NEET Botany MCQs

A scientist discovers a novel entity exhibiting complex organic molecules, compartmentalization, and energy transformation. However, it lacks a definitive cellular structure and doesn't demonstrate heritability. Which characteristic of life is MOST definitively absent in this entity?

Prions, infectious protein particles, can induce conformational changes in normal proteins, leading to diseases like Creutzfeldt-Jakob disease. While exhibiting self-propagation, prions lack genetic material. Do prions challenge the conventional definition of living organisms, and why?

Viruses exhibit characteristics of both living and non-living entities. Which of the following properties of viruses MOST strongly supports the argument AGAINST their classification as living organisms?

Imagine a synthetic life form created in a lab that uses a novel information storage molecule distinct from DNA or RNA, but still exhibits heritability and undergoes evolution. Which of the following aspects of the current definition of life would MOST require reconsideration in light of this discovery?

Which of the following is NOT a characteristic of living organisms?

Among the following choose the properties shown by the living organism exclusively?

I. growth

II. increase in mass

III. self-replication ability

IV. response to touch stimuli

Select the correct statement from the following statements

I. Increase in mass and increase in number of individuals are twin characteristics of growth

II. Metabolic reactions can also be demonstrated outside the body in isolated cell-free systems

III. ‘Response to stimuli’ is a defining property of living organisms

A living organism can be easily distinguished from non-living on the basis of

Among the following listed features, which is not a unique feature of living organisms?

Read the following features and select the correct option from the options given below with respect to living beings

I. They reproduce

II. They metabolise

III. They have cellular organisation

IV. They have ability to respond to stimuli