Tag: biology

Questions Related to biology

Meristematic tissue in vascular bundle is

biology structural organization in living organisms tissues of plants levels of organisation in plants kinds of plant tissue

  1. Phellem

  2. Procambium

  3. Interfascicular cambium

  4. Fascicular cambium

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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

biology structural organization in living organisms tissues of plants levels of organisation in plants kinds of plant tissue

  1. Hanstein

  2. Nageli

  3. Schmidt

  4. Esau

Show answer
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:

biology structural organization in living organisms tissues of plants levels of organisation in plants kinds of plant tissue

  1. primary cambium

  2. cambium

  3. promeristem

  4. lateral meristems

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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?

biology structural organization in living organisms tissues of plants levels of organisation in plants kinds of plant tissue

  1. Meristem

  2. Parenchyma

  3. Xylem

  4. Epidermis

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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:

biology plant tissues tissues of plants levels of organisation in plants structural organization in living organisms

  1. Cortex

  2. Endodermis

  3. Pericycle

  4. Vascular tissue

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Correct Option: A

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

biology plant tissues tissues of plants levels of organisation in plants structural organization in living organisms

  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

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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?

biology plant tissues tissues of plants levels of organisation in plants structural organization in living organisms

  1. $1$ and $2$

  2. $2$ and $4$

  3. $1$ and $3$

  4. $3$ and $4$

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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.
biology plant tissues tissues of plants levels of organisation in plants structural organization in living organisms

  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-$3$

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Correct Option: A

The stalk of a leaf is derived from which one of the following types of plant tissue?

biology plant tissues tissues of plants levels of organisation in plants structural organization in living organisms

  1. Sclerenchyma

  2. Paranchyma

  3. Chlorenchyma

  4. Collenchyma

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Correct Option: D

Which of the following tissue provides mechanical support to the growing parts of the plants such as young stem and petiole of a leaf ?

biology plant tissues tissues of plants levels of organisation in plants structural organization in living organisms

  1. Parechyma

  2. Sclerenchyma

  3. Collenchyma

  4. Chlorenchyma

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Correct Option: A