Tag: structural organization in living organisms

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Questions Related to structural organization in living organisms

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

Meristematic tissue in vascular bundle is

  1. Phellem

  2. Procambium

  3. Interfascicular cambium

  4. Fascicular cambium
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

The term meristem was coined by

  1. Hanstein

  2. Nageli

  3. Schmidt

  4. Esau
Reveal answer Fill a bubble to check yourself
B Correct answer
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'
Multiple choice biology structural organization in living organisms tissues of plants levels of organisation in plants kinds of plant tissue

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

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

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

  1. Meristem

  2. Parenchyma

  3. Xylem

  4. Epidermis
Reveal answer Fill a bubble to check yourself
A Correct answer
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".

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

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

To ensure strong and constitutive expression of a transferred gene across all tissues of a plant, the Cauliflower Mosaic Virus 35S (CaMV 35S) promoter is widely used because it drives high-level constitutive expression in almost all plant tissues.

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

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 $4$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In castor bean and pea, the cotyledons serve as the primary food storage organs for the developing embryo. Maize and soybean typically store food in the endosperm or other structures, making castor bean and pea the correct examples for cotyledonary food storage.

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

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-$3$
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice biology plant tissues tissues of plants levels of organisation in plants structural organization in living organisms

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

  1. Sclerenchyma

  2. Paranchyma

  3. Chlorenchyma

  4. Collenchyma
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Collenchyma is a structural tissue that provides flexible support to growing plant organs like petioles and young stems. It is characterized by unevenly thickened cell walls that allow for both strength and growth.

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

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

  1. Parechyma

  2. Sclerenchyma

  3. Collenchyma

  4. Chlorenchyma
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Collenchyma is a living plant tissue characterized by unevenly thickened cell walls, providing mechanical strength and flexibility to growing plant organs such as young stems and petioles.