Chemistry in Biology

The principles of chemistry are useful in cell biology because all living cells consist of chemicals and various chemical processes take place in many living organisms.

• This is why Chemistry in Biology is important

• This is why Chemistry in Biology is simply not too important

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Living things are composed mainly of three elements

• carbon, hydrogen, and oxygen

• carbon dioxide,

• only oxygen

• none of the above

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Molecules made mostly of carbon and hydrogen that make up the fats, oils, and waxes

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

Compounds made up of carbon, hydrogen, and oxygen atoms; the most common form is sugar

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

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A steroid is an example of ​a (a)  

• lipid

• protein

• nucleic acid

• carbohydrate

A steroid is an example of a ​ (a)  

• Iipid

• protein

• carbohydrate

• nucleic acid

The basic unit of life, the cell, is primarily composed of which elements?

• Carbon, Hydrogen, Oxygen

• Nitrogen, Phosphorus, Sulfur

• Helium, Neon, Argon

• Iron, Copper, Zinc

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Which type of biomolecule is primarily responsible for storing genetic information?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

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What is the role of enzymes in biological reactions?

• They slow down reactions

• They act as catalysts to speed up reactions

• They are used up in reactions

• They prevent reactions from occurring

Which of the following is a common characteristic of all lipids?

• They are soluble in water

• They are hydrophobic

• They are composed of amino acids

• They contain nitrogen