Reg Bio Unit 2: Biochemistry

Open Ended

What challenges might astronauts face when eating in space?

Open Ended

Why can’t astronauts just pack regular food?

Open Ended

What clues on food labels tell us about molecules inside?

Multiple Select

Which of the following statements are true about molecular bonds?

• They hold two atoms together.

• Energy is needed to make a bond.

• Energy is released when a bond is broken.

• Molecular bonds only occur in gases.

Open Ended

Why is water considered a polar molecule?

Multiple Choice

Which of the following pairs will dissolve in each other based on their polarity?

• Water and sugar

• Water and oil

• Oil and sugar

• Oil and water

Multiple Select

Which of the following are examples of organic molecules?

• C6H12O6

• CH4

• CO2

• NH3

Open Ended

Explain the difference between organic and inorganic molecules, providing examples of each.

Multiple Choice

What does a structural formula represent?

• The arrangement of atoms in a molecule

• The number of molecules in a reaction

• The energy released in a reaction

• The color of a compound

Hotspot

These biomolecules end in -ose. They provide quick energy to the cell. Fructose, Glucose, and Lactose are examples.

Multiple Choice

What are the four major groups of organic macromolecules found in living things?

• Carbohydrates, Lipids, Proteins, Nucleic Acids

• Sugars, Fats, Enzymes, DNA

• Water, Salts, Vitamins, Minerals

• Starch, Oil, Hormones, RNA

Multiple Choice

If someone were to consume 2 servings of this food item how many grams of total fat would they consume?

• 12 g

• 6 g

• 18 g

• 24 g

Multiple Choice

If someone were to consume 1/2 of a pastry, how many carbohydrates would they be consuming?

• 18 g

• 36 g

• 72 g

• 2 g

Multiple Choice

If a person were to consume 2 pouches of pop tarts, how many grams of sugar will they consume?

• 62 g

• 31 g

• 15.5 g

• 1 g

Open Ended

Why might carbs be important before a spacewalk?

Multiple Choice

Which of the following is a simple sugar?

• Starch

• Glycogen

• Glucose

• Cellulose

Multiple Choice

Which polysaccharide is found in the exoskeleton of insects?

• Cellulose

• Chitin

• Glycogen

• Starch

Open Ended

Why do you think fats are ideal for space travel where weight matters?

Open Ended

Compare the functions of carbohydrates and lipids in terms of energy storage and usage in the human body.

Multiple Select

Which of the following are functions of nucleic acids?

• Store genetic information

• Direct protein production

• Insulate the cell

• Control cell processes

Multiple Choice

What causes proteins to have various, specific, structures?

• The sequence of amino acids

• The sequence of fatty acids

• The bonds between the monosaccharides

• The different nucleotide charges

Multiple Choice

If you change the shape of a protein, will it work the same/properly?

• Yes
• No

Multiple Choice

What is a substance called if it speeds up a chemical reaction?

• reusable
• catalyst
• specific
• fragile

Multiple Choice

With what 3 letters do enzymes typically end?

• -ose
• -ase
• -ese
• -tic

Multiple Choice

Enzymes are an example of

• Lipids

• Carbohydrate

• Protein

• Nucleic Acid

Multiple Choice

Letter D...

• active site
• enzyme
• substrate
• products

Multiple Choice

Letter C...

• active site
• enzymes
• substrate
• products

Multiple Choice

Letter B...

• active site
• enzyme
• substrate
• products

Multiple Choice

Letter E...

• active site
• enzyme
• substrate
• products

Multiple Choice

An enzyme speeds up a reaction by

• lowering the activation energy.
• raising the activation energy.
• releasing energy.
• absorbing energy.

Multiple Choice

What happens when enzymes are heated to a high temperature?

• The enzymes die.

• The shape of the enzyme are changed and it denatures

• The enzymes' amino acid sequence changes.

• The enzymes remain the same

Multiple Choice

What is the optimum temperature for this enzyme?

• 20 degrees Celsius

• 45 degrees Celsius

• 52 degrees Celsius

• 64 degrees Celsius

Hotspot

Which points on the graph does the enzyme completely denature?

Match

Match the following

• Lipids

• Proteins

• Nucleic acids

• Carbohydrates

Long term energy storage, and allow for transport of certain molecules in and out of the cell

provide structure, includes enzymes that catalyze reactions inside the cell

Store genetic information for the cell

Provides energy for cellular processes, provides structure for cell walls

• Long term energy storage, and allow for transport of certain molecules in and out of the cell

• provide structure, includes enzymes that catalyze reactions inside the cell

• Store genetic information for the cell

• Provides energy for cellular processes, provides structure for cell walls

Open Ended

What is one question you still have about how astronauts fuel their bodies in space?