Semester 1 Week 3 Flashcards

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1
Q

What are the two types of phospholipids?

A

The two types of phospholipids are:

Phosphoglycerides: glycerol, 2 fatty acids, phosphate, organic molecule

Phosphosphingolipids: sphingosine, 1 fatty acid, phosphate, organic molecule

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2
Q

What are all of the Polar amino acids?

A

Serine- Sexy
Asparagine - Ass
Threonine - Turtles
Cysteine - Climb
Glutamine - Great
Tyrosine - Trees

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3
Q

What are all of the electrically charged amino acids?

A

Glutamic acid - Gay
Aspartic acid - Albanians
Lysine - Love
Histidine - Harry’s
Arginine - Asshole

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4
Q

What are chaperones (chaperonins)?

A

Chaperones are roteins that assist and maintain proper folding of other proteins

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5
Q

What are different methods for enhancing visualisation of cellular structures in light microscopes?

A

1) Brightfield (stained and unstained) - light passed directly through specimen
2)Phase-contrast - enhances contrast by amplifying variations in density within specimen
3) Differential-interference-contrast - exaggerate differences in density, making image look 3D
4) Fluorescence - shows locations of specific molecules by tagging molecules with fluorescent dyes/antibodies
5) Confocal - lasers and special optics used for optical sectioning of fluorescently-stained specimen

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6
Q

What is the magnification and resolution of a light microscope?

A

The magnification of light microscopes is x1000 size of specimen and resolution is 0.2µm

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7
Q

What is the magnification and resolution of an electron microscope?

A

The magnification of an electron microscope is 250,000x size of actual specimen and resolution is 0.1nm (NANOmeters).

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8
Q

What is phagocytosis?

A

Phagocytosis is intracellular digestion done by lysosomes

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9
Q

What is Autophagy?

A

Autophagy is destruction of damaged organelles and recycling of cell’s organic material

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