chp 2 Chemistry and cells

Which element is found in all organic compounds?

• Calcium

• Chromium

• Sulfur

• Carbon

Which of the big 4 is used for long-term energy storage, insulation, and protection? 

• Lipids
• Proteins
• Nucleic acid
• Carbohydrates

Fats are specialized lipid molecules, and enzymes are specialized protein molecules. How do
the functions of fats and enzymes differ?

• Fats are structural building materials, while enzymes are transportation molecules.
• Fats provide support for cells, while enzymes lower the pH of gastric fluids.
• Fats regulate body functions, while enzymes denature invasive bacteria.
• Fats are storage molecules, while enzymes are catalytic molecules.

The major macromolecules of life are:

• lipids, proteins, carbohydrates, nucleic acids
• nucleic acid and water
• lipids and fats
• DNA

What is the function of ATP in living things?

• provides energy for cells
• stores genetic information
• provides structure in the nucleus

Tags

NGSS.HS-LS1-7

Energy is released from ATP when

• a phosphate group is added
• adenine bonds to ribose
• ATP is exposed to sunlight
• a phosphate group is removed

Tags

NGSS.HS-PS1-4

What organelle does ATP process happen.

• Mitochondria

• Nucleus

• Lysosomes

• Ribosomes

Tags

NGSS.HS-LS1-7

The type of cellular transport that requires no energy.

• Active Transport
• Protein Pumps
• Passive Transport
• Endocytosis

Which of the following modes of cellular transport does NOT require energy?

• Facilitated Diffusion
• Protein Pumps
• Endocytosis
• Exocytosis

A cell with a 5% salt solution is placed into a beaker with a 10% salt solution.  What will happen to the cell?

• It will shrink
• It will swell
• No change
• Cytolysis

Tags

NGSS.HS-LS1-3