Bio 101 chp 2

_____ are monomers of proteins

• nucleotides

• amino acids

• glucose and fructose

• fatty acids

Tags

NGSS.HS-LS1-6

Dehydration synthesis removes a _____ and bonds two monomers together

• H20

• CO2

• glucose

• Hydrogen +

_____ is a bond that shares a pair of electrons equally.

• non polar covalent bond

• polar covalent bond

• ionic bond

• hydrogen bond

_____ is a strong bond that does not share electrons

• ionic bond

• hydrogen bond

• polar covalent bond

• non polar covalent bond

Tags

NGSS.HS-PS1-3

how many electrons can fill the 2nd electron shell of an atom

• 2

• 4

• 8

• 10

Oxygen has 6 electrons in its valence (outer most) electron shell. How many vacancies does it have for additional electrons?

• 1

• 2

• 4

• 6

Tags

NGSS.HS-PS1-1

____ are atoms with the same number of protons but different numbers of neutrons

• isotopes

• ions

• elements

• cations

Which element is NOT one of the 6 most abundant organic elements

• Carbon

• Hydrogen

• Silicon

• Phosphorous

_____ are positively charged sub atomic particles that weigh 1 amu

• neutrons

• electrons

• quarks

• protons

Many organisms try to maintain a pH close to____

• 7

• 1

• 4

• 12

Tags

NGSS.HS-LS1-3