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TLS Online TPP Program

#Question id: 15419

Doris Taylor’s research group used detergents to remove all the cells from a cadaveric rat heart, which leaves behind the natural extracellular matrix. An extracellular matrix scaffold can promote the differentiation and rebuilding of a beating heart. The researchers then infused this ECM scaffold with cardiomyocytes. Now these cells differentiated and organized into a functionally contracting “recellularized” heart. Which of the following statement is correct?

#Unit 5. Developmental Biology
  1. The decellularized ECM were instructive in allowing the cardiomyocytes to recreate contracting heart muscle.
  2. The decellularized ECM were permissive in allowing the cardiomyocytes to recreate contracting heart muscle.
  3. The decellularized ECM were permissive and instructive both & allowing the cardiomyocytes to recreate contracting heart muscle.
  4. The decellularized ECM were involve in Epithelial-mesenchymal interaction to allowing the cardiomyocytes to recreate contracting heart muscle.
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TLS Online TPP Program

#Question id: 996

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is (are) true of the oxidation of 1 mol of palmitate (a 16-carbon saturated fatty acid; 16:0) by the B-oxidation pathway, beginning with the free fatty acid in the cytoplasm?

1. Activation of the free fatty acid requires the equivalent of two ATPs.

2. Inorganic pyrophosphate (PPi) is produced.

3. Carnitine functions as an electron acceptor.

4. 8 mol of FADH2 are formed.

5. 8 mol of acetyl-CoA are formed.

6. There is no direct involvement of NAD+.
TLS Online TPP Program

#Question id: 11952

#Unit 7. System Physiology – Animal

Lysine is an essential amino acid for animals. If an animal did not consume lysine in its diet, you might expect that the animal
TLS Online TPP Program

#Question id: 11978

#Unit 10. Ecological Principles

Which of the following statements about the ocean pelagic biome is true?
TLS Online TPP Program

#Question id: 11342

#Unit 2. Cellular Organization

What happens to K+ transport by valinomycin when the membrane is cooled below its transition temperature?
TLS Online TPP Program

#Question id: 4692

#Unit 3. Fundamental Processes

most common nucleoside modifications in eukaryotic rRNAs such as methylation, pseudouridine formation, and other modifications is carried by