Biochemistry (Basics, Functions, Structures)

Question 1

MATTER

Answer 1

has mass + volume

Question 2

What are the subatomic particles

Answer 2

Protons (+, 1 mass), Neutrons (no charge, 1 mass), Electrons (-, no mass)

Question 3

Atoms becomes ______ by filling their ________ (valence shell) with _______

Answer 3

Stable, outer, electrons

Question 4

Ionic bonds form when oppositely charged ions attract. Polar or non polar?

Answer 4

Polar

Question 5

Covalent bonds

Answer 5

Form when electrons are shared between atoms (Each atom contributes 1 electron to make a pair (polar)

Question 6

An atom’s tendancy to attract a shared pair of electrons towards itself. If larger differences, __________ _______ are created.

Answer 6

Electronegativity. Partial charges.

Question 6

SPONCH

Answer 6

Sulfur: 2
Phosphorus: 3
Oxygen: 2
Nitrogen: 3
Carbon: 4
Hydrogen: 1

Question 7

Water

Answer 7

Important for living things. Represent 60-70% of an organism’s mass.
Physical + chemical properties make life possible.
Polar and a bent molecule

Question 8

Polar bonds and hydrogen bonds

Answer 8

They’re created with O - H bonds in positive and negative ends. Water molecules are cohesive (stick together)

Question 9

Anabolism and Catabolism

Answer 9

Water is involved with an assembly and disassembly of polymers in the body.

Question 10

Difference between Dehydration synthesis and Hydrolysis

Answer 10

Dehydration synthesis: takes monomers together where OH and H are removed to make water and a covalent bond.
Hydrolysis: takes polymers apart by using water to break a covalent bond.