Hi

which of these proteins is most likely to be involved in the second step of secondary active transport

Symporter

how do intracellular signaling molecules, defer chemically to extracellular signals?

Small nonpolar (or polar : H2O) molecules that can diffuse across the membrane

select the correct end into the statement signal peptide sequences are _____

Remove removed from the mature polypeptide

in eukaryotes ribosomes associate with endoplasmic reticulum membranes when

A signal sequence on the protein being synthesized causes translation to stop in the ribosome to attached to the ER membrane

when a G protein is activated in a signal transduction pathway,

GDP is released from the G-protein, And GDP occupies the nucleotide binding site

what is a possible response of a cell that signals to cytoskeletal effector protein?

A change in cell shape

E

STOP CODONS, dna and rna

UAA, UGA, UAG

TAA, TGA, TAG

which of the following statements is true

a. DNA is completely replicated, but only partially transcribed

b. DNA is partially replicated but completely transcribed.

c. RNA is completely replicated but only partially translated do

d. DNA is completely replicated and completely translated.

e. DNA is partially replicated or completely translated.

a. DNA is completely replicated, but only partially transcribed

in eukaryotic cells, translation occurs in the ____ transcription occurs _____

a. nucleus; in the nucleus

b. nucleus; in the cytoplasm

c. cytoplasm; in the nucleus

d. nucleus; outside of the cell

e. cytoplasm; outside of the cell

b. nucleus; in the cytoplasm

which of the following is not required for transcription

A DNA template

B a primer

C ribonucleotide triphosphate

D RNA polymerase

E all of them are required for transcription

B a primer

inhibitors

regulate enzymes

exergonic and

catabolism

endergonic and

anabolism

reactants are called substates. they bind to the

active site of the enzyme

what mechanisms do enzymes use

orient substrates, induce strain in substrate

different types of reversible inhibitors

non competitive (bind to enzyme at different site) and competitive

allosteric regulation

effector binds to enzyme at a different site, changing its shape