In order to form a polymer from monomers, monomers must:
undergo trypsin reactions
undergo dehydration reactions
undergo amylase reactions
Which of the following cellular functions is associated with the smooth endoplasmic reticulum (SER)?
houses the DNA
produces hydrogen peroxide as byproduct
contains hydrolytic (digestive) enzymes
stores Ca 2+
energy powerhouse of cell (makes ATP)
Which of the following statements is false regarding protein structure?
one type of secondary structure found in proteins is called an alpha helix
beta sheets are an example of tertiary structure
tertiary structure may be supported with hydrogen bonding, ionic bonding , hydrophobic interactions and covalent bonding amino acids in the polypeptide
Which of the following membrane proteins are involved in active transport across the plasma membrane?
a chloride channel
sodium/potassium ATPase (Na+/K+pump)
What will happen to a red blood cell that is placed into a hypertonic solution?
nothing, it will remain unchanged, the water will flow in an dout of the cell at the same rate
it will lyse (burst) because too much water will enter the cell from the surrounding fluid
it will shrivel because too much water will leave the cell into the surrounding fluid
The molecule DNA is important to biological systems because
it can be replicated
it forms a complex, double-helical structure.
nucleotides form genes.