Cells
Parts of Cells
Circulatory System
Respiratory System
Digestive Systems
100

This tool is used to see things that are very small

microscope

100

What is the control center of the cell?

nucleus

100

What organ pumps blood around the body?

Heart

100

What organ do humans use to breathe?

Lungs

100

Where does digestion begin?

Mouth

200

What is the smallest living part of any living thing called?

A cell.

200

What is the jellylike fluid that surrounds the nucleus and other parts of the cell?

cytoplasm

200

What type of blood vessel carries blood away from the heart?

Arteries

200

What tube connects the mouth to the lungs?

Trachea
200

What organ produces bile?

Liver
300

How are organisms categorized based on the number of cells?

Unicellular and Multicellular.

300

The power house of the cell is called_____________.

Mitochondria.

300

What is the name of the largest artery in the body?

Aorta

300

Where does gas exchange occur in the lungs?

Alveoli

300

What is the main site of nutrient absorption?

Small Intestine

400

Are cars made up of cells?

No.

400

A plant cell has both a cell membrane and also a still layer called a _____.

cell wall

400

What is the name of the smallest blood vessel, where exchange occurs?

Capillaries

400

What gas is taken in during inhalation?

Oxygen

400

What organ stores and releases bile?

Gallbladder

500

Can cells divide?

Yes, they can divide.

500

What is the main difference between an animal cell and a plant cell?

A plant cell has a cell wall and chloroplasts, but an animal cell does not have both.

500

Which chamber of the heart receives oxygenated blood from the lungs?

Left Atrium

500

What muscle contracts to allow inhalation?

Diaphragm

500

What is the name of the specialised hair-like tissue in the small intestine which improves rate of absorption?

Villi