Organelles
This thin and flexible layer surrounds every cell like a fence, letting some things in and out, but keeping all the important organelles inside.
What is the cell membrane?
This type of cell transports oxygen around the body.
What is a red blood cell?
These act like factories and make proteins for the cell.
What are ribosomes?
This watery fluid fills each cell and holds all the organelles in place.
What is the cytoplasm?
This type of cell makes collagen, which strengthens your bones.
What is a bone cell, or osteocyte?
This is held by the nucleus, and is like a recipe for building and keeping the living thing healthy.
This organelle holds the most important information.
What is the nucleus?
This type of cell contracts and expands when your body needs to pick something up, walk, run, jump, or do something else that is physical.
What are muscle cells?
This very important structure is protected by the bones in your spine.
What is the spinal cord?
This organelle is like a highway that transports proteins.
What is the endoplasmic reticulum?
This type of cell transmits information from parts of your body to your brain, AND from your brain to all parts of your body at a speed of 100 meters per second.
What is a nerve cell, or neuron?
This is the name for the shape of DNA.
What is the double helix?
These organelles turn sugar into energy for the cell to do its work.
What are the mitochondria?
These types of cells combine to create an embryo that can become a baby.
What are egg and sperm cells?
This is the name of the bear who won Fat Bear Week in 2025.
Who is Chunk!