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Cell Structure Flashcards

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Cell Structure Flashcards

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Presentation Transcript
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1. All living things are made of one or more cells

2. Cells are the basic unit of every living organism

3. Cells only come from pre-existing cells

This is the…

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They don’t grow

They don’t require energy

They don’t maintain homeostasis

They don’t reproduce…

And they’re not made of cells!

slide8

Swine Flu Virus

The protein coat surrounding the DNA or RNA is called a…

slide10

Which stage of Viral infection produces

dying cells and millions of viruses?

slide12

What do

retroviruses like

AIDS have that

regular viruses

do not?

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The movement of substances in,

into, and out of the cell

Nerve cell

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Cell Transport

Nerve cell

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Maintaining a constant

internal environment

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Which organelle

Maintains homeostasis?

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The two ways that cells

maintain homeostasis:

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Passive Transport

Active Transport)

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The main component of the plasma

membrane - polar heads attract

water, fatty tails repel water -

making a “sandwich”

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Passive Transport #1

the movement of particles

from an area of high

concentration to low

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Passive Transport #2

Diffusion made easier by the use of proteins (transport proteins)

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Passive Transport #3

The movement of water across the

membrane from high water

concentration to low

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Active Transport #1

When

cells “eat”

substances by

surrounding and

engulfing them

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Active transport #2

Active Transport

Releasing large particles through

openings in the plasma membrane -

the opposite of endocytosis

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