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- 1. Multiple Choice
Which organic molecule follows the 1:2:1 ratio?
Nucleic Acids
Carbohydrates
Proteins
Lipids
- 2. Multiple Choice
Hemoglobin, antibodies, and enzymes all represent examples / functions of
Carbohydrates
Lipids
Proteins
Nucleic Acids
- 3. Multiple Choice
What type of lipid is represented in the picture below?
Waxes
Phospholipids
Triglycerides
Steroids
- 4. Multiple Choice
What is the monomer and polymer for proteins?
Monomer: Amino Acids
Polymer: Polypeptide
Monomer: Monosaccharide
Polymer: Polysaccharide
Monomer: Fatty Acids
Polymer: Glycerol
Monomer: Nucleotide
Polymer: Nucleic Acids
- 5. Multiple Choice
What is the difference between saturated fats and unsaturated fats?
Saturated fats are much healthier than unsaturated fats because they are easier to break down.
Unsaturated fats have a straight structure, while saturated fats have a bent structure.
Saturated fats have no double bonds between carbon atoms, while unsaturated fats have double bond(s) between carbon atoms.
Unsaturated fats are usually found solid at room temperature, while saturated fats are usually found as liquid at room temperature.
- 6. Multiple Choice
What organic molecule contains the element Nitrogen?
Proteins
Carbohydrates
Nucleic Acids
Lipids
- 7. Multiple Choice
What elements are found in ALL organic molecules?
Carbon only
Carbon and Oxygen
Carbon, Hydrogen, and Oxygen
Carbon, Hydrogen, and Nitrogen
- 8. Multiple Choice
What does the Lock & Key Model represent?
The way enzymes and substrates "fit together", where enzymes are specific for each reaction
When a substrate breaks off from an enzyme, forming a new product
When a substrate does not fit together with the active site of an enzyme
When the specific reaction is sped up by the enzyme.
- 9. Multiple Choice
What is the active site of an enzyme?
the biological molecule that the enzyme works on
the new biological molecule that is formed once the reaction takes place
the catalyst that speeds up or causes the reaction between organic molecules
the specially-shaped area of an enzyme that fits around the molecule being bound to it
- 10. Multiple Choice
Carbohydrates make up _____% of our food intake.
75
100
20
60
- 11. Multiple Choice
What word represents the following definition?
"The building block = a single molecule that can be bonded to identical molecules to make up even larger molecules."
Polymer
Monomer
Amino Acids
Monosaccharide
- 12. Multiple Choice
Glucose, fructose, and galactose are all examples of:
Disaccharides
Polysaccharides
Monosaccharides
Polymers
- 13. Multiple Choice
Which lipid has two fatty acid chains with a phosphate head?
Triglycerides
Phospholipids
Steroids
Waxes
- 14. Multiple Choice
Which molecule is NOT organic?
Glucose (C6H12O6)
Water (H2O)
Lactose (C12H22O11)
Starch (C6H10O5)
- 15. Multiple Choice
What is an example of a polysaccharide?
Cellulose
Phospholipid
Lactose
Celery
- 16. Multiple Choice
How many types of amino acids are there?
12
10
75
20
- 17. Multiple Choice
Where are facilitator / helper molecules found on a cell?
The cytoplasm
The cell membrane
The nucleus
The mitochondria
- 18. Multiple Choice
What is the function of a helper / facilitator molecule?
It is a chemical messenger that is sent throughout the body by the circulatory system.
It provides structure for the muscles in an organism's body.
It allows certain substances to enter or leave the cell.
It provides a line of defense for when a foreign substance enters the body.
- 19. Multiple Choice
What is NOT a function of lipids?
Long-term energy storage
Padding and insulation
Make-up of cell membrane
Hemoglobin and antibody make-up
- 20. Multiple Choice
What makes up the cell membrane of a cell?
Phospholipids
Triglycerides
Polypeptide chains
polysaccharides
- 21. Multiple Choice
The phosphate head of a phospholipid is:
Hydrophobic (water-fearing)
Hydrophilic (water-loving)
Polar
is a long fatty acid chain
- 22. Multiple Choice
What type of lipid is made up of three fatty acid chains and glycerol?
Triglyceride
Phospholipid
Waxes
Steroids
- 23. Multiple Choice
What type of molecule is shown here?
Monosaccharide
Amino Acid
Polysaccharide
Steroid
- 24. Multiple Choice
Corn and celery cannot be digested and maintains their structure because of what organic molecule?
Myosin
Starch
Cellulose
Polypeptide
- 25. Multiple Choice
What molecule is the food energy required for cellular respiration?
Lactose
Glucose
Fructose
Cellulose
- 26. Multiple Choice
What happens when there is NOT enough glucose in the blood?
The pancreas secretes the hormone insulin to take in glucose
The glucose has no place to go and is floating throughout the bloodstream
The pancreas secretes the hormone glucagon to break down glycogen into glucose
The body sugar level spikes up, causing severe diabetes in a living organism
- 27. Multiple Choice
What happens if a substrate does not match with an enzyme?
Everything will remain the same
The enzyme will quickly find another substrate to join with, and can even speed up the reaction
The rate of reaction will slow down
The reaction will not take place at all
- 28. Multiple Choice
What is NOT an example of a steroid?
Myosin & Actin
Cholesterol
Some hormones
Vitamins
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