Circular System
Digestive System
Respiratory System
Mitosis and Meiosis
Cells
100

The main organ of the circulatory system is...

What is the heart?

100

This organ starts the digestion process by chewing food.

What is the mouth?

100

This organ is responsible for breathing and gas exchange.

What are the lungs?

100

This process produces two identical daughter cells.

What is mitosis?

100

The power house of the cell...

What is the mitochondria?


200

These blood vessels carry blood away from the heart.

What are arteries?

200

This long tube connects the mouth to the stomach.

What is the esophagus?

200

This muscle helps pull air into the lungs.

What is the diaphragm?

200

This process reduces the chromosome number by half.

What is meiosis?

200

This part of the cell controls its activities and contains DNA.

What is the nucleus?

300

These tiny vessels connect arteries and veins.

What are capillaries?

300

This organ produces bile, which helps break down fats.

What is the liver?

300

These tiny air sacs in the lungs allow for oxygen and carbon dioxide exchange.

What are alveoli?

300

During this phase of mitosis, chromosomes line up in the middle.

What is metaphase?

300

This jelly-like substance inside the cell holds organelles in place.

What is cytoplasm?

400

This component of blood helps in clotting.

What are platelets?

400

This part of the digestive system absorbs most nutrients from food.

What is the small intestine?

400

This tube carries air from the throat to the lungs.

What is the trachea?

400

This term describes cells with half the number of chromosomes.

What is haploid?

400

Plant cells have this rigid outer layer that animal cells do not.

What is the cell wall?

500

This type of circulation sends blood to the lungs to get oxygen.

What is pulmonary circulation?

500

This digestive enzyme is found in saliva and breaks down starches.

What is amylase?

500

This process is how oxygen and carbon dioxide move between alveoli and blood.

What is diffusion?

500

This phase of meiosis increases genetic variation by swapping DNA.

What is crossing over?

500

This organelle packages and ships proteins within the cell.

What is the Golgi apparatus?