Cells & Organelles
He was the first scientist to observe cork cells.
Who is Robert Hooke?
This enzyme in saliva starts breaking down starches.
What is amylase?
The simple sugar that fuels respiration.
What is glucose?
These male organs produce sperm and testosterone.
What are testes?
The organelle that controls cell activities by storing DNA.
What is the nucleus?
This cell structure is called the “powerhouse of the cell.”
What is the mitochondrion?
The stomach uses this enzyme to break down proteins.
What is pepsin?
Respiration without oxygen is called this.
What is anaerobic respiration?
Fertilization usually takes place in this female structure.
What is the fallopian tube (oviduct)?
The soupy liquid formed after the stomach digests solids.
What is chyme?
Plant cells differ from animal cells because they have these three things.
What are a cell wall, chloroplasts, and a large vacuole?
Most nutrient absorption occurs in this organ
What is the small intestine?
This stage of aerobic respiration produces the most ATP.
What is the electron transport chain?
The developing baby is called this once organs begin to appear.
What is a fetus?
This scientist discovered the Krebs cycle.
Who is Hans Krebs?
These small structures are the site of protein synthesis.
What are ribosomes?
The liver produces this substance to break down fats.
What is bile?
Lactic acid fermentation in humans happens in this type of tissue.
What are muscles?
This organ provides nutrients and oxygen to the fetus.
What is the placenta?
The hormone produced by ovaries that regulates the female cycle.
What is estrogen (or progesterone)?
This part of the plant cell gives it structure and support and is made of cellulose.
What is the cell wall?
This muscular movement pushes food through the digestive tract.
What is peristalsis?
The net ATP gain from one glucose molecule in aerobic respiration.
What is 36 ATP?
The process where embryonic cells specialize into different types.
What is differentiation?
Name the correct order of biological organization: cell → tissue → organ → ___ → organism.
What is organ system?