Question

Two plants are taxonomically related if
A. They store the carbohydrate in the same type of molecule.
B. Both obtain energy from hydrolysis of ATP.
C. Both have similarly lobed palmate leaves.
D. Both pinnately veined leaves

Answer 1

Hint: Earlier plants are categorized as herbs,shrubs and trees, later on it is separated as vascular and nonvascular plants and also monocot and dicot. Then the father of taxonomy Carolus linneaus proposed a binomial system of classification. In these taxonomic classification plants were classified on the basis of morphological relationships, chemical characters, structure, symmetry, size etc.

Complete answer:-
To answer this question you must know about taxonomic classification.
Taxonomic classification is the science which deals with the classification, identification and naming of organisms including plants. It was proposed by carolus linneaus. The classification is based on behavioural,genetics,characters and biochemical variation. They classified the organisms based on the character which were obtained by it from its novel shared ancestry. Accordingly,one such main characteristic of a plant is that it stores carbohydrate which is obtained at the end of the process called photosynthesis in the same type of molecules.

Considering other options : plants cannot obtained energy from hydrolysis of ATP and only depending upon the palmate and pinnate leaves we cannot say these plant are taxonomically related because if plant do not have pinnate or palmate leaves then also we can say these plant are taxonomically related just like if human beings do not have hands then also they are human beings.

Therefore the correct option of the given question is (A) store the carbohydrate in the same type of molecule.

Note:-
Living things are classified into three domains: bacteria, archaea and eukaryotes. The highest rank in a domain is kingdom. Each kingdom has many smaller groups in it called phylum and each phylum has smaller units called classes. In these classes there are genus and species. While writing the scientific name we write the genus and species of an organism.