Disposition of Proteins

Question 1

Plasma membrane movement

Answer 1

Things can move laterally fairly freely

Question 2

Transport across plasma membrane

Answer 2

Simple diffusion
Facilitated transport
Gated channels
Active transport

Question 3

Vesicular transport

Answer 3

Endo and exocytosis

Question 4

Lysosomes

Answer 4

Contain lyases and digest biomolecules

Question 5

Mitochondria inner membrane

Answer 5

Highly impermeable…allows for buildup of protons for ATP generation

Question 6

Most of mitochondria proteins are from

Answer 6

Cytosol

Question 7

How are things moved out of mitochondria

Answer 7

Through outer membrane via receptor-mediated process

Question 8

Peroxisomes

Answer 8

Single bilayer molecule
Oxidation reactions using molecular oxygen
Must import proteins

Question 9

Nucleolus

Answer 9

Site of rRNA transcription and ribosome assembly

Question 10

Nuclear envelope outer layer continuous with

Answer 10

RER

Question 11

Nuclear pores allow

Answer 11

ribosomes and rRNA out and proteins in

Question 12

SER

Answer 12

Synthesis of lipids and enzymes involved in drug and toxic substance metabolism
Makes steroid hormones

Question 13

RER

Answer 13

Synthesis of proteins
Transports proteins to golgi
Modificiation - GPI anchors or N-linked glycosylation

Question 14

Golgi Complex

Answer 14

Distribution center for proteins ands lipids from ER to plasma membrane and vesicles
Modifies oligosaccharides attached to asparagines, adds o-linked oligosaccharides to serines and threonines, add nano-6-P to proteins to move to lysosomes

Question 15

Endosomes

Answer 15

Sorting centers for things that come from outside…send to golgi for use or destruction