Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 6078
TLS Online TPP Program

#Question id: 7278

The following demonstrates the blastocoel formation in the mammals. Which of the following statement is correct?

#Unit 5. Developmental Biology
  1. The membranes of inner cell mass contain sodium pumps that pump Na+ into the central cavity. The subsequent accumulation of Na+ draws in water osmotically, creating and enlarging the blastocoel.
  2. The membranes of trophoblast cells contain sodium pumps  that pump Na+ into the central cavity. The subsequent accumulation of Na+ draws in water osmotically, creating and enlarging the blastocoel.
  3. The membranes of inner cell mass contain potassium pumps that pump K+ into the central cavity. The subsequent accumulation of K+ draws in water osmotically, creating and enlarging the blastocoel.

  4. The membranes of trophoblast cells contain potassium pumps that pump K+ into the central cavity. The subsequent accumulation of K+ draws in water osmotically, creating and enlarging the blastocoel.

More Questions
TLS Online TPP Program

#Question id: 1818

#Unit 4. Cell Communication and Cell Signaling

Which of the following is the single best defining molecule on, or in, a B-cell?
TLS Online TPP Program

#Question id: 940

#Unit 1. Molecules and their Interaction Relevant to Biology

Transamination reactions require which coenzyme?
TLS Online TPP Program

#Question id: 11122

#Unit 9. Diversity of Life Forms

Phylogenetic hypotheses (such as those represented by phylogenetic trees) are strongest when
TLS Online TPP Program

#Question id: 11736

#Unit 6. System Physiology – Plant

Many plant tissues contain the enzyme cytokinin oxidase, which cleaves the side chain, except
TLS Online TPP Program

#Question id: 28459

#Unit 5. Developmental Biology

 In c.elegans, the cell secreting LAG-2 and LIN-12 protein act as ligand and the receptor for this molecule, if Lin-12 undergo Loss-of-function mutation resulting,