Cell Biology Flashcards Preview

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Flashcards in Cell Biology Deck (31)
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1
Q

DNA storage and copied here

A

Nucleus

2
Q

Compartmentalize functions

A

Organelles

3
Q

ICF and organelles

A

Cytoplasm

4
Q

ICF only

A

Cytosol

5
Q

Selective Barrier “gatekeeper of the cell”

A

Plasma membrane

6
Q

Movement of materials between cells (not membrane)

A

Filtration

7
Q

Movement of particles from high concentration to low concentration

A

Diffusion

8
Q

Water pressure when pressure inside is greater than pressure outside. Water flows out = “pushing pressure”
Example: capillaries in kidneys

A

Hydrostatic pressure

9
Q
  • net flow of water across a membrane
  • high to low
  • low solute to high
  • water moves to dilute solute
A

Osmosis

10
Q

Total solute concentration (how much stuff) is dissolved in water

A

Osmolarity

11
Q

Proportional to solute concentration = pulling pressure

A

Osmotic pressure

12
Q

Pressure needed to stop osmosis

A

Osmotic pressure

13
Q
  • needs carrier

- requires energy (ATP) because movement is against “up” concentration gradient

A

Active transport

14
Q

Requires ATP and membrane proteins to make vesicles

A

Endo/exo

15
Q

control center

A

Nucleus

16
Q

Production and processing

A

ER

17
Q

Make ribosomes

DNA -> rRNA -> ribosomes

A

Nucleolus

18
Q

Has ribosomes that synthesize proteins; produces plasma membrane

A

Rough ER

19
Q
  • no ribosomes
  • synthesize steroids (ovaries and testies)
  • Stores Ca2+ (in muscles)
  • Detoxifies alcohol/drugs (in liver)
A

Smooth ER

20
Q
  • protein factories
  • made of rRNA and protein
  • translate mRNA into protein
  • exist free in cytoplasm and on rough ER
A

Ribosomes

21
Q
  • sorting and packaging
  • receives protein from ER
  • sorts, add CH2O
  • package into vesicles
A

Golgi Complex

22
Q
  • recycling centers
  • contain enzymes that digest old/foreign materials
  • “cell suicide” (apoptosis)
A

Lysosomes

23
Q
  • powerhouse of the cell
  • synthesis ATP
  • has own DNA and RNA
A

Mitochondria

24
Q
  • cell division

- made up of microtubules arranged in set pattern

A

Centrioles

25
Q

Infrastructure and transport

A

Cytoskeleton

26
Q

In the cytoskeleton….

-structural support

A

Intermediate filaments

27
Q

In the cytoskeleton…

  • intercellular transport
  • hold organelles in place
A

Microtubule

28
Q

In the cytoskeleton…

-cell movement

A

Microfilament

29
Q

External movement

A

Cilia/Flagella

30
Q

Hairlike

-ear/eye, respiration and reproduction tracks

A

Cilia

31
Q

Whiplike tail of sperm

A

Flagella