Chemistry Middle School

During digestion, what happens in the stomach?


A. All food molecules are broken down into smaller molecules by chemical reactions.

B. Some types of food molecules are broken down into smaller molecules by chemical reactions.

C. Water in the food passes into the blood and travels to other organs where it is used.

D. Food passes into the blood and travels to other organs where it is used in various reactions.

Answers

Answer 1

Answer:

A

Explanation:

Food is digested in the stomach for several hours. During this time, a stomach enzyme called pepsin breaks down most of the protein in the food. The pancreas and gland cells of the small intestine secrete digestive enzymes that chemically break down complex food molecules into simpler ones.

Answer 2

Answer:

A

Explanation:

Related Questions

Without food, what happens to an animal?

A. The cells of the animal cannot work properly, and the animal eventually dies.
B. The cells of the animal can work properly, but the animal reacts very slowly.
C. The cells of the animal can work properly, but the body cannot grow.
D. The cells of the animal cannot work properly, and the animal becomes stationary to produce food from the sun.

Answers

B the cells of the animal can work properly but the animal reacts very slowly

Answer: B. The cells of the animal can work properly, but the animal reacts very slowly.

Explanation:

The speed at which a nitrogen molecule’s particles are moving increases. What will happen to the thermal energy of this molecule?

A) The thermal energy of the molecule will increase.
B) The thermal energy of the molecule will not change, but its mass will change.
C) The thermal energy of the molecule will not change, and its mass will remain the same.
D) The thermal energy of the molecule will decrease.

Answers

Answer

The thermal energy of the molecule will increase.

Explanation:

Increasing the speed at which the particles are moving cause atoms and molecules to move faster and collide with each other. This increases the thermal energy.

During digestion, proteins start breaking down into small molecules in the stomach.
How does the stomach digest proteins?

A. by making them very cold, and squeezing.
B. by mixing them with various chemicals, and churning
C. by making them very hot, and squeezing
D. by mixing them with water, and churning

Answers

B by mixing them in various chemicals, and churning
B because of stomach acids

Please draw a diagram of how a magnetic field works around a magnet. Please label.

Answers

This is the best picture I can find

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