STD 11 - 6. Anatomy flowering plants — NEET STD 11 Science — Question

The tumour inducing capacity of Agrobacterium tumefaciens is located in large extra chromosomal plasmids called

Which of the following statements are true for enzymes regarding temperature and pH ?
(i) Enzymes generally function in a narrow range of temperature and pH.
(ii) Each enzyme shows its highest activity at a particular temperature and pH called the optimum temperature and optimum pH.
(iii) Activity declines both below and above the optimum value.
(iv) Low temperature destroys enzymatic activity because proteins are denatured by heat.
(v) High temperature preserves the enzyme in a temporarily inactive state.

An example of axile placentation is

Which one of the following statements are correct ?
(i) Ernst Hackel is called 'The Darwin of the 20 century'.
(ii) The number and types of organisms present on earth represent Biodiversity.
(iii) The process of standardising the name of living organisms is called nomenclature.
(iv) ICBN stands for International Code for Botanical Nomenclature whereas ICNZ stands for International Code for Zoological Nomenclature.
(v) The system of providing a scientific name with two components is called Binomial Nomenclature and was given by Carlous Linnaeus.
(vi) The two components of Binomial Nomenclature are family and specific epithet.
(vii) Both the words in Biological name, when handwritten are seperately underlined or printed in italics to indicate Latin origin origin.
(viii) There are many categories/ranks in classification and are generally referred to as taxonomic categories or taxa.
(ix) The title of Linnaeus's publication is micrographia.
(x) In classification; all the categories constitute taxonomic hierarchy.
(xi) The scientific names of Housefly, Wheat and Lion are Musca domestica, Triticum aestivum and Panthera leo respectively.
(xii) Brinjal and potato belong to species Solanum.
Choose the correct option given below:-

Pyruvate (pyruvic acid) dehydrogenase is used in converting

Flowers of Liliaceae, Malvaceae and Solanaceae are

Choose incorrect pair for Amazonian rain forest.