2nd Q Summative Test (Science) 1-50

After eating pancit during a fiesta, the food enters your mouth. Which process helps break it down into smaller pieces before swallowing?

• Absorption

• Chewing

• Digestion in the stomach

• Elimination

Juan noticed he swallowed a large piece of rice without chewing properly. Which organ first receives this rice after passing through the mouth?

• Esophagus

• Large intestine

• Small intestine

• Stomach

If the small intestine did not work properly, what might happen to the nutrients from the vegetables and fish you eat?

• They would be absorbed more in the mouth.

• They would still be absorbed through chewing.

• They would stay in the stomach and not reach the blood.

• They would be carried to the large intestine for absorption.

Imagine a child eats champorado but drinks very little water. How might this affect the large intestine’s function?

• It will stop absorbing nutrients.

• It will not release waste through the anus.

• It will digest the champorado more quickly.

• It will find it harder to absorb water, possibly causing constipation.

A doctor explains to Maria that stomach acid is important. Why is stomach acid necessary in the digestive process?

• It absorbs water to prevent dehydration.

• It pushes the food into the large intestine.

• It stores food until the body needs energy.

• It breaks down food chemically into smaller molecules.

During a barrio fiesta, Liza eats fried chicken and vegetables. After digestion in the stomach, where does the food go next for further breakdown and absorption of nutrients?

• Esophagus

• Large intestine

• Mouth

• Small intestine

If the esophagus is blocked, what will most likely happen when a person eats food?

• Food cannot move down to the stomach.

• Chewing will complete the whole process.

• The large intestine will take over digestion.

• Nutrients will still be absorbed by the small intestine.

Ana is jogging early in the morning. Which part of her respiratory system first filters the air she breathes in?

• Bronchi

• Lungs

• Nose

• Trachea

During flag ceremony, Carlo takes a deep breath. What happens to his diaphragm as he inhales?

• It relaxes and moves downward, forcing air inside.

• It relaxes and moves upward, making the lungs expand.

• It contracts and moves upward, pushing air out of lungs.

• It contracts and moves downward, allowing lungs to expand.

When John accidentally inhales dust while cleaning their house, which part of the respiratory system helps trap the dust to prevent it from reaching the lungs?

• Alveoli

• Diaphragm

• Nose

• Trachea (windpipe)