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Cell's Jobs
Human Body Unit
Question | Answer |
---|---|
CELL | the smallest unit of life in a living thing; take in materials and release energy and waste products. |
MUSCLE CELLS | long and thin and can contract, or become shorter; are active and use up LARGE amounts of Energy. |
Why do muscles cells have lots of MITOCHONDRIA? | They require a lot of energy |
SKIN CELLS | flat, overlapping, and become tough over time; form a protective layer around an animal's body. |
NERVE CELLS | long and shaped like wires, which allow them to deliver messages quickly from one part of the body to another. |
RED BLOOD CELLS | deliver oxygen to different body parts and remove wastes. |
WHITE BLOOD CELLS | can change shape and leave the vessels to help protect the body from disease/infection. |
How many different types of cells is your body made up of? | about 200 |
LEAF CELLS | BRICK shaped; contain many chloroplasts |
Why do leaf cells contain so many chloroplasts? | they receive a lot of sunlight, have openings through which carbon dioxide enters the plant, and contain water. All the requirements for PHOTOSYNTHESIS. |
STEM CELLS | long and tube shaped for moving water and other materials through the plant. |
ROOT CELLS | BLOCK shaped |
SPECIALIZED CELLS | work as a team to meet the life activities of every cell inside a many-celled organism. |
TISSUES | in a many-celled organism, a group of similar cells that work together to do the same sort of work. |
ORGANS | in many-celled organisms, a structure made up of two or more different types of tissue that work together to keep an organism alive. |
ORGAN SYSTEM | a group of different organs that work together to do a specific job. |