Fall Semester Exam - first 9 weeks

Front

What type of organic molecule is beeswax?

Back

Lipid

Front

What is the force that holds molecules of a single substance together?

Back

Cohesion

Front

What process can only plant cells perform?

Back

Photosynthesis

Front

What are the waxy organic substances used by aquatic birds to coat their feathers primarily made of?

Back

Lipids

Front

Where do light independent reactions (Calvin cycle) take place in the chloroplast?

Back

Stroma

Front

Define cohesion in the context of water molecules.

Back

Cohesion is the property of water that allows water molecules to stick to each other.

Front

What is the main function of lipids in biological systems?

Back

Lipids serve as energy storage, structural components of cell membranes, and signaling molecules.

Front

What is the difference between adhesion and cohesion?

Back

Adhesion is the attraction between different substances, while cohesion is the attraction between molecules of the same substance.

Front

What is the role of the stroma in photosynthesis?

Back

The stroma is the site of the light-independent reactions (Calvin cycle) where carbon fixation occurs.

Front

What are the main components of plant cell walls?

Back

Cellulose, a carbohydrate, is the main component of plant cell walls.