All of the following are functions of modified carbohydrate ...

[CQXA]

All of the following are functions of modified carbohydrate molecules except
 
  A) as chitin they act as a structural component of lobster shells.
  B) as heparin they form a fibrous network in blood clots.
  C) as a component of hemoglobin they transport oxygen.
  D) as a receptor molecule on cell surfaces they assist in the functioning of the immune system.
  E) as a component of cartilage they provide support to joints.

Question 2

Which of the following equations is not balanced?
 
  A) 2 Na + 2 H2O  2 NaOH + H2
  B) C3H8 + 5 O2  3 CO2 + 4 H2O
  C) 2 H2 + O2  2 H2O
  D) SO2 + O2  SO3
  E) 2 Al + 6 HCl  2 AlCl3 + 3 H2

Question 3

Which is the correct equation for the reaction of magnesium with hydrochloric acid to produce hydrogen and magnesium chloride?
 
  A) Mg + 2 HCl  H2 + MgCl2
  B) Mg + HCl  H + MgCl
  C) 2 Mg + 6 HCl  3 H2 + 2 MgCl2
  D) Mg + 2 HCl  2 H + MgCl2
  E) Mg + 3 HCl  3 H + MgCl2

Question 4

A sugar present in honey in a 50/50 ratio with glucose is
 
  A) fructose.
  B) sucrose.
  C) maltose.
  D) glucose.
  E) mannose.

[pallen55]

Answer to Question 1

C

Answer to Question 2

D

Answer to Question 3

A

Answer to Question 4

A

[CQXA]

Gracias!

[Chelseyj.hasty]

Excellent