Transport And Trafficking

Question 1

What is the point of compartmentalisation in eukaryotic cells

Answer 1

Increase speed of reactions
Allows increased diversity in the way cells are organised

Question 2

Phospholipids are the most abundant membrane lipid. What are the two types

Answer 2

Can be phosphoglycerides (glycerol based) or sphingolipids (sphingosine based)

Question 3

How does cell know where to send protein

Answer 3

Amino acid sequence of proteins has signal sequence for where a protein belongs in a cell

Question 4

Three main ways to transport proteins

Answer 4

Gated transport
Transmembrane transport - between
Vesicular transport- within compartments

Question 5

What are motor proteins used for in transport

Answer 5

Transport vesicles and others around cells

Question 6

Along what does myosin transport things

Answer 6

Actin filaments

Question 7

What do motor proteins kinesin and dynein transport on

Answer 7

Microtubules

Question 8

Key difference between kinesin and dynein

Answer 8

Kinesin walks towards + end
Dynein walks towards - end

Question 9

Roles of myosin

Answer 9

Transport of vesicles and organelles
Muscle comtraction