Proteins, starch, and DNA are similar in that they are all
organic compounds
parts of genes
made of amino acids
made of simple sugars
2. Multiple Choice
1 minute
1 pt
Which substance is an inorganic molecule?
starch
DNA
carbon dioxide
fat
3. Multiple Choice
1 minute
1 pt
The diagram shown represents a biological process: Which set of molecules is best represented by letters A and B? (Think Photosynthesis)
A: oxygen and water B: glucose
A: glucose B: carbon dioxide and water
A: carbon dioxide and water B: glucose
A: glucose B: oxygen and water
4. Multiple Choice
1 minute
1 pt
In a chemical analysis of a sample of animal tissue, which element would most likely be found in the smallest quantity?
carbon
oxygen
hydrogen
nitrogen
5. Multiple Choice
1 minute
1 pt
A chemical analysis of organisms from each kingdom shows that living things are primarily composed of the elements
carbon, hydrogen, chlorine, and sulfur
carbon, hydrogen, oxygen, and nitrogen
iron, calcium, hydrogen, and oxygen
chlorine, carbon, calcium, and sulfur
6. Multiple Choice
1 minute
1 pt
Which elements are present in all organic compounds?
hydrogen and oxygen
nitrogen and oxygen
nitrogen and carbon
hydrogen and carbon
7. Multiple Choice
1 minute
1 pt
Which substance plays a major role breaking bonds to create ENERGY for major reactions in the body?
water
glycogen
glucose
glycerol
8. Multiple Choice
1 minute
1 pt
Base your answer on the diagram and on your knowledge of biology. The diagram represents a portion of a starch molecule. The building blocks for this molecule are
amino acids
simple sugars
fatty acids
molecular bases
9. Multiple Choice
1 minute
1 pt
Some structural formulas of organic molecules are shown in the diagram. Which structures represent carbohydrates?
1 and 5
2 and 4
3 and 2
1 and 2
10. Multiple Choice
1 minute
1 pt
Which compound is a monosaccharide?
sucrose
maltase
ribose
starch
11. Multiple Choice
1 minute
1 pt
What are the building blocks of lipids?
Glucose
Amino acids
Fatty acids and glycerol
nucleic acids
12. Multiple Choice
1 minute
1 pt
Animals commonly store energy in the form of
fat and glycogen
waxes and oils
vitamins and minerals
water and carbon di
13. Multiple Choice
1 minute
1 pt
Which statement best describes some protein molecules in a cell?
Proteins are long, folded chains that can form various cell parts
Proteins are composed of four different starches that direct cell activity.
Proteins are long, twisted strands of glucose that regulate cells.
Proteins are genetically diverse substances that are synthesized in the nucleus.
14. Multiple Choice
1 minute
1 pt
The basic building blocks of a protein are
glucose molecules
amino acids
fatty acids and glycerol
lipids
15. Multiple Choice
1 minute
1 pt
The molecule represented in the image would most likely result from the partial digestion of a
protein
lipid
polysaccharide
nucleic acid
16. Multiple Choice
1 minute
1 pt
The indicator used to test for simple sugars is called
Biurets
Iodine
Benedicts
BTB
17. Multiple Choice
1 minute
1 pt
A positive test for sugars would turn the solution
purple
red, orange, green
blue and purple
blue-black
18. Multiple Choice
1 minute
1 pt
The indicator used to test for Proteins is known as
Biurets
Bendedicts
Iodine
BTB
19. Multiple Choice
1 minute
1 pt
A positive test for proteins would turn the solution
blue-black
violet
orange, red, green
blue
20. Multiple Choice
30 seconds
1 pt
A positive test for starch would turn the solution
violet
green
blue-black
21. Multiple Choice
1 minute
1 pt
The indicator used to test for the presence of starch is called