Cells AS
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Cells consist of | organelles
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| All living organisms on Earth are made up of microscopic structures called | cells
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| secretion of the cell membrane; it provides protection from physical injury, and with the vacuole, it provides structural support. | cell wall
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| stores water ingested food in a fluid sack | vacuole
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| contain enzymes specialized to break down ingested materials, secretions, and wastes. | lysosomes
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| processes, sorts, and modifies proteins in cells. | Golgi apparatus
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| like the “brain” of the cell. | nucleus
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| is composed of long, thin strands of DNA which contains “instructions” that control cell metabolism and heredity | chromatin
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| like a stomach for the cell | Mitochondria
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| the food producers in a plant cell | Chloroplasts
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| transports chemicals between and within cells | endoplasmic reticulum
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| group of interconnected cells | tissue
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| a group of tissues that work together to perform a specific function | organ
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| the fourth, and highest, level of organization | Organ systems
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| send signals from the central nervous system to the cells of the rest of the body | Nerve impulses
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| are released by endocrine glands and are carried by the bloodstream to target cells | Hormones
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| The body attempts to maintain internal temperatures within this range through the process of | homeostasis
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| If the pH rises due to illness or elevated carbon dioxide levels, the body increases the | rate of respiration
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| for the pH of the blood and the cytoplasm to remain constant at about a pH of | 7.4
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| is key in maintaining homeostasis because the membrane allows cells to regulate the materials that are entering or leaving. | cell membrane
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Created by:
Mr. Sneed
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