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The Chemistry of Life #1: Atoms and Molecules

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The Chemistry of Life #1: Atoms and Molecules

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Questions and Answers

What is the main function of lipids in living things?

Store energy (correct)

Regulate body functions

Carry oxygen

Form enzymes

Which fatty acids are typically healthier for humans to consume?

Trans fatty acids

Monounsaturated fatty acids

Saturated fatty acids

Unsaturated fatty acids (correct)

Where is glycogen, a form of starch, mainly stored in animals?

Plant cells

Liver and muscles (correct)

Animal organs

Cell membranes

What are proteins mainly composed of?

Carbon, Hydrogen, Oxygen, and Nitrogen Signup and view all the answers

Which test can be used to identify the presence of proteins?

Millon’s reagent or Biuret test Signup and view all the answers

What is the main component of plant cell walls?

Cellulose Signup and view all the answers

Which elements are always present in all compounds?

Carbon and hydrogen Signup and view all the answers

How are carbohydrates classified based on their size?

Monosaccharides and polysaccharides Signup and view all the answers

What is the main function of carbohydrates in living organisms?

Energy provision Signup and view all the answers

What do simple sugars like glucose serve as in carbohydrates?

Energy storage units Signup and view all the answers

How do Benedict’s solution and Fehling’s A and B solutions react in the presence of glucose?

Change to red-brown upon heating Signup and view all the answers

Why are carbohydrates referred to as 'saccharides'?

Originating from the word 'sugar' Signup and view all the answers