Unit final terms

Question 1

What are the 2 components of water?? Whats the ratio?

Answer 1

Hydrogen and oxygen, the ratio is 1:2

Question 2

What is covalent bonding?

Answer 2

When atoms share electrons, its a bonding type

Question 3

Why is water unable to have an equal covalent bond?

Answer 3

Cause o2 is more electronegative

Question 4

When does polarity occur?

Answer 4

When there is differences in atomic electronegativities

Question 5

What is an hydrogen bond?

Answer 5

When a weak bond interaction the between - and + ‘s regions of 2 different molecules

Question 6

What is cohesion?

Answer 6

When 2 of the same hydrogen bonds with one another

Question 7

What is adhesion?

Answer 7

When 2 different molecules form hydrogen bonds with each other

Question 8

What is surface tension?

Answer 8

when hydrogen bonds between water molecules at the surface

Question 9

What does water cohesive property allow for? What is another name for it?

Answer 9

It allows for water to absorb thermal energy before changing chemical states allowing for water to stay heated. High heat capacity

Question 10

What does the law of conservation state?

Answer 10

It states that energy cannot be created or destroyed

Question 11

What do living systems constantly need?

Answer 11

A constant input of energy to grow, reproduce and maintain organization

Question 12

Where do living systems get there energy from?

Answer 12

energy stored in chemical bonds

Question 13

What are the 4 required macromolecules required by living systems?

Answer 13

Carbohydrates, Amino acids, Nucleic Acids and lipids

Question 14

What atoms build up nucleic acids?

Answer 14

Carbon, nitrogen and phosphorous

Question 15

What atoms build up Carbohydrates?

Answer 15

Carbon. thats it lol

Question 16

What atoms build up Lipids?

Answer 16

Carbon and phosphorus

Question 17

What atoms build up proteins?

Answer 17

carbon and nitrogen

Question 18

What functional groups are in carbohydrates?

Answer 18

Hydroxyl ( −OH) and Carboxyl (COOH)

Question 19

What functional groups are in Proteins?

Answer 19

Anime (NH2), Hydroxyl ( −OH) and Carboxyl (COOH)

Question 20

What function group is in Lipids?

Answer 20

Ester (O=C−O)

Question 21

What functional groups is in Nucleic Acids?

Answer 21

Phosphate (PO4), Amino (NH2), Carboxyl (COOH)

Question 22

What is carbon’s role?

Answer 22

to build macromolecules, store energy and form cells

Question 23

What is a monomer?

Answer 23

chemical subunits used to build polymers

Question 24

What is a polymer?

Answer 24

a macromolecule made of many monomers

Question 25

What do dehydration synthesis reactions do?

Answer 25

Create macromolecules

Question 26

What is removed during dehydration synthesis?

Answer 26

The components h20 is removes from interacting molecules and a covalent bond is formed between them.

Question 27

What is polymers broken down to during hydrolysis?

Answer 27

Monomers

Question 28

What r examples of nucleotides? What are the difference between them?

Answer 28

DNA and RNA. DNA contains deoxyribose sugars and RNA contain ribose

Question 28

What happens to the bonds during hydrolysis? What happens to the water molecule that was broken off in dehydration synthesis?

Answer 28

They are broken, the water is added back into the monomers

Question 29

What is a polypeptide?

Answer 29

the structure of proteins and determines the structure of a protein

Question 30

Is lipid polar or nonpolar?

Answer 30

Non - Polar

Question 31

What are lipids compromised of ?

Answer 31

Fatty Acids and Glycerol

Question 32

What determine the structure and function of a lipid?

Answer 32

Fatty acid components based on saturation

Question 33

What are lipids that contain phosphorous called?

Answer 33

Phospholipids

Question 34

What do phospholipids contain?

Answer 34

Both hydrophilic and hydrophobic components

Question 35

What is Evolution?

Answer 35

change is specific genetic makeup over time nd is supported by multiple lines of evidence

Question 36

What is Natural selection?

Answer 36

in which organisms that have evolved have a better chance of survival, reproduction.

Question 37

What r Ionic bonds?

Answer 37

the transfer of electrons and causes ions to have opposite charges together

Question 38

What are hydrogen bonds?

Answer 38

result from the attraction between partial positive and negative charges in atoms.

Question 39

How to tell anything is a sugar?

Answer 39

if the word ends in ose

Question 40

What does each structure of a protein include?

Answer 40

Primary structure, secondary structure, tertiary structure and quaternary structure