organism in which the cell is found. DNA contains all the genetic material of the organism. DNA stands for deoxyribonucleic acid. It is in a double helix shape. |
What are all the little structures in cells that do different jobs called? | Organelles |
Are there many organelles? | Yes, but we will only study a few. |
Do all cells have the same organelles? | No! Plant cells have a few different organelles than animal cells. And eukaryotic cells have organelles prokaryotic cells don't. |
Name some organelles plant cells have that animal cells don't. | Chloroplasts and cell walls. |
What are chloroplasts? | Chloroplasts are organelles found in plant cells that carry out photosynthesis. Chloroplasts contain chlorophyll. |
What is a cell wall? | A cell wall is an additional outer layer of a plant cell. This layer adds strength and support to the cell and organism. |
What organelles do plant and animal cells share? | Many! A nucleus, mitochondria, cell membrane, ribosomes and many others. |
How does a cell get energy? | The mitochondria is the "power house" of the cell. In the mitochondria food and oxygen are turned into energy. This process is called... cellular respiration! |
Do all living things have cells? | Yes |
Is water made of cells? | No. Water is an abiotic factor in a ecosystem. Water is not a living thing! |
What is in between all the organelles in a cell? What "fills" up the rest of the space in a cell? | There is a watery gel-like substance that fills the "empty" space in a cell. |
Do plant cells have chloroplasts? | Yes -Animal cells don't. |
What are lysosomes? | Organelles that are found in animal cells that clean up and break down dead and un-needed cell parts to be reused or disposed of. |
What is Cell Theory? | 1. The cell is the basic unit of life. 2. All living things are made of cells. 3. All cells come from other cells. |
Where does photosynthesis happen? | In the chloroplasts of plant cells. |
Where does cellular respiration happen? | In the mitochondria of BOTH plant and animal cells |
What does unicellular mean? | one cell |
What is the lowest level of organization in organisms? | The cell |
What does multicellular mean? | many cells |
What is an organism? | A living thing |