INCORRECT

Question 1

After being exposed to cigarrette smoking, how will the following values change as compared to someone who has never been exposed to cigarette smoke:

Mucus Production and Secretion
Activity of Airway Cilia
Aveolar Macrophage function

Answer 1

Mucus Production and Secretion- increased
Activity of Airway Cilia- decreased
Aveolar Macrophage function- decreased.

Question 2

A 31-year old woman is diagnosed with squamous cell carcinoma of the cervix. A biopsy of the cervix shows that the tumour cells express Human Papilloma Virus, Type 16 antigens. Which of the following cell types most likely plays a role in recognizing and killing this virus-infected tumour cells?

A) Dendritic Cells
B) Macrophages
C) Myeloid Precursors
D) Plasma Cells
E) T Lymphocytes

Answer 2

A) Dendritic Cells---> You did this but these are Antigen-presenting cells which are a link between innate and adaptive immunity. They are highly phagocytic. Have MHC 2 receptors, and CD 80/86 (B7) on their surface,
B) Macrophages
C) Myeloid Precursors
D) Plasma Cells
E) T Lymphocytes- CORRECT.

Question 3

Studies show that G-alpha-s subunit of G proteins in the tumour lacks GTPase Activity. The tumour cells in this patient most likely have increased activity of which enzyme?

Answer 3

Adenylyl Cyclase.

Question 4

What cell membrane properties are only true for Gram negative and Gram positive?

Answer 4

Gram Positive—-> Lipotechoiec Acid.

Gram Negative—> Outer membrane, perplasmic space (for B lactamases)