BIOL 490 Exam Qs

Question 1

Only antigen-presenting cells contain MHC 1

Answer 1

False

Question 2

Chief cells of the stomach secrete pepsinogen, which will convert to pepsin under acidic conditions to digest proteins.

Answer 2

True

Question 3

The three muscle layers of the stomach include circular, longitudinal, and oblique muscles.

Answer 3

True

Question 4

Deglutition occurs in two phases, voluntary via smooth muscle and involuntary via skeletal muscle.

Answer 4

False

Question 5

The sphincters of the stomach are guarded with skeletal muscle

Answer 5

False

Question 6

Where do T cells mature?

Answer 6

Thymus

Question 7

Saliva contains:

Answer 7

Water, lingual lipase, salivary amylase

Question 8

Which of the following contain MHC II complexes?

Answer 8

Dendritic Cells, Macrophages, B cells

Question 9

How does the secondary immune response compare to the primary immune response?

Answer 9

The secondary immune response is a faster response than the primary immune response with the main antibody being IgG.

Question 10

What triggers the secretion of cholecystokinin (CCK)?

Answer 10

Presence of fatty acids and amino acids in the duodenum

Question 11

Which type of vertebrate tooth positioning is embedded in the jaw?

Answer 11

Thecodont

Question 12

What is the function of the pyloric sphincter?

Answer 12

To control the passage of chyme into the small intestine

Question 13

Which of the following is a part of primary lymphoid tissue?

Answer 13

Bone marrow, thymus

Question 14

T cells are created in the ______ and mature in the _________.

Answer 14

Bone marrow; thymus

Question 15

Which class of antibodies is important in targeting gut parasites and is associated with allergic responses?

Answer 15

IgE

Question 16

Which of the following is not a MAIN sign of an inflammatory response?

Answer 16

Itchiness

Question 17

Which of the following are considered accessory feeding structures?

Answer 17

Appendages, Palps, Beaks

Question 18

Which of the following are functions of the immune system?

Answer 18

Recognize and remove abnormal self cells, Remove dead or damaged cells, Protect from pathogens

Question 19

Which of the following is/are true about MHC class I complexes?

Answer 19

Only nucleated cells display MHC class I complexes, Only cytotoxic T cells react to MHC class I antigen presenting complexes

Question 20

Vitamins that are water soluble

Answer 20

B3, B12, Biotin, C

Question 21

Chemical digestion in the small intestine occurs due to which of the following?

Answer 21

Pancreatic juices, Bile, Brush Border Enzymes

Question 22

Which hormones help control appetite?

Answer 22

Leptin, Adiponectin, Gherkin, PYY

Question 23

Your patient has a condition where they do not secrete enough HCl in their stomach this will likely lead to

Answer 23

An excess of pepsinogen, decreased chemical digestion

Question 24

Gastrin is released by

Answer 24

Food in the stomach, the smell of food