chaoter 3 Flashcards

1
Q

Integral proteins

A

IN THe membrane

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2
Q

Peripheral protein

A

Partly in the membrane

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3
Q

Passive transport

A

Utilized kinetic energy MOLECULE MOTION ENERGY

NO ATP

Molecules move from high concentration to low concentration until equilibrium

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4
Q

Concentration gradient

A

Difference between high and low concentration

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5
Q

Simple Diffusion

A

High to low concentration

  1. Small
  2. Lipid soluble
  3. Non-polar
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6
Q

Facilitated diffusion

A

Certain molecules combine with a membrane carrier to become souleuable in the phospholipid portion of the memebrane

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7
Q

Osmosis

A

Movement of water high to low

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8
Q

HYPERTONIC

A

Water leaves cell

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9
Q

ISOTONIC

A

Water goes through cell casually

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10
Q

HYPOTONIC

A

Water in the cell

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11
Q

Filtration

A

Movement by gravity or mechanical measures

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12
Q

ACTIVE PROCESSES

A

Uses ATP

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13
Q

Endocytosis

A

Enclosing something and bringing it into the cell

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14
Q

Phagocytosis

A

Food

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15
Q

Pinocytosis

A

Drinking

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16
Q

Receptor-mediated endocytosis

A

Selective uptake of large molecules

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17
Q

Tonicity

A

The effect that water pressure has on a cell

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18
Q

Lysosomes

A

Site of intracellular digestion
SUICIDE SACS!
Contain digestive enzymes
Formed in the golgi

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19
Q

Mitochondria

A

Has some folds named cristae oooo

POWERHOUSE OF THE CELL ATP MAKER 1000

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20
Q

Microvilli

A

Increases membrane surface area

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21
Q

Golgi apparatus

A

Cisternae PROCESS SORT DELIVER PROTEIN

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22
Q

Functions of cells

A
REPRODUCTION 
CONTRACTILITY (muscle cells)
CONDUCTIVITY (nerves)
METABOLISM (chem reaction)
IRRITABILITY (sensory nerves)
23
Q

CENTRIOLES

A

Two rod shaped bodies near the nucleus

SPIN the mitotic spindles

24
Q

Centrosome

A

AREA OF THE CENTRIOLE

25
ER
Provides mechanical support exchanges material with th cytoplasm and transports material within the cell
26
SMOOTH ER
Lipid/steroid synthesis
27
Rough er
Protein warehouse
28
CELL BURSTS
LYSIS
29
Cell shrink
Crenate
30
Ribosomes
rRNA holder | Free or attached to rough ER
31
Cillia
Moves substances across the surface | RESPIRATORY AND REPRODUCTIVE TRACT
32
Microtubules
Tubes that provide support and shape for the fell Assist in movement
33
Intermediate filaments
Provide structural reinforcement in some cells and assist in contraction in others.
34
Inclusions
Rando chemicals in the cytoplasm nutrients and waste and shit
35
Nucleus
Most comped structure of the cell involved in the regulation of cellular activities and contains genetic information.
36
Nucleolus
rRNA maker
37
Chromatin
stores DNA | Weavy threads in nucleoplasm
38
Nuclear membrane
Surrounds nucleus and separates it from the cell
39
process of making rRNA
Transcription
40
why is transcription necessary?
dna can’t leave the nucleus
41
Sodium potassium pump!
Sends out 3 sodium | Brings in 2 potassium
42
How does transcription work.
1. Dna opens up | 2. Base pairs are made for RNA
43
3 types of RNA
1. mRNA: takes code from nucleus to ribosome 2. rRNA: makes ribosomes 3. tRNA: brings amino acids from cytoplasm to ribosome.
44
Process that makes proteins from the code carried in DNA?
Translation
45
Where does translation take place?
Ribosomes.
46
Translation process
RNA to protein in the ribosome
47
What must happen for a cell to divide
Volume too big for surface area
48
Steps of mitosis
P: chromosomes and spindle fibers appear! the nuclear membrane and nucleoli disappear. M: chromosomes align in the middle A: sister chromatids pulled apart T: chromosomes unwind a new nucleus forms
49
Interphase
G1:cell just chilling growing S: DNA copies G2: grows again to divide
50
How can DNA can act as a template
Can only fit together one way! A ➡️ T G➡️C (rna has U not T) THE COMPLEMENTARY NATURE OF THE BASE PAIRS
51
Structure of the chromosome
2 chromatids and a centromere
52
Chromosomes in a human cell
46!
53
Codon
MRNA
54
Anticodon
TRNA