Tag: adapting to a habit

Questions Related to adapting to a habit

Multiple choice botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

Halophytes maintain a proper osmotic concentration by

  1. Excreting salts

  2. Mucilage and stored water

  3. Proline and sorbitol

  4. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Halophytes use multiple strategies to survive, including salt excretion through glands, accumulation of organic osmolytes like proline/sorbitol, and water storage in succulent tissues.

Multiple choice botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

Plants living partly inside water and partly above it are :

  1. Xerophytes

  2. Thallophytes

  3. Hydrophytes

  4. Helophytes

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Helophytes are plants in which the roots lie under the soil below the water level, but the aerial shoots protrude and develop above the water. Examples include Typha minima, common reed, etc.

Multiple choice botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

Characteristic feature of mangrove plants is

  1. Apospory

  2. Heterospory

  3. Parthenocarpy

  4. Vivipary

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A. Apospory -include formation of Diploid gametophytes, without meiosis and spores, from vegetative cells of the sporophyte. for example - mosses and ferns.
B. Heterospory- is fornation of spores of two different sizes i.e smaller of these, the microspore, is male and the larger megaspore is female by the sporophytes of land plants. for example -pteridophytes -Selaginella and Salvinia.
C. Parthenocarpy is the development of a fruit without fertilization, which makes the fruit seedless, for example- Pineapple, banana.

D. Vivipary- Mangroves are viviparous, as mangroves disperse propagules or embryonic development while the propagule is attached to the parent tree.
( Thus, correct answer is option-D. Vivipary )

Multiple choice botany adapting to a habit adaptations - mangrove swamps, fast flowing rivers and treetops halophiles protecting our environment

Characteristic feature of halophyte is

  1. Velamen

  2. Lenticel

  3. Pneumatophore

  4. Hydathode

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pneumatophores are specialized aerial roots that grow upwards to facilitate gas exchange in the oxygen-poor, waterlogged soils typical of halophytic environments. Velamen is found in epiphytes, lenticels in stems, and hydathodes in leaves for guttation.