Unit 2 Practice Quiz

Descrição

This will help you prepare for the Unit 2: Chemistry of Life test.
sealescience
Quiz por sealescience, atualizado more than 1 year ago
sealescience
Criado por sealescience aproximadamente 10 anos atrás
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Resumo de Recurso

Questão 1

Questão
Compare the structure of carbohydrates and lipids.
Responda
  • 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.

Questão 2

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

Questão 3

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

Questão 4

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

Questão 5

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

Questão 6

Questão
Why is water considered a polar molecule?
Responda
  • 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

Questão 7

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

Questão 8

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

Questão 9

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

Questão 10

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

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