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Science > Cells > Flashcards

Cells Flashcards

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Biology 101 flashcards
1
Q

3 cell theory

A

All things are made of cells
Cells are a basic unit of life
All cells come from other cells

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2
Q

Prokaryotic

A

No nucleus
No membrane bound organelles
Binary fission
Unicellular
Cell wall peptidogylcagan
Bacteria

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3
Q

Eukaryotic

A

Nucleus
Do have membrane bound organelles
Mitosis
Uni or multicellular
Cells walls-only fungi plants made chitin or cellulose
Animal-plants-fungi-protists

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4
Q

All cells have?

A

Genetic material
Cytoplasm
Cell membrane
(ribosomes)

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5
Q

Organelles

A

Specialized structures within the cell that work together to help the cell function

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6
Q

Cell(plasma) membrane

A

Surrounds the outside of all cells
Made of two layers(phospholipid bilayer)
JOB-controls what goes in and out of the cell critical information for signaling and information help move around freely

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7
Q

Cytoskeleton

A

Threadlike fibers
Made of proteins
JOB
Gives the cell shape
Can also move organelles around
Provides structural support for animal

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8
Q

Cytoplasm

A

Jelly-like substance
Made up of water
JOB
Holds everything in place
Provides a solution for chemical reactions

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9
Q

Nucleus

A

Contains genetic material
Pores control what comes in and out
JOB
protects DNA that controls the activities of the cell

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10
Q

When DNA appears spread out

A

Chromatin

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11
Q

When DNA condenses forms

A

Chromosomes

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12
Q

Nucleos

A

Inside of nucleus
JOB
Makes rRNA which makes up ribosomes

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13
Q

Ribosomes

A

Made of protein and rRNA
Located on rough ER and floating cytoplasm
JOB
Process of making process called translation

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14
Q

Ribosomes on rough ER make proteins to?

A

Export out of cell

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15
Q

Ribosomes floating in cytoplasm make proteins to

A

Use within the cell

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16
Q

Rough endoplasmic reticulum

A

Has ribosomes on surface
Hugs the nucleus
JOB
makes proteins to export the cell
Packages them for secretion

17
Q

Smooth endoplasmic reticulum

A

No ribosomes on surface
Attached to rough ER
JOB
makes lipids(membranes)
Stores calcium

18
Q

Golgi apparatus

A

Folded membrane
JOB
gets vesicles of proteins from ER
Process and sorts and ships proteins where needed

19
Q

Vesicles

A

Mini carts to transport proteins around cell

20
Q

Lysomes

A

AMINAL CELLS ONLY
Contains enzymes
JOB
Breaks down dead stuff
Can do apoptosis(programmed cell death)

21
Q

Vacuoles

A

Eukaryotic
Small and numerous in animal cells
One large central one in plant cells
JOB
Storage(water nutrients)

Science (18 decks)

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