Biochem quiz Maggio Stuyvesant (study guide)

Description

Quiz to help prep for biochem quiz for Ms. Maggio's biochem test.
Chrissie Mar
Created by Chrissie Mar
Chrissie Mar
Created by Chrissie Mar about 10 years ago
94
4

Resource summary

Question 1

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

Question 2

Question
What does the atomic number mean?
Answer
  • The number of electrons the atom has
  • The number of protons the atom has
  • the number of neutrons the atom has

Question 3

Question
Which shows correct Lewis dot structure?

Question 4

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

Question 5

Question
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)
Answer
  • polar
  • cohesion
  • adhesion
  • adhesion
  • cohesion

Question 6

Question
Hydrophilic means __________________ Hydrophobic means _______________
Answer
  • 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)

Question 7

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

Question 8

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

Question 9

Question
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.
Answer
  • sugars
  • energy
  • structure
  • genetic

Question 10

Question
What is the difference between phospholipids and triglycerides?
Answer
  • 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

Question 11

Question
Deoxyribonucleic acid and ribonucleic acid are two types of nucleic acids
Answer
  • True
  • False

Question 12

Question
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.
Answer
  • denature
  • catalysts

Question 13

Question
Enzymes will denature based off changes in
Answer
  • Temperature
  • Time
  • Brightness
  • Salinity
  • pH

Question 14

Question
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].
Answer
  • active
  • substrates
  • inhibitors

Question 15

Question
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
Answer
  • helix
  • amino
  • hydrogen
  • covalent
  • variable
  • two

Question 16

Question
What two saccharides create lactose?
Answer
  • glucose+glucose
  • amino acid+galactose
  • water+sucrose
  • glucose+galactose
  • maltose+sucrose

Question 17

Question
[blank_start]Waxes[blank_end] are lipids that [blank_start]waterproof[blank_end] plants.
Answer
  • Waxes
  • waterproof

Question 18

Question
Acids have less H+ ions and bases have more H+ ions
Answer
  • True
  • False

Question 19

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

Question 20

Question
the pH scale is measured from 0-20
Answer
  • True
  • False
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