The correct statement that does not accurately describe stem cells is D) the use of stem cells is without any objections since it can be used in therapies to help humans.
A) adult stems cells are multipotent and can differentiate into many types of cells, B) with more research, stem cells may be used to repair or replace damaged cells, and C) embryonic stem cells make up the inner cell mass of a blatocyst are all accurate.
Answer: It can only occur only after death and it usually affects hards tissues such as bones and shells.
The process in which
plants and animals remain preserved in the sedimentary rock in known as fossilization. With fossilization, the remnants
of an organism is preserved or evidence of existence in an ecosystem. However, the
condition of fossilization is that, it can only occur only after death and it usually
affects hards tissues such as bones and shells.
The place where large number of energy is required for cells like in liver , in heart , in legs etc
Answer & explanation:
Amylase is part of enzymes, a group of large peptide molecules (formed by amino acids) whose role is to catalyze reactions in order to facilitate the synthesis of other biological molecules.
Amylase is found mainly in saliva (in the form of salivary amylase, or ptialin), acting in the breakdown of starch and glycogen in foods, reducing them to smaller particles, facilitating their digestion and absorption.
The action of enzymes depends on certain specific conditions, called optimal conditions. In the case of <u>amylase</u>, it depends on an optimum pH of 7 (neutral) and an optimum temperature of approximately 37 ° C.
This enzyme can still act between 35 ° C and 40 ° C, but below 35 ° C it is inactivated, preventing its functions from being performed, and above 40 ° C it suffers denaturation, causing changes in its structures.
Thus, it is concluded that the <u>temperature</u> (under optimal conditions) is important for enzymes because it keeps their actions and structures in proper operation.
