Unit 3 Practice Test

What two elements do all organic compounds have in common?

• Carbon and oxygen

• Carbon and hydrogen

• Carbon and nitrogen

• Carbon and sulphur

Which of the following compounds is most likely to be part of living organisms?

• C₆H₁₂O₆

• BF₃

• MoCl₂

• H₂O

Which of the following is an inorganic compound?

• coal

• water

• sugar

• oil

Which organic compound is most involved in cell division?

• proteins

• carbohydrates

• nucleic acids

• lipds

A patient goes to the doctor complaining of frequent muscle twitches and occasional seizures. The doctor orders blood tests to investigate possible nutrient deficiencies. What chemicals should the doctor test for first?

• nitrogen and phosphorus

• potassium and calcium

• calcium and magnesium

• sulfur and nitrogen

You want to choose a fertilizer for your grass. The fertilizer you choose should be high in ____ to promote _______.

• sulfur, flower growth

• nitrogen, leaf growth

• calcium, strong roots

• magnesium, disease resistance

Compound Function: to provide energy, can be broken down into sugars

• Lipids

• Proteins

• Nucleic Acids

• Carbohydrates

Compound Function: Build organelles, build body parts, and helps with body defense

• Proteins
• Carbohydrates
• Nucleic Acids
• Lipids

Neutral solutions have a pH of:

• 0

• 1

• 7

• 14

NaOH may be found in drain cleaners and as a component of soaps. Is NaOH an acid or a base?

• Acid

• Base

• Neither (Neutral)