MMED1007 QUESTIONS AND ANSWERS
d. nuclei and rough endoplasmic reticulum - Answers -3) Haematoxylin is widely used
as a histological stain. What structures does it tend to bind to and stain most intensely?
d. gap junctions - Answers -24) What structure provides the pathway for the movement
of electrical current between the cells of the conduction pathway and the ventricular
muscle fibers?
d. forces electrical activity to be conducted through the atrioventricular node. - Answers
-25) The fibrous skeleton of the heart is important because it
a. reticular tissue - Answers -36) The structural framework of diffuse lymphatic tissue is:
b. multi-locular intra cellular fat droplets with many mitochondria - Answers -48) Which
of the following statements is most correct for Brown fat
d. Actin filaments and microtubules. - Answers -67) Cells have an internal skeleton (the
cytoskeleton). Which one of the following choices are components of the cytoskeleton:
Less than 100 picometers. - Answers -68) The most powerful TEMs have an ACTUAL
(practical) resolving power of:
c. Double fixation - Answers -69) After dissection, the first (next) step in specimen
preparation for TEM is:
a. contract when tropomyosin binds to actin in response to calcium - Answers -71) With
respect to the statements below, indicate the correct statement. Striated muscle fibres
a. Muscles normally contain fast and slow twitching muscle fibres - Answers -72) With
respect to muscle fibre types, indicate the correct statement
Are separated from each other by epimysium - Answers -74) With respect to the
statements below, indicate the incorrect statement.
Skeletal muscle fibres
b. being marked by addition of ubiquitin then broken down in proteasomes - Answers -
Misfolded or damaged proteins represent a considerable hazard to the long term health
of cells. These are usually disposed of by:
b. The hepatic portal vein, the hepatic vein and a bile ductule (small bile duct) -
Answers -Portal triads typically contain 3 vessels (although many also have a fourth
lymph vessel which is not counted, for obscure reasons). Anyway, which of the following
best describes the 3 vessels of the
d. nuclei and rough endoplasmic reticulum - Answers -3) Haematoxylin is widely used
as a histological stain. What structures does it tend to bind to and stain most intensely?
d. gap junctions - Answers -24) What structure provides the pathway for the movement
of electrical current between the cells of the conduction pathway and the ventricular
muscle fibers?
d. forces electrical activity to be conducted through the atrioventricular node. - Answers
-25) The fibrous skeleton of the heart is important because it
a. reticular tissue - Answers -36) The structural framework of diffuse lymphatic tissue is:
b. multi-locular intra cellular fat droplets with many mitochondria - Answers -48) Which
of the following statements is most correct for Brown fat
d. Actin filaments and microtubules. - Answers -67) Cells have an internal skeleton (the
cytoskeleton). Which one of the following choices are components of the cytoskeleton:
Less than 100 picometers. - Answers -68) The most powerful TEMs have an ACTUAL
(practical) resolving power of:
c. Double fixation - Answers -69) After dissection, the first (next) step in specimen
preparation for TEM is:
a. contract when tropomyosin binds to actin in response to calcium - Answers -71) With
respect to the statements below, indicate the correct statement. Striated muscle fibres
a. Muscles normally contain fast and slow twitching muscle fibres - Answers -72) With
respect to muscle fibre types, indicate the correct statement
Are separated from each other by epimysium - Answers -74) With respect to the
statements below, indicate the incorrect statement.
Skeletal muscle fibres
b. being marked by addition of ubiquitin then broken down in proteasomes - Answers -
Misfolded or damaged proteins represent a considerable hazard to the long term health
of cells. These are usually disposed of by:
b. The hepatic portal vein, the hepatic vein and a bile ductule (small bile duct) -
Answers -Portal triads typically contain 3 vessels (although many also have a fourth
lymph vessel which is not counted, for obscure reasons). Anyway, which of the following
best describes the 3 vessels of the
