Carbohydrates, lipids, and proteins

The type of polysaccharide used by plants to create cell walls

• starch

• lactose

• glycogen

• cellulose

Glucose is an example of a

• carbohydrate

• protein

• lipid

• nucleic acid

Which group of organic molecules are composed of glycerol and fatty acids and serve as long-term energy storage?

• proteins

• lipids

• carbohydrates

• nucleic acids

The primary function of carbohydrates is

• building muscle

• immediate energy

• helping the immune system

• generating heat

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Also known as monosaccharides (ONE sugar), there are the building blocks of carbohydrates

• lipids

• simple sugars

• nucleotides

• amino acids

Organic molecules contain which two elements?

• carbon & oxygen

• carbon & hydrogen

• hydrogen & nitrogen

• oxygen & calcium

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Proteins, carbohydrates, and lipids are similar in that they are ALL

• made of fatty acids

• made of amino acids

• organic compounds

• made of simple sugars

An energy-rich, organic compound needed by organisms is

• water (H₂O)

• oxygen (O₂)

• salt (NaCl)

• glucose (C₆H₁₂O₆)

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More energy can be released from a fat molecule than from a glucose molecule because the fat molecule contains more

• genes

• chemical bonds

• organic compounds

• mitochondria

The type of polysaccharides used by animals to store their extra glucose is _______________. Humans store this in their liver.

• starch

• lactose

• glycogen

• cellulose