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Flashcards in Disposition of Proteins Deck (15)
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1

Plasma membrane movement

Things can move laterally fairly freely

2

Transport across plasma membrane

Simple diffusion
Facilitated transport
Gated channels
Active transport

3

Vesicular transport

Endo and exocytosis

4

Lysosomes

Contain lyases and digest biomolecules

5

Mitochondria inner membrane

Highly impermeable...allows for buildup of protons for ATP generation

6

Most of mitochondria proteins are from

Cytosol

7

How are things moved out of mitochondria

Through outer membrane via receptor-mediated process

8

Peroxisomes

Single bilayer molecule
Oxidation reactions using molecular oxygen
Must import proteins

9

Nucleolus

Site of rRNA transcription and ribosome assembly

10

Nuclear envelope outer layer continuous with

RER

11

Nuclear pores allow

ribosomes and rRNA out and proteins in

12

SER

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

13

RER

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

14

Golgi Complex

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

15

Endosomes

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