Cell Zone - Exam 5/16/23 upd - Large Biological Molecules

What is necessary for a Dehydration synthesis reaction to occur?

• A water molecule is assembled from two molecules, allowing the polymer to break into monomers.
• A water molecule is broken, allowing the molecules to combine
• A water molecule is assembled from two molecules, allowing the molecules to combine.
• A water molecule is broken, allowing the polymer to break into monomers.

Where does glucose come from?

• Plants via photosynthesis using the sun's energy.
• Cows, when they chew their cud, they make glucose in their 3rd stomach
• Stomach bacteria
• Aliens

How many covalent bonds does each hydrogen atom make?

• 1
• 2
• 3
• 4

How many covalent bonds does each oxygen atom make

• 1
• 2
• 3
• 4

When you did a dehydration synthesis reaction, which Molecule did you make?

• Hydrogen
• Oxygen
• Water
• Hydroxide

Is water polar or non polar (Hint: is it entirely symmetrical or are the bonds within the molecule skewed?)

• Polar because it is bent
• Polar because it is symmetrical
• Non-polar because it is bent
• Non-polar because it is symmetrical

Which is NOT a fundamental differences between RNA and DNA molecules?

• RNA molecules use Ribonucleotides while DNA molecules use Deoxyribonucleotides.
• RNA emply Uracil nitrogenous bases, while DNA have Thymine nitrogenous bases.
• RNA are single-stranded, while DNA is double-stranded.
• RNA molecules are much longer than DNA molecules

What is the difference between an atom and a molecule?

• A molecule forms when atoms bond into stable configurations
• An atom forms when molecules bond into stable configurations

What is the purpose of Glucose? Choose the best answer.

• To give us energy
• To make plants strong
• Glucose fuels the production of cellular energy, or ATP
• Glucose fuels the production of cellular energy, or ADP

Which chemical reaction builds Nucleic Acids? Which breaks them down?

• Hydrolysis, Dehydration synthesis
• Dehydration synthesis, Hydrolysis