Body Systems
This organ is responsible for pumping blood throughout the body.
This is the powerhouse of the cell.
Mitochondria
This organ is responsible for filtering waste from the blood and producing urine.
Kidney
This vitamin, found in citrus fruits, helps prevent scurvy.
Vitamin C
This is the only organ in the human body that can regenerate itself.
The Liver
All living things are made up of one or more of these.
Cells
This is the chemical symbol for gold.
Au
The skeletal system provides structure and support. This mineral is most important for bone strength.
Calcium
The double-helix structure of DNA was first described by these two scientists.
Watson and Crick
This muscular organ is responsible for churning food in digestion.
Stomach
A person with Type O blood is a universal donor. A person with this blood type is a universal recipient.
Type AB
A person’s eye color is determined by the amount of this pigment in the iris
The control center of a cell, which contains DNA, is called this.
Nucleus
This planet is known as the “Red Planet.
Mars
The small intestine absorbs nutrients, while this large organ detoxifies blood and produces bile.
The Liver
Humans have 23 pairs of these structures in the nucleus, carrying genetic information.
Chromosomes
The pancreas produces this hormone to help regulate blood sugar.
Insulin
The body’s “fight or flight” response is triggered by this hormone.
Adrenaline
These two parts of the body contains more than half of all your bones.
Hands and feet
This organelle is known as the "powerhouse of the cell" because it produces energy
Mitochondria
The speed of light is approximately this many kilometers per second.
300,000 km/s
These microscopic air sacs in the lungs are where oxygen exchange occurs.
Alveoli
In genetic inheritance, a dominant allele is represented by this type of letter.
Uppercase letter
This organ is sometimes called the "body's control center."
Brain
The average adult human body is made up of approximately this percentage of water.
60%
Some people have an extra small hole near their ear, a vestige of ancient gill slits. What is this called?
Preauricular sinus
Plant cells have this structure that provides support, but animal cells do not
Cell wall
This gas makes up about 78% of Earth's atmosphere.
Nitrogen
This nerve, the longest in the human body, runs from the lower back down the leg.
Sciatic Nerve
This rare genetic disorder causes people to age extremely rapidly.
Progeria
The spleen is part of this system, which helps fight infections.
Immune system
The condition where the body doesn’t produce enough insulin, leading to high blood sugar, is called this.
Diabetes
This condition causes a person to see sound or taste colors
Synesthesia
This organelle is responsible for packaging and transporting proteins inside the cell
Golgi apparatus (Golgi body)
The first successful human organ transplant was of this organ in 1954.
Kidney