Macromolecules
What bond joins amino acids together to make a polypeptide?
Peptide bond
Microfilaments are polymers of what?
Actin
What is an isotope?
Same # protons, different # neutrons
what does active transport require?
An input of energy
What bond joins monosaccharides together to form polysaccharides?
Glycosidic linkage
What is the most common dietary fat?
Triacylglycerols
The nuclear lamina is the cytoskeletal elements that gives what to the nucleus?
Structure
What is electronegativity?
Drive for an atom to gain electrons to fill octet
What characteristics of solute and water concentrations are present in a hypotonic solution?
Lower solute
higher water
Can covalent bonds form between the same element, or different elements?
Both, C-H4, or O=O
What bond forms free fatty acids to a glycerol molecule?
Ester bonds
The nuclear envelope does what, and how many membranes does it have?
What is the atomic number of an atom?
Total count of protons in nucleus
How many sodium and potassium ions are pumped in and out of the cell?
2 K in, 3 Na out
What bond is the reason why water displays cohesive forces?
hydrogen bonds
How are monomers of a macromolecule joined together to make a polymer?
Dehydration synthesis
What is present in the matrix of the mitochondria?
DNA, ribosomes, enzymes
A base does what to the concentration of hydrogen ions?
Reduces concentration of H+
due to the sodium potassium pump or the proton pump, the charge on the inside of the cell, is respect to the outside is
More negative
What components make up a nucleoside?
Pentose sugar
Nitrogenous base
the lysosome is involved in what processes?
Apoptosis
autophagy
phagocytosis
What type of molecule would you expect to dissolve in water?
Ionic substances and polar substances (like dissolves like)
You put a plant cell in a hypertonic solution, what happens to the cell?
Water leaves the cell and it shrivels and dies