OS 201: Correlative Cell Biology Flashcards
- Which compound can’t be synthesized from tyrosine?
a. Catecholamines
b. Melanin
c. Serotonin
d. Thyroid Hormone
c. Serotonin
- Which of the following factors are associated with increased digestibility and absorption of dietary lipids?
a. High fat consumption
b. Older age of consumption
c. Longer fatty acid length
d. More saturated fat content
c. Longer fatty acid length
- Which of the following inhibits LPL?
a. A-II
b. C-I
c. C-II
d. C-III
d. C-III
- Which of the ff statements about lipid synthesis is INCORRECT?
a. Glucose provides the reducing equivalents
b. It occurs in the cytoplasm
c. Two carbons are added from acetylCoA successively
d. Oleic acid is the first fatty acid
d. Oleic acid is the first fatty acid
- Which of the following is TRUE about essential fatty acids?
a. They can be synthesized by humans
b. They cannot be synthesized by plants
c. They do not maintain membranes
d. They have double bonds at delta12 and delta15
d. They have double bonds at delta12 and delta15
- Which of the ff statements regarding Omega-3 is FALSE?
a. Synthesized in the human body in the presence of the needed precursors
b. The needed precursor is linoleic acid
c. Linoleic acid can be synthesized de novo in the human body
d. Linoleic acid can be derived from the diet
c. Linoleic acid can be synthesized de novo in the human body
- Odd-numbered fatty acids can enter the glucogenic pathway through proprionyl CoA, which can form what intermediate of the Krebs cycle?
a. Citrate
b. Alpha-ketoglutarate
c. Succinyl CoA
d. Malate
c. Succinyl CoA
- Which of the following about ketogenesis is false?
a. It occurs in the liver exclusively
b. It occurs in the mitochondria
c. It uses carbon atoms from acetyl CoA
d. Both acetoacetic acid and beta-hydroxybutyrate are weak acids
d. Both acetoacetic acid and beta-hydroxybutyrate are weak acids
- The vitamin-mineral combination is a cofactor of lysyl oxidase, for the synthesis of collagen necessary for wound healing.
a. Vitamin B6 and Zinc
b. Folic acid and Iron
c. Vitamin C and Iron
d. Vitamin E and Selenium
c. Vitamin C and Iron
For numbers 10-12:
a. Marasmus
b. Kwashiorkor
1. <60% compared to reference weight
2. Predominantly CHO diet
3. What is Jimmy’s condition called?
A
B
A
For numbers 13-16:
a. Negative Nitrogen Balance
b. Positive Nitrogen Balance
c. Equilibrium
13. Toddler
14. Pregnant mother
15. Healthy adult with no exercise
16. Healthy adult with exercise
NA
- Angel has a twin sister, Lucy, who is a power lifter. She weighs 60kg. What can you say about their metabolic rate?
a. Angel’s BMR is higher than Lucy’s
b. Lucy’s BMR is higher than Angel
c. They have equal BMR
d. It cannot by determined
b. Lucy’s BMR is higher than Angel*
- Which is true of TCA cycle?
a. It produces reducing equivalents for ETC
b. Has anabolic and catabolic phases
c. It is the final common pathway for the metabolism of glucose, fatty acid and amino acids
d. All of the above
d. All of the above
- Which of the following is TRUE about major biomolecules?
a. Carbohydrate energy stores are bulky and not readily available
b. Fat stores are compact and readily available
c. Amino acids are glucose sources but have other uses
d. All of the above
c. Amino acids are glucose sources but have other uses*
- What source replenishes our blood glucose levels?
a. Breakdown of amino acids from hepatic portal circulation
b. Breakdown of carbohydrates from diet
c. Breakdown of glycogen from liver and skeletal muscles
b. Breakdown of carbohydrates from diet*
