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12 Questions

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Four Major Classes of Biomolecules

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Questions and Answers

What is the largest organelle in plants?

Nucleus

Vacuole

Chloroplast (correct)

Mitochondria

What property of water makes it the ideal biological solvent?

High polarity and hydrogen bonding (correct)

Low heat capacity

Low surface tension

High reactivity with other molecules

What does a positive change in entropy indicate?

No change in disorder

Transition to a solid state

Increase in disorder (correct)

Decrease in disorder

When the system is in equilibrium, will the reaction be reversible or irreversible?

Reversible Signup and view all the answers

What is the chemical definition of carbohydrates?

Compounds that produce polyhydroxy aldehydes or ketones on hydrolysis Signup and view all the answers

What is the main function of carbohydrates in living things?

Cellular structure and energy storage Signup and view all the answers

What is the main difference between lipids and carbohydrates?

Lipids are polymeric molecules, while carbohydrates are not Signup and view all the answers

Which biomolecule consists of long hydrocarbon chains and is utilized by the living cell?

Lipids Signup and view all the answers

What are the four major nitrogenous bases found in DNA?

Adenine, guanine, cytosine, and thymine Signup and view all the answers

What is the nucleotide present in RNA but not in DNA?

Uracil Signup and view all the answers

Which type of cell does not have structures surrounded by membranes?

Prokaryotic cell Signup and view all the answers

What is the supramolecular structure of cellulose?

Cell Wall Signup and view all the answers