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Cellular Biology > Extracellular Matrix > Flashcards

Extracellular Matrix Flashcards

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1
Q

What do plant cell walls do

A

Composed of cellulose hemicellulose pectin and proteins
Provide structural support to cell and organism as a whole
Protect cell from mechanical damage and pathogens
Contain biochemical signals for cell

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2
Q

What are cell walls composed of

A

Microfibrils embedded in a polysaccharide matrix

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3
Q

Main function of cytosol

A

Protein synthesis

Many metabolic pathways

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4
Q

Nucleus

A

Contains genome
DNA
RNA synthesis
Ribosome assembly

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5
Q

Endoplasmic reticulum

A

Protein synthesis

Synthesis of lipids

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6
Q

Lysosomes

A

Suicide

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7
Q

Endosomes

A

Sorting and recycling

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8
Q

Mitchondria

A

ATP synthesis

Apoptosis

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9
Q

Chloroplasts

A

Photosynthesis

ATP synthesis

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10
Q

Perioxosomes

A

Oxidation of toxic molecules

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11
Q

What about outer mitochondrial membrane

A

Contains many enzymes with diverse metabolic functions

Contains porins

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12
Q

What do cristae do

A

Double layered folds increase membrane surface area

Contain machinery for for aerobic respiration and ATP formation

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13
Q

What about intermambrane space

A

High protein
Mitochondrial ribosomes
Mitochondrial DNA

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14
Q

What is apoptosis

A

Normal occurance where sequence of events lead to cell death

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15
Q

What is apoptosis characterized by

A

Shrinkage of cell
Blebbing of plasma membrane
Fragmentation of dna and nucleus
Eengulfmet by phagocytosis

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16
Q

what is realased during apopisis

A

Caspases and chtochrome c

17
Q

Which organelles are involved in the CES

A 
ER
Golgi complex
Lysosomes
Vacuoles
Endosomal transport vesicles
18
Q

What is GFP

A

Green fluorescent protein
Fused with protein and expressed in cells
Fluorces under microscope and visualized

19
Q

What purpose does the emc

A

Site for cell attachment
Physical support for cells
Contains regulatory factors
Separate/define tissues

Cellular Biology (7 decks)

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