Tag: habit of plants

Questions Related to habit of plants

The meristem that is parallel to the longitudinal axis of the plant is ____________.

biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

  1. Procambium

  2. Intercalary meristem

  3. Phellogen

  4. Apical meristem

Show answer
Correct Option: C
Explanation:

A. Procambium is a plant tissue that came from the apical meristem which made the vascular bundles i.e, the xylem and the phloem.

B. Intercalary meristems are residual apical meristems that exist at the nodes and internodes which increases the length of the plant.

C. Phellogen is also famous as cork cambium which is a lateral meristem. It increases the girth of the plant.

D. The apical meristem is placed at the root and shoots tip. It helps in the primary growth of a planet by increasing the length of the plant.

The lateral meristem which occurs on the lateral side of the longitudinal axis stem. It is parallel to the longitudinal axis and also responsible for increasing the girth of a plant (secondary growth).

So, the correct answer is 'Phellogen'.

The correct option is C.

Study the following lists

List-I List-II
(A) Coleorha (I) Development of sporophedirely from gametophewithout intervention ofgametes
(B) Apogamy (II) Development of gametophedirectly om sporophewithout the involvement ofreduction division
(C) Indusium (III) An unbranched columnsstem with a crown of leaves
(D) Caudex (IV) Protedive covering of radical
(V) Protective structure of a sorus

The correct is match:

biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

  1. A B C D

    V II IV I

  2. IV I V III

  3. III V II IV

  4. II III I V

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Correct Option: B

When a species becomes extinct, the plant and animal species associated with it in an obligatory way also become extinct. This phenomenon is referred to as 

biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

  1. fragmentation

  2. alien species invasion

  3. over-exploitation

  4. co-extinction.

Show answer
Correct Option: D
Explanation:

Extinction of one species automatically causes extinction of the other species in certain obligatory mutualistic relationship.

The $2000$ years old seeds excavated from King Horod's palace in dead sea belongs to.

biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

  1. Strobilanthus kunthiana

  2. Phoenix dactylifera

  3. Lupinus arcticus

  4. Dendrocolamus strictus

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Correct Option: B

Pneumatophores are characteristic of ____________.

biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

  1. Submerged plants

  2. Parasitic plants

  3. Mangroves

  4. Alpine plants

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Correct Option: A

The Amaryllidaceous is distinguished from liliaceous on the basis of.

biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

  1. Regular timorous flower with superior ovary

  2. Umbellate inflorescence, regular timorous flower with superior ovary

  3. Umbellate inflorescence, regular flower and inferior ovary

  4. Umbellate inflorescence and inferior ovary

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Correct Option: A

With reference to the pioneering word done on the plants listed match List(Plants) with List II(Phenomena) and select the correct answer using the codes given the lists.

List-I(Plants) List-II(Phenomena)
a. Sinapis alba $1$. Phototropism
b. Barely roots $2$. Tanda effect
c. Mougetia $3$. Control of gene expression by phytochrome
d. Arabidopsis $4$. Chloroplast movement
biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

  1. A-$1$, B-$2$, C-$4$, D-$3$

  2. A-$1$, B-$4$, C-$2$, C-$3$

  3. A-$3$, B-$2$, C-$4$, D-$1$

  4. A-$3$, B-$4$, C-$2$, D-$1$

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Correct Option: A

Plants growing in shady regions are

biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

  1. Sciophytes

  2. Xerophytes

  3. Epiphytes

  4. Heliophytes

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Correct Option: A
Explanation:

(a) Those plants which grow best in shade or diffused light are called sciophytes or helioPhobous or PhotoPhobous or shade loving plants.

Papaya is a dioecious plant. This condition prevents.

biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

  1. Both autogamy and geitenogamy

  2. Only autogamy

  3. Only xenogamy

  4. Geitonogamy

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Correct Option: A

Which of the following statements are not true?

biology water absorption and ascent of sap in plants transport of water across plants habit of plants plant classifications

  1. In CAM plants, stomata open during dark and remain closed during the day

  2. Role of $Na^+$ in stomatal opening is now universally accepted

  3. Water potential of root cells is higher than water potential of soil

  4. Capillarity theory is most accepted theory of water movement through plants

  5. Wall of xylem vessels made up of lignocellulose has strong affinity for water molecules

Show answer
Correct Option: A