Saliva
Saliva contains an enzyme called salivary amylase.
Salivary amylase is an enzyme that breaks down complex carbohydrates molecules into simple or smaller carbohydrate molecules called maltose. The enzyme acts on carbohydrates in the mouth, initiating the process of digestion.
Salivary amylase is made by the salivary glands in the mouth. Maltose is later converted to glucose in the small intestine by another type of amylase called pancreatic amylase.
Answer: D) By decreasing the activation energy of a reaction
A catalyst is a substance that speed up the rate of chemical reaction without affecting the product of the reaction. They only affect the rate of reaction not the yield of reaction.
Catalyst provide an alternative reaction pathway that has lower activation energy than that of uncatalysed reaction. It increases the frequency of collision and because of these greater collision which lowers the activation energy of the reaction.
Answer:
The correct answer is "The "host range" for a virus is determined by the presence or absence of particular components on the surface of a host cell that are required for the virus to attach".
Explanation:
The missing option of this question is the one that is correct, which is "The "host range" for a virus is determined by the presence or absence of particular components on the surface of a host cell that are required for the virus to attach". A virus is able to infect by recognizing particular components that are present in the surface of the host cell. If this components are absent in the cell, the virus is not able to infect it. Therefore, the "host range" is determined by the presence or absence of this particular components.
Answer:
presents longitude lines as parallel
Explanation:
I hope this helps you:)
Answer:
The fossils of sea creatures formed in layers of ancient ocean depths. Then they were pushed up when India crashed into Asia.
Explanation:
Assuming we' re speaking of the movement of Indian and Eurasian tectonic plates while forming the Himalayas.