Chapter 2 Cells. Flashcards


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created 10 years ago by 20mmolander
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Cell Structure,View Cells,viruses
updated 10 years ago by 20mmolander
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Cell membrane

Protective outer covering of all cells that regulates the interaction between the cell and environment.

2

Cell

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Smallest unit of an organism that can carry on life functions.

3

Cell theory

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States the all organisms are made of one or more cells, the cell is the basic unit of life,and all cells come from other cells.

4

Cell wall

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Rigid structure that encloses, supports, and protects the cells of plants, algae, fungi, and most bacteria.

5

Chloroplast

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Green, chlorophyll-containing, plant-cell organelle that uses light energy to produce sugar from carbon dioxid and water.

6

Cytoplasm

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Constantly moving gel-like mixture inside the cell membrane the constantly heredity material and is the location of most of a cell's life processes.

7

Endoplasmic reticulum

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Cytoplasmic organelle that moves materials around I
in a cell and is made up of a complex series of folded membranes;can be rough (with attached ribosome) or smooth (without attached ribosomes).

8

Golgi body

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Organelles that package cellular materials and transport them within the cell or out of the cell.

9

Host cell

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Living cell in which a virus can actively multiply or in which a virus can hide until activated by environmental stimuli.

10

Mitochondrion

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Cell organelle that breaks down food and releases energy.

11

Nucleus

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Organelles that controls all the activities of a cell and contains hereditary materials made of proteins and DNA.

12

Organ

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Structure, such as the heart, made up of different types of tissues that all work together.

13

Organelle

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Structure in the cytoplasm of a eukaryotic cell that can act as a storage site, process energy, move materials, or manufacture substances.

14

Ribosome

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Small cytoplasmic structure on which cells make their own proteins.

15

Tissue

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A group of similar cells that work together to do one job.

16

Virus

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A stand of hereditary material surrounded by a protein coating.