Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 25912
TLS Online TPP Program

#Question id: 314

Which statement explains the cleaning action of soap on greasy dishes?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. The soap changes the water-solubility of the grease so that it is easily dissolved by the water.

  2. The grease is trapped inside the hydrophobic interior of micelles made of soap molecules.

  3. The soap chemically breaks down the grease into smaller, more water-soluble molecules.

  4. The soap hydrates the grease with its polar head groups and holds it in suspension.

More Questions
TLS Online TPP Program

#Question id: 27383

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the correct statement related to the atomic size Cl and Mg
TLS Online TPP Program

#Question id: 19380

#Unit 12. Applied Biology

Glyphosate results primarily from starving the cells of aromatic amino acids, which leads to
TLS Online TPP Program

#Question id: 16143

#Unit 4. Cell Communication and Cell Signaling

undifferentiated hematopoietic stem cells would not express surface markers specific for mature cells from the multiple blood lineages (“Lin” markers). They used several approaches to eliminate cells in the bone marrow that did express these markers (Lin+ cells) and then examined the remaining (Lin+) population for its potential to continually give rise to all blood cells over the long term. Lin- cells were, indeed, enriched for this potential. what marker is   express If cells inter in lymphoid lineages?
TLS Online TPP Program

#Question id: 11473

#Unit 7. System Physiology – Animal

Lateral inhibition via horizontal cells in the mammalian retina ________.
TLS Online TPP Program

#Question id: 12026

#Unit 7. System Physiology – Animal

Pepsinogen is converted to its active form in the stomach by ________.