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WorksheetsChemistry and Macromolecules
Total questions: 20
Worksheet time: 12mins
Would this molecule dissolve in water? Why or why not?
Yes, it mainly has polar bonds making it hydrophilic
Yes, it mainly has nonpolar bonds making it hydrophilic
No, it mainly has nonpolar bonds making it hydrophobic
No, it mainly has polar bonds making it hydrophobic
These are all examples of hexose sugars
True
False
What is the basic chemical formula for carbohydrates?
CHO
CH2O
C2HO2
CHO2
Is the following an example of dehydration synthesis or hydrolysis?
Dehydration synthesis
Hydrolysis
What type of reaction is this?
Hydrolysis
Anabolism
Dehydration synthesis
None of the above
Which is the mot acidic?
Black coffee (pH 5)
Bleach (pH 12)
Lemon juice (pH 2)
Pure water (pH 7)
There are 3 purines and 2 pyrimidines
True
False
What functional group is this?
Hydroxyl
Carbonyl
Amine
Nitrate
What accounts for the stability of the double stranded DNA molecule?
The direct bonding of the base to the phosphate molecule
Phosphodiester bonds between the nitrogenous bases
The bonds between purines and pyrimidines
Strong hydrogen bonds between the sugar and phosphate groups
What three structures are needed to make a nucleic acid?
phosphate group, sugar, nitrogenous base
purine, pyrimidine, phosphate group
amine group, sugar, nitrogenous base
hydroxyl group, purine, sugar
Starch is a glucose polymer that contains beta bonds
False
True
The 3 pyrimidines are cytosine, uracil, and thymine
True
False
What is the basic function of phospholipids?
Energy
Cell membrane
Bone growth
Repairs damaged tissues
Glucose + Glucose =
maltose
lactose
sucrose
galactose
Lactose is created through dehydration synthesis between what two sugars
glucose and glucose
glucose and fructose
galactose and fructose
glucose and galactose
Fatty acids are a good source of energy due to the long hydrocarbon chain
False
True
The role of a buffer is to
make a solution basic
allow the pH of a solution to vary widely
disrupt pH homeostasis
maintain pH homeostasis
Cellulose is glucose polymer that contains beta bond and is found in cell walls
True
False
Purines are a two ringed
True
False
You are running laps in the hot sun. You feel hot and sweaty. What emergent properties of water are working here?
Cohesion
High heat of vaporization
Low density of water
High specific heat
