BIO UNIT 1 STUDY TEST

190656
Quiz by , created about 4 years ago

Macromolecule review for students

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190656
Created by 190656 about 4 years ago
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Question 1

Question
What kind of bonds do water molecules form?
Answer
  • hydrogen bonds
  • covalent bonds
  • ionic bonds

Question 2

Question
Chemical reactions do not create or destroy matter; they REARRANGE it.
Answer
  • True
  • False

Question 3

Question
What is cohesion?
Answer
  • tendency of molecules of the same kind to stick together
  • clinging of one substance to another

Question 4

Question
What is adhesion?
Answer
  • tendency of molecules of the same kind to stick together
  • clinging of one substance to another

Question 5

Question
Because of waters hydrogen bonds, water has...
Answer
  • has a stronger resistance to temperature change
  • cohesion
  • adhesion
  • easier to heat up
  • slower to evaporate

Question 6

Question
What is a solvent?
Answer
  • the dissolving agent?
  • the substance that is dissolved?

Question 7

Question
What is the solute?
Answer
  • the dissolving agent?
  • substance that is dissolved?

Question 8

Question
What are the most common elements in the body?
Answer
  • Sulfur
  • Hydrogen
  • Calcium
  • Lead
  • Phosphorus
  • Oxygen
  • Magnesium
  • Nitrogen
  • Carbon
  • Silicon

Question 9

Question
Bonds within a molecule are called?
Answer
  • intramolecular bonds
  • intermolecular bonds

Question 10

Question
Bonds between molecules are called?
Answer
  • intermolecular bonds
  • intramolecular bonds

Question 11

Question
What are ionic bonds?
Answer
  • the sharing of electrons
  • electron exchange

Question 12

Question
What are covalent bonds?
Answer
  • share electrons
  • electron exchange

Question 13

Question
An acid is a substance that donates [blank_start]hydrogen ions[blank_end] to a solution (exp. hydrochloric acid)
Answer
  • hydrogen ions

Question 14

Question
A base is a substance that reduces the [blank_start]hydrogen ion[blank_end] concentration of a solution by adding [blank_start]OH-[blank_end] molecules.
Answer
  • hydrogen ion

Question 15

Question
ph scale stands for: [blank_start]potential of hydrogen[blank_end]
Answer
  • potential of hydrogen

Question 16

Question
[blank_start]Hydrolysis[blank_end] is used to break polymer bonds
Answer
  • Hydrolysis

Question 17

Question
What are monomers for carbohydrates?
Answer
  • monosaccharides
  • glycerol
  • amino acids
  • nucleotides
  • fatty acids

Question 18

Question
Carbohydrates are made of [blank_start]monosaccharides[blank_end] which make [blank_start]disaccharides[blank_end] which make [blank_start]polysaccharides[blank_end] using [blank_start]dehydration synthesis[blank_end].
Answer
  • monosaccharides
  • disaccharides
  • polysaccharides
  • dehydration synthesis

Question 19

Question
Monomers are linked together form polymers by [blank_start]dehydration synthesis[blank_end], a reaction that removes a molecule of [blank_start]water[blank_end].
Answer
  • dehydration synthesis
  • water

Question 20

Question
Glucose is a...
Answer
  • polysaccharide
  • monosaccharide
  • disaccharide

Question 21

Question
To form a disaccharide, one monomer gives up a [blank_start]hydroxyl[blank_end] group and the other one gives up a [blank_start]hydrogen[blank_end] atom.
Answer
  • hydrogen

Question 22

Question
to make an amino acid what else is necessary?

Question 23

Question
What is necessary to form a nucleotide in DNA?
Answer
  • deoxyribose (5 carbon sugar)
  • ribose (5 carbon sugar)
  • phosphate group
  • carboxyl group
  • nitrogen base

Question 24

Question
This is an unsaturated fatty acid.
Answer
  • True
  • False

Question 25

Question
The functions of lipids are...?
Answer
  • Insulation of the body
  • Quick Energy
  • Genetic Material
  • Support and protection of vital organs
  • Long term energy storage
  • Immune System

Question 26

Question
The function of nucleic acids are...?
Answer
  • The energy coin (ATP)
  • Insulation of the body
  • Structure
  • Genetic material
  • Protect vital organs

Question 27

Question
Lipids are made of...
Answer
  • amino acids
  • glycerol
  • nucleotides
  • fatty acids
  • monosaccharides

Question 28

Question
Starch is found in plants and serves as a glucose bank. The plant can withdraw glucose for energy or building materials.
Answer
  • True
  • False

Question 29

Question
Chitin is a structural [blank_start]polysaccharide[blank_end] used by insects and crustaceans to build their exoskeletons. It is also found in the [blank_start]cell walls[blank_end] of fungi.
Answer
  • polysaccharide
  • cell walls

Question 30

Question
[blank_start]Cellulose[blank_end] is the most abundant compound. Component of the tough cell walls that enclose plant cells.
Answer
  • Cellulose

Question 31

Question
Another name for a fat is triglyceride.
Answer
  • True
  • False

Question 32

Question
Which ones are the reactants? HCI +NaOH=NaCl +H20
Answer
  • NaCl +H2O
  • NaCl + HCI
  • HCI + NaOH

Question 33

Question
What cells store fats?
Answer
  • Muscle
  • Immune
  • Red Blood Cells
  • Adipose

Question 34

Question
In a phospholipid: the heads are [blank_start]hydrophilic[blank_end], and the tails are [blank_start]hydrophobic[blank_end].
Answer
  • hydrophobic
  • hydrophilic

Question 35

Question
Disaccharides are used for...
Answer
  • quick energy
  • transfer
  • energy storage
  • structure

Question 36

Question
To test for glucose you would use...
Answer
  • Iodine
  • Buirets
  • Benedicts

Question 37

Question
To test for starch you would use...
Answer
  • Iodine
  • Buirets
  • Benedicts

Question 38

Question
The two DNA strands are held together by ionic bonds.
Answer
  • True
  • False

Question 39

Question
Functions of protein include...
Answer
  • structure
  • enzymes
  • transportation
  • immune system
  • chemical messengers
  • receptors

Question 40

Question
Polypeptides are made of..
Answer
  • covalent peptide bonds
  • ionic peptide bonds
  • hydrogen peptide bonds

Question 41

Question
[blank_start]Globular[blank_end] proteins are usually enzymes. [blank_start]Fibrous[blank_end] protein are usually hair, tendons, etc.
Answer
  • Fibrous
  • Globular

Question 42

Question
Shape determines [blank_start]function[blank_end] of a macromolecule
Answer
  • function

Question 43

Question
To test for protein you use...
Answer
  • Biurets
  • Benedicts
  • Iodine

Question 44

Question
In DNA: [blank_start]Adenine[blank_end] forms 2 bonds with [blank_start]Thymine[blank_end] and [blank_start]Guanine[blank_end] and [blank_start]Cytosine[blank_end] form 3 bonds with each other.
Answer
  • Adenine

Question 45

Question
[blank_start]Denaturation[blank_end] is when the R-Group interactions are "broken". Causing a protein to lose its ability to function.
Answer
  • Denaturation

Question 46

Question
Causes for denaturation...
Answer
  • salinity
  • high temp
  • freezing
  • change in pH