cell structure, transport, energy , viruses, and biomolecules

What do disaccharides, such as sucrose, and polysaccharides, such as starch, have in common?

• They are lipids made of fatty acids.
• They are proteins made of amino acids.
• They are nucleic acids made of nucleotides.
• They are carbohydrates made of simple sugars.

Which group of organic compounds contains fatty acids?

• Carbohydrates
• Lipids
• Nucleic Acids
• Proteins

Which of the following answers links a biomolecule with one of its proper functions?

• Lipids - Store genetic information
• Carbohydrates - short term energy storage
• Nucleic Acids - Catalyze reactions
• Proteins - long term energy storage

Peptide bonds in proteins can be broken down by the enzyme peptidase. Adrian orders a hamburger and French fries for lunch. He adds cheese and mayonnaise to his hamburger and then sits down to eat lunch with his friends. Which structure would most likely result from the action of peptidase in Adrian’s stomach?

• Lipids
• Glucose
• Nucleic Acid
• Amino Acid

The molecule in the diagram plays what role in the body?

• Releasing Energy
• Forming part of the sugar-phosphate backbone of DNA
• Storing Fat
• Controlling blood glucose levels

The four most common elements found in biomolecules are:

• Carbon, Nitrogen, Phosphorus, Bromine
• Sulfur, Nitrogen, Iron, Carbon
• Sulfur, Phosphorus, Carbon, Oxygen 
• Carbon, Oxygen, Nitrogen, Hydrogen

This cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

• vacuole
• nucleus
• cell membrane
• cell wall

True or False? Passive Transport does not require energy

• true

• false

Movement of particles from high to low concentration. 

• Passive Transport
• Active Transport

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water