U7E3 Quiz: Interacting Systems in Organisms

What do organ systems consist of?

• A single organ

• Two or more organs

• A group of cells

• A single tissue

What is the role of gastric juice in the stomach?

• To absorb nutrients

• To break down food into nutrients

• To transport food to the small intestine

• To excrete waste

What is the final step in the digestive process?

• Chewing food

• Absorbing nutrients in the small intestine

• Excreting solid waste

• Breaking down food in the stomach

How do muscles in the esophagus contribute to digestion?

• By breaking down food chemically

• By absorbing nutrients

• By contracting to move food to the stomach

• By secreting enzymes

What is the role of connective tissue?

• Provides protective lining

• Supports, binds together, and protects other tissues and organs

• Contracts for movement

• Transmits impulses

What property does the connective tissue surrounding blood vessels have?

• Rigidity

• Elasticity

• Fragility

• Transparency

Where is cardiac muscle found?

• In the digestive system

• In the heart

• In the skeletal system

• In the respiratory system

What is the smallest unit of the muscle cell?

• Myofibril

• Sarcomere

• Actin

• Myosin

What do several sarcomeres come together to make?

• Myosin

• Actin

• Myofibrils

• Neurons

Evaluate the importance of the digestive system in providing energy to the body.

• The digestive system is not involved in energy production.

• The digestive system breaks down food into nutrients, which are then used by cells to produce energy.

• The digestive system stores energy for future use.

• The digestive system transports oxygen to cells for energy production.