Organic Compounds and Transport

Identify the Organic Compound: Which organic compound is used primarily for long-term energy storage?

• Carbohydrates

• Proteins

• Lipids

• Nucleic Acids

Identify the Organic Compound: What organic compound is responsible for speeding up chemical reactions in the body?

• Carbohydrates

• Proteins

• Lipids

• Enzymes

Understanding Transport: What is the difference between active and passive transport? Provide an example of each.

• Active transport requires energy, while passive transport does not. Example of active transport: sodium-potassium pump; example of passive transport: diffusion.

• Active transport does not require energy, while passive transport does. Example of active transport: diffusion; example of passive transport: sodium-potassium pump.

• Both active and passive transport require energy. Example of active transport: osmosis; example of passive transport: endocytosis.

• Neither active nor passive transport requires energy. Example of active transport: facilitated diffusion; example of passive transport: exocytosis.

Understanding Transport: The sodium-potassium pump requires energy to function because:

• It moves ions against their concentration gradient.

• It moves ions along their concentration gradient.

• It does not involve any ion movement.

• It is a passive transport mechanism.

Organelles in Action: Which organelle is known as the powerhouse of the cell?

• Nucleus

• Mitochondria

• Ribosome

• Chloroplast

The role of lysosomes in the cell is to:

• Digest and remove waste

• Produce energy

• Synthesize proteins

• Store genetic information

A cell would use a lysosome in which of the following situations?

• To synthesize proteins

• To break down waste materials

• To transport oxygen

• To replicate DNA

Which organic compound is used primarily for long-term energy storage?

• Carbohydrates

• Proteins

• Lipids

• Nucleic acids

What organic compound is responsible for speeding up chemical reactions in the body?

• Carbohydrates

• Proteins

• Enzymes

• Lipids

What is the difference between active and passive transport? Provide an example of each.

• Active transport requires energy, while passive transport does not. An example of active transport is the sodium-potassium pump, and an example of passive transport is diffusion.

• Active transport does not require energy, while passive transport does. An example of active transport is diffusion, and an example of passive transport is the sodium-potassium pump.

• Both active and passive transport require energy. An example of both is osmosis.

• Neither active nor passive transport requires energy. An example of both is facilitated diffusion.