Answer:
There are two main types of stem cells: embryonic stem cells and adult stem cells.Stem cells provide new cells for the body as it grows, and replace specialised cells that are damaged or lost. They can divide over and over again to produce new cells.
The answer is D. energy needed to break chemical bonds
Answer:
a. add more of the enzyme.
Explanation:
Enzymes speed up the rate of reaction by lowering the activation energy for the reaction. They are not used themselves in the reaction. They are specific to substrate molecule. Substrate molecule binds to enzyme's active site and they undergo the reaction to form the product and release back the enzyme.
Rate of reaction depends on both substrate and enzyme concentration. Maximum rate of reaction is reached when all the active sites of enzyme molecules have been occupied by the substrate molecules which means that they are saturated. If more substrate is added at this point it wont have any effect on rate of reaction since there are no free active sites. Hence more enzyme is required to be added so that extra substrate can be utilized and rate of reaction can further be increased.
Answer:
a. ischemic conditions.
Explanation:
Hello,
In this case, considering that acute tubular necrosis (ATN) has been widely acknowledged as a harmful medical condition showing off the death of tubular epithelial cells that give the form to the renal tubules of the kidneys; it presents with acute kidney injury. Thus, common causes of ATN include low blood pressure and use of nephrotoxic drugs which is more technically known as a. ischemic conditions in which the blood flow is very weak.
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