The enzyme amylase breaks down starch into simple sugars. A student investigated the effect of pH on the activity of amylase. To do this, the
student varied the pH by using different pH buffer solutions and added
each buffer to equal volumes of amylase and starch solutions. Every 30
seconds a drop of the mixture was tested for starch using iodine that had
been dropped into wells in a dimple tray. Iodine turns blue/black if starch is
still present. The time taken for the lodine to no longer turn blue/black was
recorded for each pH tested. The results can be seen below. State the pH
at which the rate of reaction was greatest. Explain your answer
pH Buffer used Time taken for iodine to no longer turn blue/black (s)
4
120
6
60
8
150
10
Always turned blue/black

Provide one reason why mitosis occurs.

Seen in some gram-positive bacilli, occurs when only the inner portion of a cell wall is deposited across the dividing cell. this new cross wall puts tension on the outer layer of the old cell wall. eventually, the outer wall breaks at its weakest point with a snapping movement that tears it most of the way around. the daughter cells can then remain hanging together almost side by side being held by a small remnant of the original outer wall. choose from the following statements the ones that correctly discuss reproduction using binary fission in a bacterial cell. select all that apply. view available hint(s) select all that apply. due to the stretching of the cytoplasmic membrane, both cells will contain a complete genome. each daughter cell will contain an equal number of organelles. the daughter cell will be a permanently smaller copy of the mother cell but will contain a complete genome. each daughter cell is an exact copy of the other, both genetically and morphologically

Glucose is a form of sugar found in the blood cells use glucose as a source of energy, but too much or too little can cause serious health issues so, the body uses the hormone insulin to regulate glucose n the blood insulin maintain glucose levels in the blood if blood glucose lovels got very high, what would you expect to see happen to insulin levels?