The sarcoplasmic reticulum calcium transport ATPase (SERCA) D351A mutant has the P domain Asp^351 residue replaced by alanine.

How would this affect the Ca^2+ ATPase? Choose two answers.

SERCA D351A cannot have a stabilized E2 conformation, and is mostly present in one of the E1 (high Ca^2+ affinity) conformations.

SERCA D351A does not bind ATP.

SERCA D351A does not exist in the E1 conformation.

SERCA D351A is not able to be phosphorylated.

SERCA D351A loses the ability to bind Ca^2+.

the answer is:

carbon dioxide

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )