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TLS Online TPP Program

#Question id: 325

A true statement about hydrophobic interactions is that they:

#SCPH06 I Botany

  1. are the driving force in the formation of micelles of amphipathic compounds in water.

  2. do not contribute to the structure of water-soluble proteins.

  3. have bonding energies of approximately 20–40 KJoule per mole.

  4. primarily involve the effect of polar solutes on the entropy of aqueous systems.

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TLS Online TPP Program

#Question id: 3509

#SCPH28 | Zoology

Principle of independent assortment apply for those gene that is
TLS Online TPP Program

#Question id: 7751

#SCPH28 | Zoology

Ultrastructural studies have led to the characterization of two distinctive cytological
pathways of PCD in plants;
I) Vacuolar-type PCD
II) Hypersensitive response-type (HR-type) PCD
a) cytosol and all its organelles, including the plasma membrane, are completely brokendown
b) The vacuole loses water, resulting in marked cell shrinkage, contraction from the cell wall,
and nuclear DNA degradation
c) PCD occurs in leaves in response to microbial attack
d) cell wall is either partially or completely digested as well, as in endosperm tissue
e) Continued water loss from the cytosol leads to the breakdown of the plasma membrane
and the release of residual cellular contents into the apoplast
Given characterization of PCD pathway match with its type PCD?
TLS Online TPP Program

#Question id: 10906

#SCPH05 I Biotechnology

The pressure-flow model explains phloem translocation as a flow of solution (bulk flow) driven by an osmotically generated pressure gradient between source and sink.

a) Phloem translocation, both active and passive mechanisms were considered. All theories, both active and passive, assume an energy requirement in both sources and sinks.

b) In sources, energy is necessary to move photosynthate from producing cells into the sieve elements. This movement of photosynthate is called phloem loading.

c) In sinks, energy is essential for some aspects of movement from sieve elements to sink cells, which store or metabolize the sugar. This movement of photosynthate from sieve elements to sink cells is called phloem unloading.

d) The Active mechanisms of phloem transport further assume that energy is required in the sieve elements of the path between sources and sinks simply to maintain structures.

From the given statements find out the correct for pressure-flow model.
TLS Online TPP Program

#Question id: 10555

#SCPH06 I Botany

The water molecule, hydrogen–oxygen bonds form an angle of 105°, The opposite partial charges (δ– and δ+) on the water molecule lead to the formation of which bond with other water molecules,
TLS Online TPP Program

#Question id: 4328

#SCPH05 I Biotechnology

Which of the following statements about the DNA in one of your brain cells is true?