Answer:
muscle cells
Explanation:
It is in the mitochondria that cellular respiration takes place. Therefore, the more mitochondria, the more ATP produced as a result of cellular respiration. More ATP = more energy. Muscle cells need more energy, so they contain more mitochondria.
Answer:
because the rocket fuel has chemical energy
Explanation:
Answer:
Both follow duplication of chromosomes. Both include breakdown of the nuclear membrane. Both require spindle fibers to move chromosomes around.
Explanation:
Answer:
binding regulatory subunits and inducing their release from the catalytic subunits
Explanation:
cAMP molecules diffuse into the cytoplasm where they bind to an allosteric site on a regulatory subunit of a cAMP-dependent protein kinase ( protein kinase A, PKA).
-In its inactive form, PKA is a heterotetramer comprised of two subunits namely, regulatory (R) and two catalytic (C) subunits.
-The regulatory subunits normally inhibit the catalytic activity of the enzyme. cAMP binding causes the dissociation of the regulatory subunits, thereby releasing the active catalytic subunits of PKA.
-cAMP stimulates glucose mobilization by activating a protein kinase that adds a phosphate group onto a specific serine residue of the glycogen phosphorylase polypeptide.