biology questions?

Question

1) The linear sequence of monomers in a polypeptide chain is referred to as its____structure.

a)quaternary
b)secondary
c)tertiary
d)pentamerous
e)primary

2)In eukaryotic cells, waht name is given to the region between the nucleus and the plasma membrane?

a)cytoplasm
b)nucleoplasm
c)phospholipid bilayer
d)gane
e)cytosol

3.
Isotopes of an element have the same number of___ and different number of ____.

a)electrons...protons
b)protons...neutrons
c)neutrons...protons
d)protons electrons
e)neutrons...electrons

4. when water dissociates, what is tranferred from one water molecule to form a hydronium ion?

a)a hydrogen atom
b)H3O+
c)OH-
d)H2O
e)a hydrogen ion

5.nitrogen has an atomic number of 7; therefore it has ____electrons in its ouermost electron shell.

a)2
b)1
c)5
d)10
e)18

Answer 1

1-e
2-a
3-b
4-e
5-c