Question

Infer whether or not enzymes needed for cellular activities need to be transferred to the cells by the blood stream. a. Enzymes needed for cellular activities does need to be transferred to the cells through the blood stream. Enzymes are made up mostly proteins, meaning the enzymes can be absorbed by the blood, and carried throughout the body to the cells. b. No, enzymes needed for cellular activities don't have to be transferred to the cells by the blood stream. Cells have the ability to synthesize their own enzymes as they need it. Those enzymes are synthesized in the cytoplasm by the free ribosomes and then used to perform cellular activities. c. Enzymes needed for cellular activities don't have to be transported in the blood stream. Considering the fact that the cells that are using these enzymes aren't inside the stomach. I would assume these would be transported using the blood stream. The diagram above is an example of negative or positive feedback? a. The loop is an example of positive feedback. Positive feedback loops are common in creating a stimulus which in this case would be the level of panic of the cattle. b. Positive feedback because it is an ongoing cycle and because the output enhances the original stimuli. The number of cattle running increases the panic of the cows and the number of cows running increases due to an increase in panic. c. This is a negative feedback because the number of cattle running reverses the process of the overall level of panic.

Answer 1

Answer: -

7.option "b"-no enzymes needed for cellular activities are made inside the cell.

*enzymes are proteins.

*enzymes are made from genes by transcription followed by translation.

*cells synthesize their own enzymes as and when required.

8.option "b"-positive feed back

*Panic and cattle both work in coordination .

*This positive effect save them from predators.