The Immune System — Unit test Answers

Which of the following describes a positive feedback loop?

Which is the largest gland in the body?

During digestion, water is both added and removed. Which area of the digestive system removes water?

Which is the last section of the digestive system?

Which actions are involved in the immune response?

Which action is a physical change in digestion?

Justine was feeling very sick. She went to the doctor, who told her she had a bacterial infection and withdrew blood for blood work.Which component in Justine’s blood would be higher than normal?

Stella is stressed about her upcoming midterm exams. Which glands are managing that stress during the tests?

The picture represents gas exchange in the alveoli. Observe what is happening at location X.

In the heart, one ventricle pushes blood with oxygen to the cells of the body. Where does the other ventricle push the blood without oxygen?

What is semen?

Look at the two images of cells.Which of the following statements best describes what can be seen in the images?

When is the most likely time for a female to become pregnant during her menstrual cycle?

The picture represents a structure of the respiratory system.

Staphylococcus aureus, or staph, is a bacteria that is commonly found in the nose and on the skin of humans. While it is typically not harmful to humans, it is sometimes able to enter the body through an injury or broken skin, and get into the bloodstream. When this happens, it can cause a serious infection called sepsis. Sepsis can cause an individual to go into shock and bodily organs to stop functioning. Symptoms of sepsis include inflammation, fever or hypothermia, increased heart rate, and rapid breathing.Which immune system component initially results in the inflammation and responds quickly when Staphylococcus aureus enters the bloodstream?