Respiratory system
What gas do we inhale from the air that is crucial for cellular respiration?
Oxygen
Put the words in order
snake-bird-grass-grasshopper
Grass-grasshopper-bird-snake
What molecule carries genetic information in living organisms?
DNA
What is the basic unit of life called?
cell
What is the name of the tube that carries air from the throat to the lungs.
The trachea
What do we call the non-living components of an ecosystem, such as water, sunlight, and minerals?
Abiotic factors
What is the fluid-filled gel-like substance inside a cell called?
Cytoplasm
What are the main functions of the cell membrane?
The cell membrane controls what enters and exits the cell and provides protection and support.
Which muscle helps you breathe by contracting and relaxing to change the volume of the chest cavity?
The diaphragm
What do you call a plant that gets its energy from the sun?
A producer
Which part of the cell contains the genetic material?
The nucleus
How do plant cells differ from animal cells?
Plant cells have a cell wall and chloroplasts, while animal cells do not.
What are the tiny air sacs in the lungs where gas exchange occurs?
The alveoli
What is the name for the process by which plants use sunlight to make their food?
Photosynthesis
Which organelle is known as the powerhouse of the cell?
The mitochondrion
Compare the functions of the nucleus and mitochondria in a cell.
The nucleus contains the cell's genetic material and controls cell activities, while the mitochondria are responsible for producing energy through cellular respiration.