Metabolism
Respiration & cirkulation
Osmoregulation & kidneys
Digestion
Endocrinology & reproduction
100

This molecule is the final electron acceptor in the electron transport chain.

What is oxygen (O2)?

100

This law states that total pressure equals the sum of partial pressures of each gas.

What is Dalton's law?

100

These animals maintain a constant internal osmotic pressure even when the environment changes. 

What is osmoregulators?

100

This enzyme breaks down proteins in the stomach. 

What is pepsin?

100

This hormone from the anterior pituitary stimulates Leydig cells to produce testosterone. 

What is LH (luteinizing hormone)?

200

This process occurs in the cytosol and breaks down glucose into pyruvate with a net gain of 2 ATP. 

What is glycolysis?

200

This curve shows the relationship between PO2 and hemoglobin saturation. 

What is the oxygen dissociation curve?

200

This process in the kidney forms the initial filtrate from blood plasma. 

What is glomerular filtration?

200

These molecules emulsify fats before digestion by lipase.

What are bile salts?

200

This hormone from Sertoli cells can inhibits FSH release. 

What is inhibin?

300

This type of ATP production uses energy from electron transport and a proton gradient. 

What is oxidative phosphorylation?

300

In capillaries, this force pushes fluid out, while oncotic pressure draws fluid in.

What are Starling force (hydrostatic and osmotic pressures)?

300

This mechanism in the loop of Henle helps produce concentrated urine. 

What is countercurrent multiplication?

300

Fermentation produces short-chain fatty acids used as an energy source in herbivores. 

What are volatile fatty acids (VFAs)?

300

The full name of the hormone axis regulating stress and cortisol production. 

What is the HPA axis (hypothalamic-pituitary-adrenal)?

400

The total number of ATP molecules produced per glucose molecule during aerobic respiration.

What is 29-32 ATP?

400

An increase in CO2, H+, or temperature shifts the O2 dissociation curve to the right.

What is the Bohr effect?

400

This hormone increases water reabsorption in the kidney by inserting aquaporins in the collecting ducts. 

What is ADH (antidiuretic hormone)?

400

The three major digestive enzymes for carbohydrates. 

What are amylase, maltase and sucrase?

400

The peptide hormone lowers blood glucose by stimulating cellular glucose uptake. 

What is insulin?

500

The end product of anaerobic glycolysis in animals. 

What is lactate?

500

Insects use this system for direct gas transport to tissues without involving blood.

What is the tracheal system?

500

This hormone system increases blood pressure by vasoconstriction and Na+ retention. 

What is the RAAS (renin-angiotensin-aldosterone system-m)?

500

"Form follows function" best describes this adaptive feature in animals related to food intake. 

What is feeding structure diversity?

500

This hormone increases Na+ reabsorption and K+ excretion, raising blood pressure. 

What is aldosterone?