Chapter 2 Flashcards

Cells and Systems

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1
Q

What do microscopes allow us to see?

A

CELLS!

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2
Q

Compound means

A

two or more lenses which allow us to see very small things

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3
Q

Formula for Magnification

A

Magnification(m) = Objective(o) * Eyepiece(e)

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4
Q

Field of view is measured as…

A

the diameter of the circle you see

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5
Q

Cells are the basic unit of every system: True or False

A

TRUE!

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6
Q

Describe tissue

A

the collection of cells that perform the same job

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7
Q

Organs are

A

structures that perform particular functions

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8
Q

Tell me about systems

A

its a composition of multiple organs to fulfill distinct characteristics

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9
Q

What do organelles do?

A

They serve function to the cell.

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10
Q

What are organelles?

A

They are membrane bound structure inside the cell.

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11
Q

Function of cell membrane is to

A

surround and protect the contents of the cell

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12
Q

Cytoplasm can be described as

A

a water-like fluid that fills the cell while distributing material throughout

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13
Q

What does the nucleus do?

A

It controls the cell’s activities

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14
Q

Vacuoles are storage space for…

A

waste and other substances

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15
Q

The power plan of the cell is known as

A

Mitochondria

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16
Q

Which part of the cell breaks down and digests materials?

A

The lysosome

17
Q

Golgi Apparatus does what?

A

It tells molecules where they need to be shipped.

18
Q

Endoplasmic Reticulum

A

has a function of gathering simple materials and packaging them in a more complexed way

19
Q

Tell me what the cell wall is responsible for.

A

Providing support for the cell.

20
Q

Which is thicker, cell membrane or cell wall?

A

The cell wall.

21
Q

Photosynthesis occurs in which organelle

A

Chloroplasts

22
Q

Which chemical is found in chloroplasts?

A

Chlorophyll!

23
Q

Name 3 unicellar organisms.

A

Ameoba, Bacteria, Paramecium

24
Q

Multicellar organisms have more than two cells
True or False

A

TRUE

25
Q

A selectively permeable membrane…

A

only allows SOME materials to pass through it

26
Q

Tell me what diffusion is

A

It’s the movement of particles from high concentration to low concentration.

27
Q

Describe Osmosis

A

Diffusion through water, except it requires a semipermeable mebrane.

28
Q

What does it mean to reach equillibrium?

A

When all the particles within a liquid are evenly dispersed.

29
Q

Do red blood cells have a nucleus?

A

No they do not.

30
Q

STEM cells are what?

A

The first cell of a multicellular organism.

31
Q

What are the 4 different types of tissues?

A

Connective, Epithal, Nervous, Muscle

32
Q
A