Chapter 7 Flashcards

1
Q

When were cells really understood?

A

When the microscope was invented.

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2
Q

Where did cells get their name?

A

Called cells because they look like monk rooms.

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3
Q

Cell

A

The basic unit of life.

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4
Q

Cell Theory

A

All living things are composed of cells.
Cells are the basic unit of structure and function.
New cells are produced from existing cells.

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5
Q

What has helped study the cell?

A

New technologies.

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6
Q

TEM

A

It can look at cell structures and large proteins.

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7
Q

SEM

A

It can give 3D images.

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8
Q

Scanning Probe

A

Scans the surface of a specimen.

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9
Q

Prokaryote

A

The cell does not contain a nucleus.
Smaller and simple.
Mostly Bacteria.

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10
Q

Eukaryote

A

Cells that have a nucleus.

Usually larger and more complex.

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11
Q

What is eukaryote like?

A

A factory.

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12
Q

Organelles

A

“Little Organisms”

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13
Q

Nucleus

A

Control Center

Contains DNA.

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14
Q

Nuclear Envelope

A

Surrounds the nucleus and only lets certain material in.

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15
Q

Chromatin

A

Lunchroom

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16
Q

Chromosomes

A

Seating Chart

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17
Q

Nucleolus

A

A small, dense region full of ribosomes to make proteins.

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18
Q

Ribosomes

A

“Factory” for making proteins.

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19
Q

ER

A

Packages lipids, proteins, and other materials.

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20
Q

Rough ER

A

Contains ribosomes.

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21
Q

Smooth ER

A

It mostly contains enzymes.

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22
Q

Enzyme

A

Proteins that speed up a chemical reaction.

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23
Q

Golgi Apparatus

A

The function is to modify, sort, and package proteins and other materials for storage or secretion.

24
Q

Lysosomes

A

Clean up and digestion crew.

25
Q

Vacuoles

A

Sack-like structures for storage.

26
Q

Mitochondria

A
The powerhouse of the cell. 
Produces ATP (energy molecule).
27
Q

Chloroplast

A

In-plant cells.
Capture sunlight and convert it into chemical energy through the process of photosynthesis.
It contains a green pigment called chlorophyll.
Contain their own DNA.

28
Q

Cytoplasm

A

Gives shape and internal organization.

29
Q

Microfilaments

A

The framework of a cell.

30
Q

Microtubials

A

Maintain cell shape and movement.

31
Q

Cilla

A

Small, more abundant.

32
Q

Flagella

A

Longer, less abundant.

33
Q

Cell Membrane

A

Every cell contains it.

34
Q

Cell Wall

A

The main function is support and protection.

35
Q

What kind of environment does every cell live in?

A

Liquid

36
Q

Concentration

A

Mass of solute in a given volume of solution.

37
Q

Equilibrium

A

The concentration of solute is the same throughout.

38
Q

Passive Transport

A

Moving without using energy.

39
Q

Diffusion

A

Movement of high to low concentration without using energy.

40
Q

Osmosis

A

Diffusion of water.

41
Q

Isotonic

A

Same on both sides of the cell.

42
Q

Hypertonic

A

High concentration in the cell, causes water to leave the cell.

43
Q

Hypotonic

A

Lower concentration in the cell, causes water to enter the cell.

44
Q

What does osmotic pressure cause?

A

The movement of water and other materials.

45
Q

Facilitated Diffusion

A

Helping material from high to low concentration.

46
Q

Active Transport

A

Moving material from high to low concentration using energy.

47
Q

Endocytosis

A

Taking material into a cell.

48
Q

Phagocytosis

A

“Cell Eating”

49
Q

Pinocytosis

A

“Cell Drinking”

50
Q

Exocytosis

A

Taking material out of a cell.

51
Q

Unicellular

A

Single-cell.

52
Q

Multicellular

A

Multiple cells.

53
Q

Cell Specialization

A

Cells develop in different ways to perform different tasks.

54
Q

Red Blood Cells (RBC)

A

Transport oxygen.

55
Q

Levels of Organization in a Multicellular Organism

A

Cells: Basic unit of life.
Tissues: Group of cells that have a specific function.
Organs: Group of tissues that have a certain job.
Organ System: Group of organs that have a specific function.
Organism: Living thing.