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TLS Online TPP Program

#Question id: 3041

Which statement about gram-negative bacteria is correct?

#Unit 2. Cellular Organization

  1.  Penicillins are the best antibiotics to use against them.

  2. They often possess an outer membrane containing toxic lipopolysaccharides.

  3. Their chromosomes are composed of DNA tightly wrapped around large amounts of histone proteins.

  4. Their cell walls are primarily composed of peptidoglycan.

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TLS Online TPP Program

#Question id: 9159

#Unit 9. Diversity of Life Forms

Which of the following investigations would shed the most light on the future distribution of organisms in temperate regions that are faced with climate change?
TLS Online TPP Program

#Question id: 1714

#Unit 4. Cell Communication and Cell Signaling

In a lymph node, the antigen pneumococcus polysaccharide SIII leads to:
TLS Online TPP Program

#Question id: 31295

#Unit 5. Developmental Biology

Which of the following cells become Nieuwkoop center?
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: 19203

#Unit 12. Applied Biology

Biological compound used in piezoelectric biosensor is