(COULD YOU PLEASE ANSWERS THESE MULTIPL QUESTIONS FOR MICROBILOGY)
THANK YOU!
5. an isotope of an atomic number 9 and mass number 21 .how many neutrons are in this
isotope?
a. 9
b. 12
c.21
d.30
6. If the PH of a solution changes from 2 to 1 what happens to the concentration of hydrogen
ions?
a. it increases 10 times
b. it goes down by 2 times
c.it goes down by half
d.it decreases 10 times
8. what is the classification of the following chemical reaction?
sucrose+H2O..............>Glucose+fructose
a. anabolic
b.dehdration synthesis
c.endergonic
d. decomposition
9. of the options below ,which one is the best definition of ATP?
a. it is a molecule that stores phosphate
b.it is a molecule stored for food use
c. it is a molecule for long term
storage of energy

d.it is a molecule that supplies energy to do work
10.plant cell walls are made of
a.proteins
b.lipids
c.monosaccarides
d.polysaccharides
11. chlorophene is a basic dye with a green color. When staining bacteria cells with
chlorophene,the cells will be:
a.clear
b. green
12. true or false: ionic bonds are stronger than hydrogen bonds
a. true
b.false