1. Which of the following are true of the 20 common amino acids? Pick ALL that a

Question

1. Which of the following are true of the 20 common amino acids? Pick ALL that apply

A) They all have the same carboxylic acid group

B) They all have the same R group

C) They are polymers used to make proteins

D) They all have the same amino group

E) They are beta amino acids

2. Match the following roles to the MOST correct major biological macromolecule

lipids, nucleic acids, carbohydrates/sugars, proteins

___ Immediate energy use

___ Information storage

___ They do work (catalyse chemical reactions, movement, signaling in the body)

___ They create boundaries and isolated environments

___ Long term energy storage

___ Self recognition

3. What type of molecule would result from the reaction of acetic acid and trimethylamine?

A) monosubstituted amide

B) unsubstituted amide

C) disubstituted amide

D) trisubstituted amide

E) a salt

4. Which of the following are TRUE for the biology of phosphoric acid and phosphorylation? Pick ALL that apply

A) The electrons in the bonds between phosphates and oxygen atoms in diphosphates and triphosphates store a lot of potential energy

B) Phosphoryl groups tend to be uncharged at physiological pH

C) Phosphates, diphosphates, and triphosphates can be added to just about any molecule with an hydroxyl group

D) Diphosphates and triphosphates contain an anhydride-like grouping of phosphorous and oxygen atoms

E) Phosphoric acid is a monoprotic acid

5. http://i.imgur.com/UtDT4Yh.jpg

6. http://i.imgur.com/G5d75sQ.jpg

7. http://i.imgur.com/pON3TNW.jpg

8.http://i.imgur.com/v4MlHCY.jpg

Explanation / Answer

There are multiple questions here . i am allowed to answer only 1 at a time.But I will answer 1st 3 question for you.Please ask other as different question.

1. Which of the following are true of the 20 common amino acids? Pick ALL that apply
A) They all have the same carboxylic acid group
   yes
B) They all have the same R group
No. R group changes

C) They are polymers used to make proteins
No. they are monomers used to make proteins

D) They all have the same amino group
yes
E) They are beta amino acids
No

2. Match the following roles to the MOST correct major biological macromolecule

lipids, nucleic acids, carbohydrates/sugars, proteins

___ Immediate energy use: carbohydrates/sugars

___ Information storage : nucleic acids

___ They do work (catalyse chemical reactions, movement, signaling in the body): proteins

___ They create boundaries and isolated environments : proteins

___ Long term energy storage : lipids

___ Self recognition : nucleic acids

3. What type of molecule would result from the reaction of acetic acid and trimethylamine?
Its reaction between acid and base
E) a salt

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