Tag: tissues of plants

Questions Related to tissues of plants

Between the bark and the wood in a woody stem, there is a layer of meristem called:

  1. Zone of cell division

  2. Vascular cambium

  3. Cork cambium

  4. Both B and C


Correct Option: D
Explanation:

Cambium is a kind of meristem which is most active in woody plants and it lies between the bark and wood of the stem. The vascular cambium forms tissues that carry water and nutrients throughout the plant. On the outer surface, the vascular cambium forms new layers of phloem, and on the inner surface, new layers of xylem. The cork cambium creates cells that eventually become bark on the outside and cells that add to the cortex on the inside. In woody plants, the cork cambium is part of the periderm. So, the correct answer is "both vascular and cork cambium".

Choose the correct answer from the alternatives given.
Meristematic activity is seen maximum in the:

  1. shoot

  2. root hair

  3. bud

  4. leaf


Correct Option: A
Explanation:

Meristematic activity is seen the maximum in the shoot of a plant. The meristematic tissue contains undifferentiated cells found in the zone of the plant where growth can take place.

So, the correct answer is 'shoot'.

Meristematic tissue in vascular bundle is

  1. Phellem

  2. Procambium

  3. Interfascicular cambium

  4. Fascicular cambium


Correct Option: D
Explanation:

Intrafascicular cambium is present between xylem and phloem in dicot stem and roots. It is also termed as fascicular cambium. This meristematic area spreads laterally from each bundle and eventually becomes continuous, forming a complete vascular cambium.

The term meristem was coined by

  1. Hanstein

  2. Nageli

  3. Schmidt

  4. Esau


Correct Option: B
Explanation:
  • The term meristem was first coined by a  Swiss botanist Carl Wilhelm von Nägeli in 1858
  • The term meristem was mentioned in his book "Contributions to Scientific Botany"
  • It is derived from the Greek word 'merizein' which means 'to divide'
So, the correct answer is 'Nageli'

Choose the correct answer from the alternatives given.
The primary growth in plants results from:

  1. primary cambium

  2. cambium

  3. promeristem

  4. lateral meristems


Correct Option: C
Explanation:

The primary growth in plants results from promeristem. Promeristem is the early embryonic meristem from which other advanced meristems are derived. It is present in a very small area which further divides to form primary meristem.

So, the correct answer is promeristem.

Which of these types of cells is most likely to divide?

  1. Meristem

  2. Parenchyma

  3. Xylem

  4. Epidermis


Correct Option: A
Explanation:

Meristem cells are most likely to divide as it has the capability to divide but others do not have the capability to divide. Meristem cells are located in a specific region where the growth of the plant occurs. So, the correct answer is option "meristem".

Tissue resposnible for origin of lateral roots:

  1. Cortex

  2. Endodermis

  3. Pericycle

  4. Vascular tissue


Correct Option: A

To ensure that the transferred gene expresses in all tissues of plant, which of the following promoters should be used?

  1. Ribulose $1, 5$-bisphosphate carboxylase small subunit gene

  2. Histone $3$ gene

  3. Phosphoenal pyruvate carboxylase gene

  4. Cauliflower mosaic virus, $35$ S RNA gene


Correct Option: A

Consider the following plants.
a. Castor bean
b. Pea
c. Maize
d. Soybean
In which of these plants is cotyledon the principal reserve tissue of food?

  1. $1$ and $2$

  2. $2$ and $4$

  3. $1$ and $3$

  4. $3$ and $4$


Correct Option: A

Match List I(Types of tissues) with List II(Examples of plants) and select the correct answer.

List-I List-II
a. Multiple epidermis $1$. Oryza sp.
b. Bulliform cells $2$. Ficus sp.
c. Articulated laticifers $3$. Cucurbita sp.
d. Biocallateral vascular bundles $4$. Carica sp.
  1. A-$4$, B-$1$, C-$2$, D-$3$

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

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

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


Correct Option: A