WorksheetsBiochemistry
Total questions: 30
Worksheet time: 16mins
Which of the following bond or force is not created by charge force
H bond
dipole dipole force
covalent bond
ionic bond
which of the following is not the property of water
high cohesion
high adhesion
high heat capacity
high density
which bond is responsible for the water has a relatively high freezing point and high boiling point
covalent bond
hydrogen bond
van der waal force
ionic bond
which of the following properties of water is not directly caused by hydrogen bond
cohesion
universal solvent
high specific heat
adhesion
the hemoglobin can transport O2 and CO2, this property is determined by
the sequence of amino acid in a protein
the secondary structure of protein
the 3-dimension structure of protein
how the four polypeptide in a protein arranged
What is the activation energy?
The energy of the products
The energy of the reactants
The minimum energy needed by the reactants to form the products
The energy lost in the reaction
Which letter corresponds to the activation energy of the reverse reaction?
A
C
D
E
Which letter corresponds to the energy of the products?
A
B
C
D
According to collision theory, what must the reactants have in order to form products?
The right size
The right shape
Enough energy
Nothing
Increase in temperature of the reactants can do one of the following
Slow collision frequency
Allow less effective collision between the particles
Cause particles to lose speed
Increase collision between the particles thus increasing the rate.
What is being represented by the letter A in the image?
enzyme
substrate
product
transition complex
Cells can produce over one thousand different enzymes at a time. Enzymes are critical to the metabolism of these cells, but why are so many different enzymes needed?
Cells are completely unable to control what enzymes
they produce
The variety of enzymes prevents their actions from being inhibited.
The active site of an enzyme can only bind to a specific substrate.
The products of a reaction are always converted into new enzymes.
what is the name of the site occupied by the non-competitive inhibitor
denature site
allosteric site
active site
inhibitory site
the hemoglobin can be allosteric changed by which of following
CO
CO2
O2
H2O
which of the following is not a protein
insulin
hexose
hexase
hemoglobin
which of the description is wrong about the unsaturated lipid
it must contain double bond
it can add H to form saturated lipid
it is better than saturated lipid for the organism
it must present as a cis form
which of the molecule fomular contain the least Carbon
glucose
fructose
ribose
glycogen
which one is odded out from the other three
cellulose
glycogen
amylose
amylopectin
which of the following functional group can cause litmus turn into red
hydroxyl
carboxyl
aldehyde
carbonyl
which of the following is not a covalent bond
glycosidic bond
pepetide bond
A-T C-G bond in DNA
phosphate bond in DNA
which of the following is not caused by hydrogen bond
the vapor turn into liquid water
the forming of α-helix and β-sheet in protein
the forming of triglyceride by fatty acid and glycerol
the forming of nitrogen bases complimentary in DNA
which one is not contributed by hydrophobic force
the 3 dimension of protein
the formation of cell membrane
the lipid can not be absorbed by stomach
the formation of ice
which of the following substance is involved with ionic bond
milk
soybean
salt
vitamin
which of the following is not the function of protein
supply energy
support and form the structure of cells
transportation shuttles
act like neurotransmitter
which of the following can not represent a molecule
water
carbon dioxide
copper
ATP
which of the following is odded out from the others
VA
VB
VD
VE
which one is odded out from the others
VA
VD
VE
VK
which of the disease can not be caused by defficiency of VD
osteoporosis
ricket
muscle twitchs
scurvy
which of the following is not a property of lipid
hydrophobic
contain less energy than sugar
the percentage of C in lipid is more than in protein
can‘t be absorbed directly
which of the following is right about DNA
it is a nucleic acid
it is a nucleotide
it is a nucleus
it is a nuclear
