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TLS Online TPP Program

#Question id: 4961

An early consequence of the release of oxygen gas by plant and bacterial photosynthesis was to

#XL - S Microbiology

  1. make life on land difficult for aerobic organisms.

  2. change the atmosphere from oxidizing to reducing.

  3. make it easier to maintain reduced molecules

  4. cause iron in ocean water and terrestrial rocks to rust (oxidize).

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TLS Online TPP Program

#Question id: 29554

#XL - R Botany

One important difference between the anatomy of roots and the anatomy of leaves is that__
TLS Online TPP Program

#Question id: 29555

#XL - R Botany

Vessel element would likely lose its protoplast in which section of a root?
TLS Online TPP Program

#Question id: 29556

#XL - R Botany

Which of the following are the water-conducting cells of xylem, have thick walls, and are dead at functional maturity?
TLS Online TPP Program

#Question id: 29557

#XL - R Botany

During modification of root, there is found root which basically hanging structures and provide support to the plants, that type of root is an example of___
TLS Online TPP Program

#Question id: 29558

#XL - R Botany

Identify the type of placentation in the following diagram.
TLS Online TPP Program

#Question id: 29559

#XL - R Botany

Which of the following placentation is matched correctly with diagram?