Font size
WorksheetsBIO1140 Exam 2 Review
Total questions: 32
Worksheet time: 11mins
What polysaccharide is a structural component found in the cell walls of plants?
Starch
Cellulose
Sucrose
Glycogen
The people of which region do NOT show high prevalence of the gene for lactose tolerance?
Northern Europe
East Africa
East Asia
West Africa
What secondary structure of a protein is exhibited in this image?
alpha helix
beta pleated sheet
peptide bond
r group
In the article written by Harvard scientists,
the Sugar Association paid them to condemn fat as a contributor to heart disease
the cattle industry paid them to condemn sugar as a contributor to heart disease
they found that fat was a leading factor of heart disease without a biased funding source
they found that sugar was a leading factor of heart disease without a biased funding source
What state would this fat be in at room temperature?
Liquid
Gas
Solid
Which is NOT a category of lipids?
Fats/triglycerides
Cholesterols
Steroids
Phospholipids
Which sequence contains a molecule that does not fit?
Maltose, Lactose, and Sucrose
Galactose, Glucose, and Fructose
Galactose, Glucose, and Sucrose
Name the false statement regarding outcomes of the hydrogenation process.
Hydrogens are added into a fatty acid chain with a double bond
A trans fat is created
The food becomes solid at room temperature
A double bond is introduced into a fatty acid chain
The tails of phospholipids are hydrophilic.
True
False
Select the false statement in regards to steroids.
Steroids are proteins.
Steroids consist of four carbon rings.
Steroids include sex hormones such as estradiol, testosterone, and progesterone.
Cholesterol is a steroid.
This is a monomer of which nucleic acid?
nucleotide
RNA
Phosphate
DNA
What is the monomer of a protein?
polypeptide
ribosome
amino acid
monosaccharide
The tertiary structure of proteins describes shape due to _______________ interactions.
backbone
R group
polypeptide
amino acid
Which of the following is NOT a component of an amino acid?
Carboxyl group
Pentose sugar
Amino group
R group
Central carbon
Amino acids are held together in a polypeptide chain by
proteinic bonds
hydrogen bonds
ionic bonds
peptide bonds
What process would you use to link monomers together?
dehydration reaction
hydrolysis
Which response is NOT a difference between RNA and DNA?
RNA is a single helix
RNA has ribose sugar
RNA does not have an alternating sugar-phosphate backbone
RNA has the base uracil
Which base can NOT be found in RNA?
Adenine
Guanine
Cytosine
Thymine
Which of the following is NOT a component of a nucleotide?
Phosphate
Sugar
Nitrogenous base
Hydrocarbon chain
Name any nitrogenous base.
(a)
Why is the phospholipid "head" polar?
Because it is bigger than the tails
Because it is connected to a glycerol
Because it has a phosphate group
Because the phospholipid has only two fatty acid chains
Based on this description, is the protein globular or fibrous?: Elastin helps tissue maintain its shape after being stretched.
Globular
Fibrous
Glycogen, a polysaccharide found in the body, functions as
long term energy storage
short term energy storage
a structural protein
Which response is NOT one of the main functions of a fat?
Making up cell walls
Long term energy storage
Insulation
Cushioning organs
DNA transmits hereditary information.
True
False
Select the correct statement regarding carbohydrates.
Humans store energy in the form of starch.
Glycogen is stored in the liver and muscles.
Fructose can be processed by all of your body cells.
Lactose is a monosaccharide, the smallest form of a carbohydrate.
What biomolecule is being shown here?
Lipid
Protein
Carb
Nucleic acid
Select the INCORRECT statement regarding this substance.
This substance consists of lipids.
This substance has fatty acids with no double bonds.
This substance is solid at room temperature.
This substance is hydrophobic.
One wrong amino acid can lead to a change in the shape of (a) , causing a decrease in the ability to transport oxygen in the blood.
Select the false statement regarding cholesterol.
Cholesterol is found in animal cell membranes.
Cholesterol is the precursor for making sex hormones.
Cholesterol is a protein.
Too much cholesterol can cause atherosclerosis.
The main point throughout this chapter: _______________ impacts ________________.
(a)
Which biomolecule do you find the most interesting?
(a)
