Hormones

Insulin causes

• a decrease in the concentration of blood glucose
• a decrease in the permeability of cell membranes to glucose
• an increase in the production of glucose from glycogen
• none of these is correct

What gland secrete hormones directly into the bloodstream ?

• pineal gland

• Exocrine gland

• Endocrine gland

• Pituitary gland

What is released if glucose levels are too low?

• Insulin

• Glucagon

• Amylase

• Pepsin

In what form is carbohydrate stored in the liver?

• Glucose
• Starch
• Glycogen
• Glucagon

What is glucagon's major role in the body?

• to raise blood sugar
• to lower blood sugar
• to receive signals from the pituitary

A hormone is

• a chemical substance produced by a gland and carried by the lymph.

• an enzyme produced by a gland and carried by the blood.

• a chemical substance produced by an organ and carried by the blood.

• a chemical substance produced by a gland and carried by the blood.

Which one here reduces the amount of glucose in the blood?

• Glucagon

• Insulin

• Glycogen

• ADH

What is one difference between steroid & protein hormones?

• Steroids are made from cholesterols, while proteins are made from carbohydrates
• Steroids are made from carbohydrates, while proteins are made from amino acids
• Steroids can cross cell membranes, but proteins cannot
• Proteins can cross cell membranes, but steroids cannot

What is the difference between nervous & endocrine communication?

• Endocrine takes longer, but lasts longer than nervous
• Nervous takes longer, but lasts longer than endocrine
• Both nervous & endocrine use neurotransmitter molecules
• Neither type use molecules to communicate

How do hormones ensure that they travel to and communicate with the correct cells/tissues?

• Hormones travel between the synapses of neurons and communicate with the tissues

• Hormones travel throughout the bloodstream and only communicate with the tissues that have the correct receptors

• hormones travel throughout the bloodstream and communicate with all the cells they come in contact with

• Hormones travel throughout all the tissues of the body and are not specific