Science Quiz bee Grade 9

The circulatory system’s main function is to transport gases and nutrients to the different parts of the body. All of the following structures are components of the circulatory system EXCEPT

• Blood

• blood vessels

• lungs

• heart

Respiratory tracts are composed of organs where air flows through the body. Which of the following parts have a role in respiration but is NOT part of the respiratory tract?

• diaphragm

• bronchioles

• trachea

• nasal cavities

Where does gas exchange of oxygen and carbon dioxide takes place in the lungs?

• Bronchioles

• alveoli

• trachea

• larynx

The air we breathe goes through the nose, nasal passages, and through the trachea. What is the other name of the trachea?

• voicebox

• air sacs

• windpipe

• pharynx

Blood vessel carries blood throughout the body. Which one carries oxygenated blood away from the heart?

• Veins

• Capillaries

• Arteries

• Plasma

Which one pumps blood throughout the body

• Heart

• Lungs

• Liver

• Arteries

It is the organ involved in the respiratory system

• heart

• lungs

• liver

• nose

Plants are very unique among other organisms due to their capability to trap sunlight and make their own food. Which of the following enables plants to trap energy from the sun?

• Epidermis

• Chloroplast

• Cuticle

• Chlorophyll

Oxygen and carbon dioxide are gases that cycle out in the ecosystem. Which of the following gases is important to photosynthesis?

• ozone gas

• water vapor

• oxygen

• carbon dioxide

Which of the following is the powerhouse of the cell?

• chloroplast

• mitochondrion

• endoplasmic reticulum

• nucleus