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Cell Functions GR 5

Cell Structures GR 5

TermDefinition
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? Muscle cells require a lot of energy and mitochondria is the organelle that converts food into 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 with small hair-like structures to pull in water
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.
Created by: psteenhoek
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