Chapter 3 - Molecules of Life: Part 2

Question 1

Proteins are bodybuilding _ essential in our diet.

Answer 1

Macromolecules.

Question 2

Proteins have a variety of functions including …

Answer 2

• grow
• repair
• replace
• store energy

Question 3

Amino Acids are the _ block of Proteins.

Answer 3

Building.

Question 4

How many Amino Acids are there ?

Answer 4

20

Question 5

How many Amino Acids can we not make ( aka the essentials ) ?

Answer 5

9

Question 6

How many Amino Acids do we naturally produce ?

Answer 6

11

Question 7

Amino Acids are composed of …

Answer 7

C, H , O , N

Question 8

Amino Acids differ in _ chain composition.

Answer 8

Side

Question 9

Complete Proteins contain …

Answer 9

All the essential Amino Acids and usually from animals.

Question 10

Incomplete Proteins often contain …

Answer 10

Plant sources

Question 11

Complementary Proteins are often …

Answer 11

eaten together yielding all the essential amino acids.

Question 12

A protein’s function is influenced by what shape ?

Answer 12

It’s Three- Dimension shape.

Question 13

Denaturation is …

Answer 13

an extreme change in weather or pH that unfolds protein shape and function.

Question 14

What breaks stuff down and controls chemical reactions?

Answer 14

Enzymes.

Question 15

Most enzymes end with what ?

Answer 15

“-ase”

Question 16

The “push” reactions need is called …

Answer 16

Activation Energy

Question 17

Enzymes act as a catalyst by doing what ?

Answer 17

Lowering the Activation Energy.

Question 18

Can Enzymes be reused ?

Answer 18

Yes

Question 19

Temperature, pH, substrate concentration, and inhibitors and activators influence what ?

Answer 19

Enzyme Activity.

Question 20

Reaction rates increase at higher
_ ?

Answer 20

Temperatures.

Question 21

An Inhibitor _ reaction rates.

Answer 21

Decreases.

Question 22

An Activator _ reaction rates.

Answer 22

Increases.

Question 23

Incorrect amino acid sequence, description, and loss of function are related to

Answer 23

Misspelled Proteins

Question 24

Non functional enzymes are responsible for …

Answer 24

Diseases and Psychological problems.

Question 25

What are the building blocks of nucleic acids ?

Answer 25

Nucleotides.

Question 26

Nucleotides are composed of these three molecules …

Answer 26

Sugar, Phosphate group, and Nitrogenous base.

Question 27

Do Nucleic Acids carry genetic information ?

Answer 27

Yes.

Question 28

DNA and RNA are the two types of …

Answer 28

Nucleic Acids.

Question 29

The sequence bases in DNA is …

Answer 29

A (adenine), G (guanine), C (cytosine), T ( thymine).

Question 30

DNA holds _ info to build an organism.

Answer 30

Genetic.

Question 31

DNA bases are connected by _ bonds.

Answer 31

Hydrogen.

Question 32

The Base Pairing are _ with T and C with _ .

Answer 32

A with T , C with G.

Question 33

DNA is shaped like a …

Answer 33

Ladder.

Question 34

RNA is a universal _ .

Answer 34

Translator.

Question 35

RNA is a _ molecule.

Answer 35

Sugar.

Question 36

RNA is _ stranded unlike DNA which is double stranded.

Answer 36

Single.

Question 37

U (uracil) replaces T (thymine) in DNA or RNA ?

Answer 37

RNA.