Answer:
consumer
Explanation:
it is not an autotroph, therefore it has to consume
Answer:
catabolite activator protein (CAP)
Explanation:
Catabolite activator protein (CAP) is a homodimeric transcriptional activator required for transcription initiation of catabolite-sensitive genes in <em>Escherichia coli</em>. CAP contains a ligand-binding domain at its N-terminus and a DNA-binding domain at its C-terminus. CAP activates transcription by binding at target DNA sites on promoter sequences, thereby enhancing the ability of the RNA polymerase to bind and initiate transcription. CAP binds cyclic AMP (cAMP) to increase CAP’s affinity to DNA and thus activates the transcription of genes for catabolism, such as the lactose (lac) operon genes (the lac operon is a set of genes that encode for enzymes taking part in lactose metabolism).
What happens at the level of the muscle proteins during muscle contraction is that the myosin-binding sites are exposed, and due to insufficient ATP present, myosin binds to actin to begin cross-bridge cycling.
<h3>What is muscle contraction?</h3>
Muscle contraction is defined as the activation of tension-generating sites within muscle cells.
During muscle contraction, the myosin-binding sites are exposed, and due to insufficient ATP present, myosin binds to actin to begin cross-bridge cycling.
Also, as the muscle contracts, thick filaments shortens and thin filaments slides.
Thus, what happens at the level of the muscle proteins during muscle contraction is that the myosin-binding sites are exposed, and due to insufficient ATP present, myosin binds to actin to begin cross-bridge cycling.
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Answer:
It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment
Explanation:
Lac operon is also referred to as Lactose operon.This operon helps in the transport and metabolism of lactose of many enteric bacteria.
It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment
Due to the fact that it would be a total waste to produce enzymes when no lactose is available or if another preferable energy source such as glucose were available. The lac operon uses a two-part control mechanism to ensure that the cell uses energy producing the enzymes encoded by the lac operon only when necessary to avoid wastage and abnormalities.
Answer:
Myenteric plexus is correct answer.