Tag: plant taxonomy

Questions Related to plant taxonomy

Which of the following statements is correct about the kingdom Plantae?

  1. They are multicellular eukaryotes

  2. They are usually autotrophic

  3. Their cells have cell wall, made up of cellulose

  4. All of the above


Correct Option: D
Explanation:

The kingdom Plantae includes all plants i.e., trees, grasses, ferns and mosses, They are multicellular eukaryotes. They have nucleated cells. They have cell organelles like mitochondria and chloroplast. They contain chlorophyll and are capable of making their own food in presence of sunlight. So, they are called autotrophs. Their cells have distinct cellulose wall that other organisms lack. 

So, the correct answer is option D.

Most primitive member in which roots are not present is ____________.

  1. Psilotum

  2. Rhynia

  3. Lycopodium

  4. Selaginella


Correct Option: B
Explanation:
Rhynia is a single-species genus of Devonian vascular plants. Rhynia is more primitive than Psilotum and both lack true roots. 
So, correct answer is Rhynia.

Algae can be described as

  1. Autotrophic and chemosynthetic

  2. Autotrophic and photosynthetic

  3. Heterotrophic and photosynthetic

  4. Heterotrophic and chemosynthetic


Correct Option: B
Explanation:

Algae is the group of organisms which is comprised of the unicellular and the multicellular organisms. These organisms possess the chlorophyll pigments which help in the trapping of the solar energy. The plants can perform photosynthesis and prepare their own food. The plants are autotrophic and have the ability to produce their own food.

So, the correct answer is 'Autotrophic and photosynthetic'

Write the correlation.
Protista : Euglena : : Plantae : :

  1. Amoeba

  2. Paramoecium

  3. Green plants

  4. Bacteria


Correct Option: C
Explanation:

  • Euglena is an example of an organism belonging to the kingdom Protista. All green plants are included in the kingdom Plantae.

Therefore, the correct answer is option C.

Kingdom plantae include which of the following sub-kingdoms?

  1. Cryptogams and phanerogams

  2. Cryptogams and Porifera

  3. Thallophyta and Bryophyta

  4. Pteridophyta and Thallophyta


Correct Option: A
Explanation:

Cryptogams and phanerogams are the two sub-kingdoms of kingdom plantae.
Porifera is phylum of kingdom Animalia. Thallophyta, Bryophyta and Pteridophyta are the division of kingdom plantae.

Thus option A is correct.

Kingdom Plantae includes organisms that are

  1. Unicellular and eukaryotic

  2. Multicellular, eukaryotic and saprophytic

  3. Multicellular, eukaryotic and autotrophic

  4. Multicellular, eukaryotic and heterotrophic


Correct Option: C
Explanation:

Kingdom Plantae includes all multicellular eukaryotic organisms containing chlorophyll. They are autotrophs as they can make their own food with the help of solar energy. The cell wall of plants comprises of cellulose. They have the ability to grow by cell division. They lack motility. Thus, the correct option is C.

Which of the following statements about the distinction between plants and animals is false?

  1. Plants have cell wall made up of cellulose.

  2. Plants have intermediate larval stages.

  3. Plants are extensively branched.

  4. Animals are heterotrophic.

  5. All of the above.


Correct Option: B
Explanation:

Plants and animals though both livings are different in many ways. On considering the cell though the function is the same but structure is different, the plant cell has chloroplast which contains the green pigment chlorophyll. Besides this, the plant cell has a cell wall and large vacuole which are absent in  animal cells. However, in respect to the life cycle of plants and animals, many animals go through larval stages before they metamorphose into adults whereas plants do not have a larval stage. Thus, the correct answer is option B.

............ provides the rigid shape to plant cells.

  1. Cell membrane

  2. Cell wall

  3. Cytoskeleton

  4. Chloroplasts

  5. Centrioles


Correct Option: B
Explanation:

The peptidoglycan in the cell wall gives a rigid structure to the entire cell. The cell wall surrounding the cell gives shape to the cell and also prevents it from bursting.

An autotropic organism with cells that are organized into tissues and organs.

Which of the following organism includes these characteristics?

  1. Monera

  2. Protista

  3. Fungi

  4. Plantae

  5. Animalia


Correct Option: D
Explanation:

Kingdom monera includes unicellular organisms while kingdom Protista includes eukaryotic unicellular and simple multicellular organisms. Kingdoms fungi and animals include heterotrophic organisms. Kingdom Plantae includes autotrophic multicellular organisms that exhibit tissue or organ/organ system level of body organization. Thus, the correct answer is D.

An organism is examined and is found to be multicellular and heterotrophic and have cell walls made of a substance other than cellulose. The organism belongs to which of the following kingdoms?

  1. Monera

  2. Protista

  3. Fungi

  4. Plantae

  5. Animalia


Correct Option: C
Explanation:

Kingdom monera includes unicellular prokaryotic BGA and bacteria. Kingdom Protista includes eukaryotic unicellular organisms, algae and all protozoa. Kingdom fungi include multicellular, heterotrophic eukaryotes with the chitinous cell wall. Kingdom Plantae includes autotrophic organisms with cellulosic cell wall while kingdom Animalia includes heterotrophic organisms without the cell wall. The correct answer is C.