chem
What is atomic number? Where is it found?
Number of protons + neutrons
Found at the bottom of element
T or F
A polysaccharide is a chain of simple sugars joined by peptide bonds
False
peptide bonds are held by amino acids
difference between cytosol and cytoplasm
cytosol is just the gel-like fluid, cytoplasm is the cytosol + organelles
the force that allows filtration of blood is
hydrostatic pressure
proto oncogenes do what?
help cells grow and divide normally
what is happening in spheres of hydration?
The polarity of water attracts ions, and they surround the ions and stop interaction.
allows to dissolve
T or F
Saturated fats are easier to break than unsaturated
False
unsaturated fats have "bends" in molecular shape that make it easier to break
what parts of the phospholipid is hydrophilic/hydrophobic
hydrophilic head
hydrophobic tail
what is the channel used for osmosis called?
aquaporin
what kind of bond is held together by base pairs?
hydrogen bonds
if a substance is unable to completely dissolve in water, what is it?
Hydrophobic
What happens if a substrate is unable to bind to an enzyme?
unable to form product, activation energy stays the same
T or F
Everyone's glycocalyx is the same
False, all unique
important for immune system detection
T or F
Solutes are moving across membrane in osmosis
False
DNA helicase does what?
breaks H bonds and unzips the DNA strand
What reaction results in water being a byproduct?
dehydration synthesis (exergonic or endergonic?)
sickle cell anemia is a result of what kind of protein folding error
primary
who is the powerhouse of the cell?
mitochondria
What is transcytosis?
what is happening in interphase?
growing and preparing for mitosis
G1, G2, S phases
if pH is low, is H+ concentration high or low?
high
All proteins have a quaternary structure.
T or F
some have tertiary as a functional structure
centrosomes give rise to what
microtubules/cytoskeleton
difference between microvilli and cilia function
microvilli- increase surface area
cilia- move substances
what does it mean when cancer is metastatic?
It is travelling throughout an organism