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BIOCHEM PRACTICE Flashcards | StudBud
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BIOCHEM PRACTICE
BIOCHEM PRACTICE
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1
Lipid
A fat substance that does not dissolve in oil
A fatty substance that dissolves in water
A fatty substance that does not dissolve in water
An animal that does not dissolve in water
2
Product of a dehydration synthesis reaction?
Carbon Dioxide
Glucose
Monosaccharide
Polysaccharide
3
Which of these is CHON?
Lipids
Carbohydrates
proteins
Nucleic Acids
4
What type of bond exists between carbon and hydrogen?
Nonpolar Covalent
Polar Covalent
Ionic
Metallic
5
WHAT MACROMOLECULE HAS SIDE CHAIN R GROUPS THAT DETERMINE PROPERTIES/
NUCLEIC ACIDS
CARBS
PROTEINS
LIPIDS
6
Cohesion is hydrogen bonding between water molucules
false
true
7
What is a Lipid
carbons with an amino group
Made mostly from carbon and hydrogen atoms.
Science
any of a group of long, linear macromolecules
8
The lipid bilayer has...
Hydrophobic Head
Genetic Material
Hydrophilic Head
Double Helix Shape
9
Amino acid is to protein as
simple sugar is to starch.
DNA is to RNA.
fat is to lipid.
sugar is to fat
10
During polypeptide synthesis two amino acids are joined together by a formation of a
glycosidic bond
peptide bond
ester bond
hydrogen bond
11
a monosaccharide
cellulose
sucrose
glucose
amino acid
12
Oxygen can form ___ covalent bonds.
2
8
5
6
13
Macromolecules are...
Trace elements
Types of fats
Large organic molecules
Subunits of molecules
14
WHAT MACROMOLECULE HAS PEPTIDE BONDS?
PROTEIN
LIPID
CARBOHYDRATE
NUCLEIC ACID
15
Polar or Non-Polar
Polar
Non-Polar
16
Which Biomolecule has CHONP
Proteins
Nucleic Acids
carbohydrate
lipids
17
Which of these are formed by covalent bonds
metal
Water
Rust
Salt
18
A difference between a saturated fat and an unsaturated fat is that...
Unsaturated fats are soilds at room temperature
Saturated fats have double bonds in their fatty acid chains
Saturated fats have no double bonds in their fatty acids
Saturated fats are liquid at room temperature
19
Adhesion is hydrogen bonding between water molucules and another substance
true
false
20
What is different about a polar bond versus a non polar bond?
Polar bond deals with polar bears and nonpolar with penguins
Both polar and nonpolar share electrons equally
Polar bond electrons shared unequally, non polar is opposite
Nolar bond electrons shared unequally, polar is opposite
21
A nucleotide consists of
A sugar, protein, and adenine
A sugar, an amino acid, and starch
A sugar, phosphate, and a nitrogen base
A starch, a phosphate, and a nitrogen base
22
All of the following are major macromolecules EXCEPT?
Nucleic Acid
Phospholipids
Proteins
Carbohydrates
23
What is hydrogen bonding?
attraction between negative & positive poles in an atom
A bonding of 2 similar atoms
24
A chain of amino acids
Central dogma of biology
Polypeptide
Eukaryotes
Structural component of ribosomes
25
R groups can be:
all of these
hydrophilic
charged
hydrophobic
26
How many components are in a nucleotide?
20
3 billion
2
3
27
What does dehydration synthesis mean?
I don't know
To put together while losing water.
Hold together Fatty acids and glycerol
To join together two molecules
28
WHICH IS AN EXAMPLE OF A PROTEIN?
SALIVA
HCl
SUBSTRATE
ENZYME
29
Saturated or unsaturated fat?
Saturated fat
Unsaturated fat
30
WATER HAS MANY UNIQUE PROPERTIES DUE TO THE FACT THAT IT IS A ???? MOLECULE
HOMEOSTASIS
SOLVENTRY
NON-POLARITY
POLARITY
31
Organic Chemistry is the...?
...study of Carbon matter and the changes it undergoes.
...study of life and the environments that supports it.
...the study of the formation of our universe.
...study of energy, forces and motion.
32
How many bonds can Carbon have?
2
3
5
4
33
THESE ELEMENTS ARE FOUND IN PROTEIN
C H O N P S
C H O N P
C H O
C H O N
34
Hydrogen bonding is the strongest of which force?
Intramolecular
Intermolecular
35
Hydrolysis
only metabolizes lipids
occurs only in plants
combines short polymers/monomers to make a longer polymer
needs H2O as a reactant
