🔬 Cells
This organelle is responsible for protein synthesis.
What is a ribosome?
The organs that produce sperm cells.
What are the testes?
The gas we breathe in and need for respiration.
What is oxygen?
The cells that carry messages around the body.
What are neurons?
This organ uses about 20% of your body's energy even though it is only about 2% of your body weight.
What is the brain?
A group of similar cells working together to perform the same function.
What is a tissue?
This process happens when pollen is transferred from anther to stigma, allowing fertilization to occur.
What is pollination?
This tube carries air from your mouth and nose down to your lungs.
What is the trachea?
This part of the nervous system connects the brain to the rest of the body.
What is the spinal cord?
These cells help you see color.
What are cones?
This English scientist used a microscope to observe cork and was the first to name the tiny compartments he saw "cells."
Who is Robert Hooke?
This part of the stamen produces pollen.
What is the anther?
Tiny air sacs where gas exchange happens.
What are alveoli?
A rapid automatic response to a stimulus.
What is a spinal reflex?
The largest organ in the human body.
What is the skin?
The movement of water through a partially permeable membrane.
What is osmosis?
The single cell formed after fertilization.
What is a zygote?
The muscle below the lungs that helps you breathe.
What is the diaphragm?
The spiral-shaped part of the inner ear helps you hear by turning vibrations into signals.
What is the cochlea?
You are born with about 270 of these, but adults only have 206.
What are bones?
List the organelles present in a plant cell.
This happens because the egg was not fertilized, so the thick lining of the uterus is no longer needed.
What is menstruation?
The total surface area of all alveoli in your lungs is roughly the size of this.
What is a tennis court (70 m²)?
The layer at the back of your eye contains photoreceptors that detect light.
What is the retina?
A sperm cell is made to swim to the egg. Name two things about it that help it move and reach the egg.