Skeletal system
The human skeleton has this many bones in adulthood.
206
This organ pumps blood throughout the body.
Heart
These organs are where gas exchange happens in the body.
The lungs
This organelle is the control center of the cell.
Nucleus
DNA stands for this.
deoxyribonucleic acid
These types of joints allow for back-and-forth motion, like in the knees and elbows.
hinge joints
These blood vessels carry blood away from the heart.
Arteries
The muscle that helps pull air into the lungs.
The diaphragm
This organelle is responsible for making energy in the form of ATP.
mitochondrion
The shape of DNA is called this.
double helix
This tissue found at the ends of bones reduces friction at joints
Cartilage
These cells help fight infections in the blood.
White bloodcells
These tiny sacs in the lungs allow oxygen and carbon dioxide to be exchanged.
The alveoli
These are the “factories” that make proteins.
Ribosomes
What is the complementary DNA strand for this sequence:
5'-A T G C C A T G A-3'?
T A C G G T A C T
This is the strong, dense outer layer of bone.
compact bone
This part of the heart separates oxygen-rich blood from oxygen-poor blood.
The septum
This tube, also called the windpipe, connects the throat to the lungs.
Trachea
This organelle helps package and ship proteins.
Golgi apparatus
This base is found in RNA but not in DNA
Uracil
This type of bone marrow produces red blood cells, white blood cells, and platelets.
Red bone marrow
This is the iron-rich protein in red blood cells that carries oxygen.
Hemoglobin
This structure covers the trachea during swallowing to prevent food from entering.
epiglottis
This organelle contains digestive enzymes to break down waste.
Lysosome
This process copies DNA into RNA
Transcription