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TLS Online TPP Program

#Question id: 381

Consider an acetate buffer, initially at the same pH as its pKa (4.76). When sodium hydroxide (NaOH) is mixed with this buffer, the:

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. pH rises more than if an equal amount of NaOH is added to an acetate buffer initially at pH 6.76

  2. pH rises more than if an equal amount of NaOH is added to unbuffered water at pH 4.76.

  3. ratio of acetic acid to sodium acetate in the buffer falls.

  4. sodium acetate formed precipitates because it is less soluble than acetic acid.

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TLS Online TPP Program

#Question id: 12404

#Unit 6. System Physiology – Plant

Covalent conjugation of amino acids to IAA can result in___
TLS Online TPP Program

#Question id: 9168

#Unit 9. Diversity of Life Forms

Which of the following statements best describes the interaction between fire and ecosystems?
TLS Online TPP Program

#Question id: 10244

#Unit 10. Ecological Principles

Ecological niche modelling is used to predict the distributions of species. As a general rule, which of the following statements is true?
TLS Online TPP Program

#Question id: 23311

#General Aptitude

Generally the teachers do not take pains on students’ postures in the classroom. What will you do for their improvement?
TLS Online TPP Program

#Question id: 5726

#Unit 8. Inheritance Biology

Following diagram represents the sequence of genes in a normal chromosome of a plant species

CORRECT combination for chromosomal mutation using