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Organic Compounds Review - Biology Flashcards | StudBud
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Organic Compounds Review - Biology
Organic Compounds Review - Biology
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intro to chemistry from biology perspective #biology #grade9
Flashcards
27 cards
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Questions
27
Answers
1
Which of the following is a metalloid?
potassium
silicon
neon
carbon
2
An isotope is an element with
extra electrons
an uneven charge
too many protons
a different number of neutrons
3
Which of the following is a heterogeneous mixture?
diet Coke
chocolate chip pudding
pure sugar
vanilla pudding
4
How are large sugars split?
hydrolysis
dehydration synthesis
protein synthesis
5
What elements are found in proteins?
CHONPS
CHON
CHO, 1:2:1 ratio
CHO, 1:X:1 ratio
6
What is the symbol for potassium?
K
Na
Po
P
7
Water _________________ as it freezes.
shrinks
expands
8
An element has a mass of 23; it has 11 protons. How many neutrons does it have?
12
34
23
11
9
Which of the following is a chemical reaction?
evaporation
iron rusting
ice melting
water freezing
10
Which atomic particle has the least mass?
proton
electron
neutron
they are all the same
11
The atomic number of carbon is
6
4
12.001
12
12
Which of the following is an ion?
C-12
H2O
H+
C-14
13
Which element is a liquid at room temperature?
hydrogen
lithium
mercury
carbon
14
What do enzymes do in a reaction?
raise the energy needed
stop the reaction
Lower the energy needed
15
A substance with a pH of 6.2 would be considered
neutral
a weak base
basic
acidic
16
What is the monomer of a lipid?
fatty acid
amino acid
monosaccharide
nucleotide
17
What kind of bond forms between metals and non-metals?
ionic
van der Waals
covalent
hydrogen
18
What is the chemical process by which disaccharides are made?
hydrolysis
dehydration synthesis
evaporation
protein synthesis
19
Which of the following is used to store genetic info?
fatty acid
nucleic acid
lipid
carbohydrate
20
What does organic mean (in terms of chemistry)?
healthy
contains carbon
grown without pesticides
contains hydrogen
21
Which of the following is a compound?
H+
CaCl
Ca
C
22
What are carbohydrates used for?
storing genetic info
enzymes
energy storage
energy
23
Why is carbon a tramp?
because it will bond only with hydrogen
because it is hard to make it react
because it has 4 electrons to share
24
What are special characteristics of water?
all of these
cohesion
adhesion
high heat capacity
25
When elements share electrons, a(n) __________ bond is formed.
organic
hydrogen
ionic
covalent
26
What are proteins used for?
insulation and energy storage
structures and catalysts
storing genetic info
energy
27
Glucose is a
lipid
protein
nucleic acid
carbohydrate
