ข้อสอบระบบย่อยอาหาร

Which organ in the human digestive system produces the enzyme amylase to digest starch?

• Stomach

• Small intestine

• Liver

• Salivary glands

The stomach of ruminant animals, such as cows, has 4 chambers. Which organ is responsible for mechanical digestion by fermenting and circulating food?

• Rumen

• Reticulum

• Omasum

• Abomasum

What type of nutrients does the enzyme pepsin in the human stomach digest?

• Carbohydrates

• Proteins

• Fats

• Vitamins

If the sublingual gland is removed, which type of food digestion will be most affected?

• Protein

• Carbohydrate

• Fat

• Minerals

Which animal has a digestive system designed to efficiently digest cellulose?

• Dog

• Rabbit

• Tiger

• Parrot

If a student experiments by dropping iodine onto food and observes that the color does not change, what type of nutrient is absent in this food?

• Protein

• Complex carbohydrates

• Fat

• Monosaccharides

If a human lacks lipase enzyme from the pancreas, what effect will it have on the body?

• Cannot digest starch

• Cannot digest fats well

• Proteins cannot be absorbed

• Water absorption is imbalanced

Why do some herbivorous animals, such as horses or rabbits, need to eat their own feces?

• To aid in re-digestion and complete nutrient absorption

• To maintain water balance in the body

• To prevent pests in the digestive tract

• To stimulate the production of protein-digesting enzymes

Which of the following animals does not have a complete digestive system?

• Earthworm

• Tapeworm

• Octopus

• Grasshopper

Scientists have found that a certain marine animal can digest proteins even in the absence of stomach enzymes. What could be the reason for this?

• There are microorganisms that help digest proteins in the intestines

• There are special enzymes in the saliva that can work in a neutral environment

• It uses a method to directly absorb protein molecules

• There are strong acids in the intestines that can break down proteins on their own