WorksheetsChemistry Review & Macromolecules
Total questions: 20
Worksheet time: 11mins
Identify the elements that make up the molecules found in all living organisms. Click on the answers that are correct.
Carbon
Hydrogen
Oxygen
Nitrogen
All are correct
Li+ is a cation and F- is an anion. When bonded together they form what type of chemical bond?
Covalent
Ionic
Metallic
None are correct
CHON are non-metals that when connected form what type of chemical bond(s)?
Covalent
Ionic
Metallic
None are correct
When identifying an element on the Periodic Table, the PERIOD refers to the
Column or # of valence electrons
Row or # of electron orbitals surrounding the nucleus
Both are correct
None are correct
When identifying an element on the Periodic Table, the GROUP refers to the
Column or # of valence electrons
Row or # of electron orbitals surrounding the nucleus
Both are correct
None are correct
Look at the diagram. Which type of chemical reaction would represent "breaking of bonds" and releasing of energy:
Synthesis
Decomposition
Single Replacement
Double Replacement
Look at the diagram. Which type of chemical reaction would represent "forming of bonds" and absorption of energy:
Synthesis
Decomposition
Single Replacement
Double Replacement
Refer to the diagram. CELLULAR RESPIRATION is considered to be
endothermic (endo = bring in)
exothermic (exo = release or exit)
Both
Neither
Which properties of H2O makes this molecule an important universal solvent (able to to dissolve substances to form a solution):
having + and - ends
having polar bonds (unequal pull due to + and - ends)
having ability to form hydrogen bonds
All are correct
Refer to the diagram. What can be concluded regarding the amount of energy needed to break the single bonds of water molecules and/or elements within a molecule?
Intramolecular forces that bond elements in a water molecule require 415 kJ/mol per bond to break
Intramolecular forces that bond hydrogen & oxygen total 830 KJ/mol for 1 molecule of water to break
Intermolecular forces that bond water molecules together require 41KJ/mol to break
All are correct
Refer to the picture. Identify the MACROMOLECULE
Carbohydrate
Protein
Lipid
Nucleic Acid
Refer to the picture. Identify the MACROMOLECULE
Carbohydrate
Protein
Lipid
Nucleic Acid
Refer to the picture. Identify the MACROMOLECULE
Carbohydrate
Protein
Lipid
Nucleic Acid
Refer to the picture. Identify the MACROMOLECULE
Carbohydrate
Protein
Lipid
Nucleic Acid
At the crime scene an unknown substance was discovered by the investigative unit. The suspect was seen drinking a Sprite (with sugar) on camera near the crime scene. Forensics ran a macromolecule test for simple sugars. Identify the correct statements that would support evidence for a conviction:
Benedict reagent was used and the unknown substance turned bright yellow-orange to prove "simple sugars" are present.
Biuret reagent was used and the unknown substance turned purple to prove "proteins" are present.
Iodine reagent was used and the unknown substance turned purple-black to prove "complex carbohydrates" are present.
None are correct
A pair of new Holomua slippers of an employee was reported missing from the Break Room at Town & Country Surf shop. The slippers were found near the restroom after an announcement had been made reporting the missing item. On the slippers they discovered dried food. Forensics ran a macromolecule test and the results were documented. According to the results what conclusion can be made about who the possible suspect could have been
Jimmy
Ashley
Kate
Brent
Which statement is correct based on the results in the chart
Ashley could not be the suspect because the evidence showed a positive for both starch and lipids.
Kate could not be the suspect because the evidence showed a positive for protein.
Brent could not be the suspect because the evidence showed a negative for glucose and a positive for both protein and lipid.
All are correct
After further review of the DATA & evidence collected. It had been discovered that Kate lied about what she ate for lunch that day. Her lunch was actually a peanut butter rolled burrito. What other macromolecule should have tested positive?
Glucose
Starch
Protein
Lipid
Refer to the diagram. A student ran the starch, protein & lipid macromolecule tests. However, in A2 the solution turned a hazy shade of light purple. What can be concluded from this result?
Oil was added to A2.
Sugar was added to A2.
The wells were not cleaned correctly.
None are correct.
Identify the correct statement(s) based on the Nutrition Label.
Food item would test positive for simple & complex carbohydrates.
Food item would test positive (lavender-purple) when Biuret is added.
Food item would test positive for lipids (red droplets form) when Sudan is added.
All are correct.
