Chapter 10: Micromineral (Cobalt)

Question 1

highly concentrated in spleen, kidneys, and pancreas as a component of vitamin b12 (4%)

Answer 1

cobalt

Question 2

cobalt - functions

essential component of vitamin _____ that is essential for the maturation of the rbc

Answer 2

vitamin b12

Question 3

cobalt - functions

cofactor for _____ metabolism

Answer 3

energy metabolism

Question 4

cobalt - functions

activates _____ that converts arginine to urea

Answer 4

arginase

Question 5

cobalt - absorption

absorbed mainly in the _____

Answer 5

jejunum

Question 6

cobalt - absorption

about 85% of Co is excreted in the ____

Answer 6

urine

Question 7

cobalt - absorption

aside from the urine (85%), Co is excreted in small amounts in the _____ (2)

Answer 7

feces and perspiration

Question 8

cobalt - deficiency

there are no documented cases of co deficiency, except for its association with _____

Answer 8

vitamin b12

Question 9

cobalt - toxicity

Co can have toxic effects when taken in large doses and may result to _____ (4)

Answer 9

goiter, hypothyroidism, hypotension, and heart failure

Question 10

cobalt - toxicity

an increase in the number of RBCs; is typical in Co toxicity related with excessive beer drinking

Answer 10

polycythemia

Question 11

cobalt - food source

liver, kidney, oysters, and clams

Answer 11

cobalt food source