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TLS Online TPP Program

#Question id: 12970

In deep-sea hydrothermal vents near the Galapagos Islands, bacteria obtain energy by oxidizing hydrogen sulphide released from the vents. Giant tube worms, which lack mouths and digestive systems, harbour the bacteria in their tissues and use them as a source of organic molecules. Clams obtain energy by filtering bacteria directly from the water, and numerous crabs and octopi feed on the clams. In this unique ecosystem, the bactena are playing the role of

#Unit 10. Ecological Principles
  1. Primary producers 
  2. Primary consumers
  3. Secondary consumers
  4. Tertiary consumers
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TLS Online TPP Program

#Question id: 10924

#Unit 6. System Physiology – Plant

Due to damage exudation of sap from cut petioles or stems takes place they can be collected. However, quantities of collected sap are small, and the method is technically difficult. A preferable approach for collecting exuded sap is to use an
TLS Online TPP Program

#Question id: 11047

#Unit 6. System Physiology – Plant

As plants absorb water from the soil, they deplete the soil of water near the surface of the roots, This depletion due to
TLS Online TPP Program

#Question id: 11048

#Unit 6. System Physiology – Plant

In vascular plants, phloem is the living tissue that transports the soluble organic compound made during photosynthesis in the form of sugar, The phloem tissue is made up of cells called phloem elements. Which of the following given phloem elements are directly involved in translocation?
TLS Online TPP Program

#Question id: 11049

#Unit 6. System Physiology – Plant

Match the CORRECT combination of the phloem elements with its function.

PHLOEM ELEMENTSFUNCTIONS
P) sieve tube elementsi) for protection and strengthening of the tissue
Q) sieve cellsii) store and release food molecules
R) companion cellsiii) food translocation in angiosperm
S) Phloem parenchyma cells  iv) latex containing cells
T) Phloem fibers and sclereids v) help in flow of solute and show    high, activity metabolic 
U) laticifers vi) food translocation on gymnosperm
TLS Online TPP Program

#Question id: 11050

#Unit 6. System Physiology – Plant

Three dimensional reconstructions of Arabidopsis sieve plates using a staining technique that can be used to image entire plant organs and Open sieve pores are visible as well as callose plug are also visible which technique used to analyze
TLS Online TPP Program

#Question id: 11524

#Unit 6. System Physiology – Plant

Which of the following is consider as a first plant hormone ?