Homeostasis and Hormones

The two types of feedback systems that help organisms maintain homeostasis are:

• positive and negative 
• receptor and effector
• static and dynamic
• minor and major

Tags

NGSS.HS-LS1-3

Rapid growth during puberty causes your body to release more and more growth hormones. As you grow, more and more growth hormones are released until puberty is reached, and then the hormones stop.

• Positive Feedback Response
• Negative Feedback Loop 

Tags

NGSS.HS-LS1-3

If the calcium in your blood decreases below homeostasis levels, a gland in the brain will sense the decrease and send a chemical message to your bones. Your bones will release calcium into the blood, bringing blood calcium levels back up.

• Positive Feedback Response
• Negative Feedback Loop 

Tags

NGSS.HS-LS1-3

When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.

• Positive Feedback Response
• Negative Feedback Loop 

Tags

NGSS.HS-LS1-3

What hormone is produced in the pancreas that lowers blood sugar?

• Insulin

• Glucagon

• Ketones

• Glucose

What cells in the body monitor blood glucose?

• Pancreatic Cells
• Liver Cells
• Kidney Cells
• Bladder Cells

Do the levels of FSH and progesterone increase or remain low during the first 5 days of the menstrual cycle?

• Progesterone remains low but FSH increases
• Progesterone and FSH both remain low
• Progesterone increases but FSH remains low
• Progesterone and FSH both increase

Tags

NGSS.HS-LS1-3

Which of the following is a role of LH?

• Stimulates ovulation
• Stimulates repair and maintenance of endometrial lining
• Stimulates follicle development
• Inhibits FSH

What hormones do Ovaries make?

• Testosterone

• Oestrogen and Progesterone

• Thyroxine

• Adrenalin

Select an answer

• A

• B

• C

• D