Hormones

A hormone is

• a chemical substance produced in large quantities by an endocrine gland.

• an enzyme produced by in minute quantities by a endocrine gland.

• a chemical substance produced in minute quantities by an exocrine gland.

• a chemical substance produced in minute quantities by an endocrine gland.

Which of the following best describes an endocrine gland?

• tissue/ organ that directly secretes hormones into bloodstream

• tissue/ organ that releases substances through a duct

• cell that directly secretes hormones into bloodstream

• cell that releases substances through a duct

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Which one here is a hormone?

• Glycogen

• Glycerol

• Glucagon

• Glucose

What kind of biomolecules are hormones?

• carbohydrates

• nucleic acids

• lipids or proteins

• proteins only

How are hormones brought to target organs?

• transported by lymph

• dissolved in plasma of blood

• transported by red blood cells

• secreted directly to target organs

What do hormones do?

• catalyze chemical reactions in cells

• alter activity of target organs

• digest larger substances into smaller ones

• carries out homeostasis

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What happens to hormones after they have carried out their functions?

• broken down by kidney

• broken down by stomach

• broken down by enzymes in blood

• broken down by liver

Which of the following gland does NOT belong to the endocrine system?

• pituitary
• testes
• salivary
• thyroid

The master gland of the body, secreting a large number of hormones that affect other glands, growth and development.

• pituitary gland

• sweat gland

• hypothalamus

• adrenal gland

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The amount of hormones released changes in response to a stimulus.

• true

• false

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