Tissue damage activates nociceptors or pain receptors in the skin. A signal is sent to the peripheral nerve to the spinal cord where neurotransmitters or chemical messengers are released. It activates other nerves to pass signal to the brain. The signals are relayed to the somatosensory cortex for sensation, frontal cortex for thinking and limbic system for emotional response.
Answer:
The cell cycle is controlled by many cell cycle control factors, namely cyclins, cyclin-dependent kinases (Cdks) and cyclin-dependent kinase inhibitors (CKIs). Cyclins and Cdks, which are positive regulators of the cell cycle, activate cell cycle factors that are essential for the start of the next cell cycle phase.
Explanation:
Listen to pronunciation. (sel-SY-kul REH-gyoo-LAY-shun) Any process that controls the series of events by which a cell goes through the cell cycle. During the cell cycle, a cell makes a copy of its DNA and other contents, and divides in two.
The second statement is correct. Once the enzyme binds to the specific substrate molecule, structural changes can occur in the enzyme's active site to accommodate the product which is the substrate in a transitional state until the reaction is complete to yield the final product.
When the substrate interacts with the enzyme, it undergoes a chemical reaction that allows the atoms to move relative to each other, and the bonds possibly lengthen or shorten which causes the most reactive groups to move closer to each other causing a shape change.
This shape change in the enzyme makes the substrate more amenable to alteration, as it holds the substrate in a transitional state, which helps speed up the reaction that the enzyme catalyzes.
Answer:
b.) because its the only thing he can really control and it stays the same through out the entire experment
Explanation:
