Unit 2 Practice Quiz

Description

This will help you prepare for the Unit 2: Chemistry of Life test.
sealescience
Quiz by sealescience, updated more than 1 year ago
sealescience
Created by sealescience over 8 years ago
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12

Resource summary

Question 1

Question
Compare the structure of carbohydrates and lipids.
Answer
  • They both contain hydrogen-carbon bonds.
  • The both contain the elements carbon, hydrogen, and oxygen.
  • They're both constructed with long hydrocarbon chains.
  • They're both used for structures in the body.
  • They're both made of carbon rings.

Question 2

Question
Which of the following is a list of monomers?
Answer
  • carbohydrates, nucleic acids, proteins
  • nucleotides, amino acids, monosaccharides
  • glucose, amino acids, fatty acids
  • lipids, proteins, amino acids

Question 3

Question
Which of the following are biological processes?
Answer
  • monomers, polymers
  • lipids, carbohydrates, H2O
  • dehydration synthesis, protein synthesis, hydrolysis
  • photosynthesis, hydrolysis

Question 4

Question
Which of the following are biological macromolecules?
Answer
  • carbohydrates
  • lipids
  • nucleic acids
  • proteins
  • water
  • salt

Question 5

Question
Which of the following elements are found in a protein?
Answer
  • carbon
  • hydrogen
  • oxygen
  • nitrogen
  • phosphorous
  • sodium

Question 6

Question
Why is water considered a polar molecule?
Answer
  • it contains two hydrogen atoms
  • both ends carry a positive charge
  • both ends carry a negative charge
  • each end has a different charge (positive and negative)
  • it dissolves other polar molecules

Question 7

Question
What is the maximum number of covalent bonds one carbon atom able to form?
Answer
  • 1
  • 2
  • 4
  • 8

Question 8

Question
Which of the following describes the role of a phospholipid?
Answer
  • Phospholipids store short term energy for the cell
  • Phospholipids catalyze (speed up) chemical reactions
  • Phospholipids form the cell's membrane
  • Phospholipids carry hereditary information

Question 9

Question
Which of the following shows foods high in carbohydrates?
Answer
  • eggs, meat, fish, beans
  • fats, oils, waxes
  • bread, rice, vegetables, and sugar

Question 10

Question
Which of the following is liquid at room temperature?
Answer
  • saturated fatty acids
  • unsaturated fatty acids
  • phospholipids
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