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State Objectives

Semester Exam Review pg 1

What are the differences in a plant and animal cell cell? Plant cells have a cell wall and chloroplast animal cells do not.
nucleus directs the cells activities (control center)
cytoplasm jelly-like substance that all other organelles float in
cell membrane the protective layer around all cells. It is the outer layer of the animal cell and inside the cell wall of the plant cell. It protects the cell. It allows water and nutrients into the cell. It allows waste to leave the cell.
cell wall tough rigid outer covering of the plant cell that protects and gives shape to the cell.
mitochondrian where energy from food is stored until it is released during respiration. It releases energy by breaking down food into carbon dioxide and water. Muscle cells contain more of this because they are more active and use more energy.
nuclear membrane surrounds the nucleus and separates it from the cytoplasm. Materials enter and leave the nucleus through the openings of the membrane.
epithelial skin cover and protects the body
nerve tissue carries messages. (brain and spinal cord) Nerve tissue is long and thin with lots of branches like a tree
bone tissue gives the body structure and shape
blood cells red blood cells carry oxygen. white blood cells kills germs.
muscle tissue long and stretchy.
Voluntary muscle tissue You decide to move and joined to bones.
Involuntary muscle tissue work inside the body without you thinking about it. (Stomach, heart, intestines, lungs, etc...)
Viruses destroy body tissue or interrupt important body activities. _________ can coney survive inside living cells. They cannot be treated with antibodies. There are some vaccines to prevent some types of _________.
Ways to prevent viruses... Wash hands. Stay away from sick people. Keep animals like mosquitoes and tics that spread disease under control
Bacteria live in the air, foods, and things you touch. They can live in the ground and water. They live on our skin and in our bodies. _____________ pathogens cause illness and disease.
Bacteria They can enter the body through the air we breathe, cut in the skin, or in food we eat. They can be treated with antibiotics and vaccines. ____________ slow the normal growth and activities of body cells and tissue.
Parasites organisms that live in or on other organisms. They take nutrients from the organism they live in or on. They also can spread diseases. They also can destroy tissue and blood cells.
Created by: mgrant