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Biology 1 > Cell Organelles > Flashcards

Cell Organelles Flashcards

0
Q

What does the cell membrane do

A

Allows substances to enter and exit the cell

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1
Q

What is the plasma (cell) membrane

A

The selectively permeable barrier on the outside of the cell

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2
Q

How does the cell membrane select which substances can enter and exit the cell

A

The substances are selected based on their size and polarity

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3
Q

What is the Cato plasm

A

It the the fluid on the inside of the cell membrane that all of the cell contents are suspended in

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4
Q

What is the nucleus

A

It is the control center of the cell

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5
Q

What does the nucleus do

A

It houses and protects the DNA in the cell

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6
Q

Where is the nucleolus

A

In the nucleus

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7
Q

What does the nucleolus do

A

It makes ribosomes

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8
Q

What is the nuclear envelope

A

The barrier around the nucleus

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9
Q

What does the nuclear envelope do

A

Protects the nucleus and has small holes that allow substances to enter and leave the nucleus

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10
Q

What are chromosomes

A

Structures in the nucleus of a dividing cell

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11
Q

What are chromosomes made of

A

DNA & protein

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12
Q

What do ribosomes do

A

Make protein

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13
Q

What is the mitochondria

A

The power house of the cell

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14
Q

What does the Mitochondria do

A

It is the cite of cell energy (ATP) production and it has its own DNA

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15
Q

What is the ER

A

Tubes in the cell that transport cellular substances

16
Q

What is the smooth ER

A

ER without ribosomes

17
Q

What does the smooth ER do

A

It builds lipids and detoxifies drugs and poisons in the liver

18
Q

What kind of lipids does the smooth ER make

A

Testosterone & Estrogen

19
Q

Where does the smooth ER build lipids

A

In the ovaries and testes

20
Q

What is the rough ER

A

ER studded with ribosomes

21
Q

What does the rough ER do

A

It makes parks of the cell membrane & proteins

22
Q

Where is the rough ER

A

it is found in cells that produce posts of enzymes and proteins (example: pancreas)

23
Q

What is the Golgi Apparatus

A

Receives newly made proteins and lipids and exports them out of the cell after modifying them

24
Q

What are lysosomes

A

They contain digestive enzymes that break down large molecules (fats, proteins, carbs, DNA) they also break down sick cells

25
Q

What is the cytoskeleton

A

A network of thin tubes and filaments

26
Q

What does the cytoskeleton do

A

It provides network support and transports substances along the tubes and filaments

27
Q

What are cilia and flagella

A

Hair like structures that assist in movement

28
Q

What are cilia and flagella made of

A

Protein.

29
Q

What are centrioles

A

Short cylinders/ tubes that assist in cellular division

30
Q

What is a cell wall

A

A protective barrier in plant cells that give plants shape

31
Q

What are cell walls made of

A

Cellulose

32
Q

What is a large central vacuole

A

It stores fluid in plant cells

33
Q

What is a prokaryotic cell

A

Bacteria cells

34
Q

What does a prokaryotic cell have/ not have

A

Has: ribosomes, enzymes, cell wall, cytoplasm, cell membrane

Doesn’t have: a nucleus or membrane bound organelles

35
Q

Eukaryotic cells

A

All cells except bacteria, has a nucleus and membrane bound organelles

36
Q

What is the cell theory

A

1) all cells come from other cells
2) cells are the basic unit of life
3) all organisms are composed of cells

37
Q

Plant cells are what type of cell

A

Eukaryotic cells

38
Q

What do plant cells have/ don’t have

A

Have: chloroplasts, cell walls, large central vacuoles & mitochondria

Don’t have: centrolies & lysosomes

Biology 1 (14 decks)

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