SCIENCE 5 PART 1

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

• Small intestine
  
  

• Large intestine
  
  

• Esophagus
  
  

• Stomach

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

• It breaks down food chemically into smaller molecules.

• It stores food until the body needs energy.
  
  

• It pushes the food into the large intestine.
  
  

• It absorbs water to prevent dehydration.

Prince is jogging early in the morning. Which part of his respiratory system first filters the air he breathes in?

• A. Nose
  
  

• B. Trachea

• C. Lungs

• D. Diaphragm

During a barangay fire drill, the teacher reminds the pupils to cover their nose and mouth with a wet cloth when there is smoke. Why is this important?

• To avoid inhaling harmful gases and protect the lungs.

• To keep the lungs from expanding too much.

• To prevent the diaphragm from contracting.
  
  

• To trap oxygen and keep it inside the cloth.

Which part of the female reproductive system is responsible for producing egg cells?

•  Uterus

• Ovary

• Vagina

• Fallopian tube

Why is the uterus important in human reproduction?

• It produces sperm for fertilization.
  
  

• It filters blood before pregnancy begins.
  
  

• It serves as the canal for the baby’s birth.
  
  

• 6. Why is the uterus important in human reproduction?
  A. It produces sperm for fertilization.
  B. It filters blood before pregnancy begins.
  C. It serves as the canal for the baby’s birth.
  D. It is where a fertilized egg grows and develops into a baby.

  7. Which organ in the male reproductive system produces sperm and male hormones like testosterone?
  
  

  A. Prostate
  B. Urethra

  C. Testes
  D. Penis
  
  

   

Which organ in the male reproductive system produces sperm and male hormones like testosterone?

• Prostate

• Urethra

• Testes
  
  

• Penis

The prostate gland is part of the male reproductive system. Why is it important?

• It produces fluid that helps nourish and protect sperm.

• It carries urine out of the male body.
  
  

• It connects the testes to the penis.
  
  

• It stores sperm until fertilization.

Which of the following best describes the role of both male and female reproductive systems?

• To work together to create life. 

• To produce hormones only.

• . To help in circulation .

• To help in digestion.

Which of these animals looks like its parent animal when it is born?

• 
• 
• 
•