Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 51128
TLS Online TPP Program

#Question id: 570

Which of the following is true for allosteric enzymes

#SCPH01 Biochemistry

  1. Allosteric enzymes regulated primarily by covalent modification.

  2. Allosteric enzymes usually catalyze several different reactions within a metabolic pathway.

  3. Allosteric enzymes usually have more than one polypeptide chain.

  4. Allosteric enzymes usually have only one active site.

More Questions
TLS Online TPP Program

#Question id: 8898

#SCPH06 I Botany

Which extant chordates are postulated to be most like the earliest chordates in appearance?
TLS Online TPP Program

#Question id: 8898

#SCPH28 | Zoology

Which extant chordates are postulated to be most like the earliest chordates in appearance?
TLS Online TPP Program

#Question id: 8899

#SCPH06 I Botany

A new species of aquatic chordate is discovered that closely resembles an ancient form. It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. In addition to these, it will probably have which of the following characteristics?
TLS Online TPP Program

#Question id: 8899

#SCPH28 | Zoology

A new species of aquatic chordate is discovered that closely resembles an ancient form. It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. In addition to these, it will probably have which of the following characteristics?
TLS Online TPP Program

#Question id: 8900

#SCPH06 I Botany

Which of the following statements about craniates is (are) correct?
1. Craniates are more highly cephalized than are non-craniates.
2. Craniatesʹ genomic evolution includes duplication of clusters of genes that code for transcription factors.
3. The craniate clade is synonymous with the vertebrate clade.
4. Pharyngeal slits that can assist in gas exchange originated in craniates,
5. The two-chambered heart originated with the early craniates.
TLS Online TPP Program

#Question id: 8900

#SCPH28 | Zoology

Which of the following statements about craniates is (are) correct?
1. Craniates are more highly cephalized than are non-craniates.
2. Craniatesʹ genomic evolution includes duplication of clusters of genes that code for transcription factors.
3. The craniate clade is synonymous with the vertebrate clade.
4. Pharyngeal slits that can assist in gas exchange originated in craniates,
5. The two-chambered heart originated with the early craniates.