Biochem quiz Maggio Stuyvesant (study guide)

Descrição

Quiz to help prep for biochem quiz for Ms. Maggio's biochem test.
Chrissie Mar
Quiz por Chrissie Mar, atualizado more than 1 year ago
Chrissie Mar
Criado por Chrissie Mar quase 8 anos atrás
57
4

Resumo de Recurso

Questão 1

Questão
What is atomic mass?
Responda
  • The number of protons in the nucleus
  • the number of protons and neutrons in the nucleus
  • the number of protons, neutrons, and electrons

Questão 2

Questão
What does the atomic number mean?
Responda
  • The number of electrons the atom has
  • The number of protons the atom has
  • the number of neutrons the atom has

Questão 3

Questão
Which shows correct Lewis dot structure?

Questão 4

Questão
What is the order of chemical bonding from strongest to weakest?
Responda
  • ionic, van der waals, hydrogen, covalent
  • van der waals, hydrogen, ionic, covalent
  • hydrogen, ionic, van der waals, covalent
  • covalent, ionic, hydrogen, van der waals

Questão 5

Questão
Water is a [blank_start]polar[blank_end] molecule. When water molecules stick together, it is called [blank_start]cohesion[blank_end]. When water molecules stick to other objects it is called [blank_start]adhesion[blank_end]. Capillary action is when water is soaked up in a plant through [blank_start]adhesion[blank_end] and [blank_start]cohesion[blank_end] working together. (hint for last part: alphabetical order)
Responda
  • polar
  • cohesion
  • adhesion
  • adhesion
  • cohesion

Questão 6

Questão
Hydrophilic means __________________ Hydrophobic means _______________
Responda
  • water "loving" (dissolved in water), "hating" water (repels, wants to get away from water)
  • "hating" water (repels, wants to get away from water), water "loving" (dissolved in water)

Questão 7

Questão
When water molecules at the top of water cohere together to avoid outside molecules, it is called [blank_start]surface tension[blank_end].
Responda
  • surface tension

Questão 8

Questão
What are the four essential organic compounds for life?
Responda
  • Carbohydrates
  • Proteins
  • Nucleic Acids
  • Water
  • Lipids
  • Alcohol

Questão 9

Questão
Carbohydrates create [blank_start]sugars[blank_end] for energy. Lipids store [blank_start]energy[blank_end] with fats. Proteins are important for the [blank_start]structure[blank_end] of cells. Nucleic acids contain the [blank_start]genetic[blank_end] code for cells.
Responda
  • sugars
  • energy
  • structure
  • genetic

Questão 10

Questão
What is the difference between phospholipids and triglycerides?
Responda
  • Phospolipids have a phosphorus "head" and 2 tails of fatty acids
  • Triglycerides have 3 tails of fatty acids
  • Triglycerides store fat
  • Phospholipids create the cell membrane
  • All of the above

Questão 11

Questão
Deoxyribonucleic acid and ribonucleic acid are two types of nucleic acids
Responda
  • True
  • False

Questão 12

Questão
Enzymes are biological [blank_start]catalysts[blank_end], which help to speed up metabolic reactions. Enzymes [blank_start]denature[blank_end] (lose characteristics) when the conditions are not right.
Responda
  • denature
  • catalysts

Questão 13

Questão
Enzymes will denature based off changes in
Responda
  • Temperature
  • Time
  • Brightness
  • Salinity
  • pH

Questão 14

Questão
Enzymes have [blank_start]active[blank_end] sites. In these sites, [blank_start]substrates[blank_end] fit in and cause chemical reactions to occur. The speed of reaction can depend on the presence of [blank_start]inhibitors[blank_end].
Responda
  • active
  • substrates
  • inhibitors

Questão 15

Questão
Levels of protein structure: Primary - [blank_start]amino[blank_end] acid sequence Secondary - [blank_start]hydrogen[blank_end] bonds in peptide chain form alpha-[blank_start]helix[blank_end] and beta sheets. Tertiary - non-[blank_start]covalent[blank_end] interactions between [blank_start]variable[blank_end] group within protein Quaternary - interaction between [blank_start]two[blank_end] polypeptide chains
Responda
  • helix
  • amino
  • hydrogen
  • covalent
  • variable
  • two

Questão 16

Questão
What two saccharides create lactose?
Responda
  • glucose+glucose
  • amino acid+galactose
  • water+sucrose
  • glucose+galactose
  • maltose+sucrose

Questão 17

Questão
[blank_start]Waxes[blank_end] are lipids that [blank_start]waterproof[blank_end] plants.
Responda
  • Waxes
  • waterproof

Questão 18

Questão
Acids have less H+ ions and bases have more H+ ions
Responda
  • True
  • False

Questão 19

Questão
Whats the difference between dehydration synthesis and hydrolysis?
Responda
  • dehydration synthesis creates new polymers
  • hydrolysis involves taking away a water molecule
  • dehydration synthesis involves taking away a water molecule
  • hydrolysis breaks down polymers

Questão 20

Questão
the pH scale is measured from 0-20
Responda
  • True
  • False

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