Human sex cells, or gametes, are produced early in the developing embryo. ... They initially develop only body (somatic) cells, each with a full complement of chromosomes. When the time comes to mate, they produce their sex cells, or gametes, as needed by forming them out of stem cells from adult tissue.
Cell membrane of a cell is responsible for the substances
that goes in and out of the cell’s cytoplasm and organelles. It is transports
different materials externally to internally and vice-verse. Hence the cell
membrane is like
<span><span>1. </span>The wall,
window and door of a house.</span>
<span><span>2. </span>The
security guard of a certain bank</span>
<span><span>3. </span>Or the
military sector of a country.</span>
Like these three real-life examples, they regulate and
control the flow of certain entities from outside to inside and vice-versa.
If there was left sided heart failure pulmonary blood pressure would increase. The blood that needs oxygen goes to the lungs, so the right side of the heart would be working harder trying to get the left side of the heart to work again. Having heart failure would also cause pain and panic also known as the fifth sense which would also cause the blood pressure to increase.
So first activation energy is lowered by enzymes !
and for this question.... almost All enzymes are made of protein ....so answer is B .... protein !!!
