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TLS Online TPP Program

#Question id: 343

Assume that acid rain has lowered the pH of a particular lake to pH 5.0. What is the hydroxide ion concentration of this lake?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. 1 × 10^-9 mol of hydroxide ions per liter of lake water

  2. 1 × 10^-5 mol of hydroxide ions per liter of lake water

  3. 5.0 M hydroxide ion

  4. 5.0 × 10^-5 mol of hydroxide ions per liter of lake water

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TLS Online TPP Program

#Question id: 23214

#Unit 13. Methods in Biology

Which type of interaction forces are involved in atomic force microscope?
TLS Online TPP Program

#Question id: 11852

#General Aptitude

The least number of five digits which is exactly divisible by 12,15 and 18, is :
TLS Online TPP Program

#Question id: 10897

#Unit 10. Ecological Principles

When three species of sunfish with similar niches were all placed in the same experimental pond, each made use of resources that they did not exploit in the absence of the other species. This scenario is referred to as
TLS Online TPP Program

#Question id: 19880

#Unit 13. Methods in Biology

Restriction enzymes are also called as
TLS Online TPP Program

#Question id: 14886

#Unit 4. Cell Communication and Cell Signaling

Secondary lymphoid organ provide sites where lymphocytes encounter antigen, become activated, and undergo clonal expansion and differentiation into effector cells, include
a) spleen
b) lymph node
c) mucosa-associated lymphoid tissue
Which of the following are the effector cells of secondary lymphoid organ?