Block 2 Lecture 5: Into to Cells

Question 1

what are the three integral membrane proteins

Answer 1

transmembrane, peripheral, glycoproteins

Question 2

outline the components and function of the phospholipid bilayer

Answer 2

hydrophobic, non-polar heads and hydrophilic, polar tails that mediate the movement of hydrophilic substances

Question 3

what is the function and location of the nuclear lamina

Answer 3

located lining the nuclear envelope, made up of fibrous proteins that offer support for the nucleus

Question 4

where are rRNA and ribosomal subunits produced

Answer 4

the nucleolus

Question 5

what are the functions of the smooth ER

Answer 5

production of lipids, houses tissue specific proteins, stores enzymes in the liver

Question 6

what is the entry face of the Golgi that receives proteins from the RER

Answer 6

Cis

Question 7

where in the Golgi is the protein packaged into vesicles

Answer 7

Trans

Question 8

the digestion of cell components by lysosomes is called ______, whereas the digestion of entire cells is called ____

Answer 8

components: autophagy

whole cell: autolysis

Question 9

which cytoskeleton is composed of two intertwined actin filaments

Answer 9

microfilaments

Question 10

which cytoskeleton is the largest and which is the smallest

Answer 10

smallest microfilaments, largest microtubules

Question 11

which cytoskeleton is the most permanent

Answer 11

intermediate filaments

Question 12

which cytoskeleton is responsible for movement of organelles

Answer 12

microtubules

Question 13

which cytoskeleton is composed of alpha and beta tubulin dimers

Answer 13

microtubules