Plants need Chloroplasts, during photosynthesis they need Chloroplasts to proceed with photosynthesis
Answer:
they are all a type of biome
Explanation:
Answer:C
Explanation: A,B and D are financially supported by a commercial entity that can benefit from stated views that promote their product (A, D) or make adverse claims against a competitor to their product (B).
Even if the information is factual, the perception of possible bias makes it unreliable without unbiased/disinterested validation.
For C, the National Heart Association, although not disinterested, is a reputable organisation whose concern is with public health, and in this case, the information can be taken as unbiased.
Answer:
Many second messenger systems activate kinases, enzymes that transfer a phosphate group from ATP to a protein. The phosphorylation of proteins sets off a series of intracellular events that lead to the ultimate cellular response.
Explanation:
For example, the second messenger cAMP activates the protein kinase A (PKA), which catalyzes the phosphorylation of other proteins.
The second messenger Ca²⁺ forms an active complex with a protein called calmodulin. This complex activates CaM kinases, that phosphorylate a group of target proteins, regulating its activities.
