Chapter 2 Cells Flashcards
G0-
G1/s-
G2/M-
Resting state
Checking for cell size, nutrients, growth factors, DNA damage
Checking for cell size and DNA replication
Role of Golgi apparatus
Protein from rough ER exported here which sorts through it and exports product outside of cell or may make it into lysosomes
Smooth endoplasmic reticulum role
Fat metabolism that isn’t for ATP production. Cholesterol and steroid hormones, drug metabolism.
Can still make ____ without oxygen but results in ____ production and drop in ____
Co2, H+, pH
How ligand is brought into cell
Receptor mediated endocytosis. Ligand attaches to surface receptor. How cholesterol passes through and triglyceride is processed.
Cilia use what as a motor
Microvilli have what that are what and increase surface area
Microtubules
Microfilaments, actin
In cell what is used to:
Be water tight
Hold cells together and prevents gaps
Hold things together but allow passage between
Tight junction or zonula occludens
Belt desmosome or zonula adherens
Gap junction
Molecules that easily go through lipid belayer 3
Molecules that go through slowly 3, need transporter to go through quickly
Which two kinds of materials need a channel
Oxygen, carbon dioxide, n2 (hydrophobic)
Water, urea, glycerol (small uncharged particles)
Large uncharged molecules (glucose and sucrose) and ions
Sodium concentration:
Plasma
ECF
ICF
140
140
12
Potassium concentration
Plasma
ECF
ICF
4.3
4.3
120
Calcium concentration in ICF
.0001 way smaller than plasma/ECF, moves into cell
Chloride concentration
Plasma
ECF
ICF
105
105
5
Hco3- concentration
Plasma
ECF
24
24
Protein concentration
Plasma
ECF
ICF
1
About 0
High
Difference of one is crucial
Total osmolarity
Plasma
ECF
ICF
291
290
290