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Animal Physiology Quiz

#1

Which of the following is NOT a function of the liver in animals?

Digestion
Explanation

The liver's primary functions include detoxification, nutrient storage, and bile production, but it does not participate in digestion.

#2

What is the main function of red blood cells?

Transporting oxygen
Explanation

Red blood cells specialize in carrying oxygen from the lungs to the rest of the body and transporting carbon dioxide back to the lungs for exhalation.

#3

What is the main function of the respiratory system in animals?

Gas exchange
Explanation

The respiratory system facilitates the exchange of oxygen and carbon dioxide between the air and the blood, supporting cellular respiration.

#4

Which enzyme is responsible for breaking down proteins in the stomach?

Pepsin
Explanation

Pepsin is a gastric enzyme that plays a key role in breaking down proteins into smaller peptides during the digestive process in the stomach.

#5

What is the main function of the pancreas in animal physiology?

Producing insulin
Explanation

The pancreas produces insulin, a hormone that regulates blood sugar levels and facilitates the storage and utilization of glucose by cells.

#6

Where does the majority of nutrient absorption take place in the digestive system of mammals?

Small intestine
Explanation

The small intestine is the primary site for absorbing nutrients such as sugars, amino acids, and fatty acids during digestion.

#7

Which hormone is responsible for regulating blood sugar levels in animals?

Insulin
Explanation

Insulin is produced by the pancreas and regulates blood sugar levels by facilitating the uptake of glucose into cells.

#8

What is the primary function of the hypothalamus in animal physiology?

Regulating body temperature
Explanation

The hypothalamus acts as the body's thermostat, controlling temperature, hunger, thirst, and other autonomic functions.

#9

Which organ in birds is responsible for the production of eggshells?

Oviduct
Explanation

The oviduct is the reproductive organ in birds responsible for the formation of eggshells around developing eggs.

#10

What is the role of the adrenal gland in animal physiology?

Producing adrenaline
Explanation

The adrenal glands release hormones, including adrenaline (epinephrine), which play a crucial role in the body's response to stress, increasing heart rate and energy availability.

#11

What is the role of the nephron in animal physiology?

Excretion
Explanation

Nephrons, found in the kidneys, play a crucial role in filtering blood, removing waste products, and maintaining fluid and electrolyte balance through urine production.

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