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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:

#SCPH05 I Biotechnology

  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: 15581

#SCPH05 I Biotechnology

Which one of the following factors does not influence the rate of oxygen transfer in an aerobic fermentation system ?
TLS Online TPP Program

#Question id: 3879

#SCPH06 I Botany

Which of the following is not usually essential for the catalytic activity of ribozymes?
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#Question id: 3916

#SCPH28 | Zoology

Transcription termination
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#Question id: 672

#I Life Science/ Life Sciences Group – I-V

An ideal α-helix has a pitch of 0.54 nm and a rise of 0.15 nm. What is the length along the helix axis for a segment of an ideal α-helix that contains 30 amino acids?
TLS Online TPP Program

#Question id: 3689

#SCPH06 I Botany

DNA replication is bidirectional and anti-parallel. Which of the statement is FALSE regarding the DNA replication?