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Biology - Biochemistry
Biology - Biochemistry
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Ch 6.1,2,3 CP Biology Ch 2 Acc Biology
Flashcards
27 cards
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Questions
27
Answers
1
Chemistry is the...
study of living things.
study of moving objects?
study of matter?
study of compounds?
2
An acid on the pH scale is
at 7
higher than 7
lower than 7
3
Where will Apple juice fall on the pH scale?
lower than 7
around 7
higher than 7
4
The form of the enzyme can change, if one of the following changes.
amount of product
H2O cohesion
pH
amount of substrate
5
The region where the enzyme and substrates bind is the
products
enzyme-substrate complex
substrate
active site
6
Which of the following statements is incorrect?
Water molecules are enzymes.
Water molecules are polar.
Water molecules are found in every cell.
Water molecules are neutral.
7
The amount of energy needed to start a reaction is called
catalysts
activation energy
enzyme substrate complex
8
When enzymes are changed by physically or chemically it means the enzyme is _________.
denatured
not irking hard enough
working too hard
a catalyst
9
In a chemical equation the starting substances are called
enzymes
products
reactants
10
Energy is _____________ when bonds are broken.
absorbed
released
11
Enzymes lower
the energy necessary for the reaction
the products of a reaction
the number of atoms in a reaction
12
The chemical formula for water is
O2H
water
pictured above
H2O
13
An example of a molecule with an ionic bond is
H2O
NaCl
CO2
O2
14
Atoms have a __________________ charge.
negative
2 e, 8e, 8e,
neutral
positive
15
Hydrogen bonds between water molecules are formed by
ions
adhesion
tape
cohesion
16
In an atom, this particle orbits around the nucleus.
electron
neutron
ion
proton
17
Elements with ionic bonds are held together by
the slight charge of the elements
the equal sharing of electrons
the unequal sharing of electrons
18
The atomic number of an atom is the
mass
amount of electrons
amount of protons
amount of neutrons
19
Cleaning detergents fall where on a pH scale?
around 7
higher than 7
lower than 7
20
__________ speed up chemical reactions.
enzymes
water
atoms
compounds
21
If the form of an enzyme changes
the enzyme can work slower
the enzyme can work faster
the enzyme will not work
22
pH stands for
peace and Honor
power of Hydrogen
H+
power of Hydroxide
23
Atoms are made up of
radioactivity
protons, neutrons, ions
molecules
protons, neutrons, electrons
24
Substance consisting of one type of atom is a(n)
element
molecule
compound
atom
25
Electrons are shared in this type of bond
ionic
covalent
26
Is the energy being absorbed or released in the diagram below?
released
absorbed
27
An example of water in a suspension is
coke-a-cola
blood
milk in coffee
water and lemonade mix
