Ls7-Digestive System

What is the main function of the digestive system?

• To regulate body temperature.

• To break down food and absorb nutrients.

• To filter toxins from the blood.

• To store energy for the body.

Tags

NGSS.MS-LS2-3

Where does mechanical digestion begin?

• Mouth

• Small intestine

• Stomach

• Esophagus

What organ releases bile for fat digestion?

• Pancreas

• Stomach

• Liver

• Gallbladder

What is the site of chemical digestion?

• Mouth

• Large intestine

• Stomach and small intestine

• Esophagus

What enzyme is secreted by the salivary glands?

• Amylase

• Lipase

• Lactase

• Protease

Tags

NGSS.MS-LS1-7

What layer of the gastrointestinal tract contains blood vessels and nerves?

• Submucosa

• Muscularis

• Mucosa

• Serosa

What stomach enzyme begins protein digestion?

• pepsin

• amylase

• lactase

• lipase

Tags

NGSS.MS-LS1-7

What small intestine section absorbs nutrients into the bloodstream?

• stomach

• ileum

• duodenum

• jejunum

What accessory organ produces digestive enzymes?

• Liver

• Stomach

• Gallbladder

• Pancreas

What is the primary function of the large intestine?

• To store nutrients for energy.

• To produce bile for digestion.

• To filter toxins from the blood.

• The primary function of the large intestine is to absorb water and electrolytes.