A researcher observes an isolated system containing complex organic molecules undergoing spontaneous self-assembly into membrane-bound structures. These structures exhibit rudimentary metabolism but no reproduction or heritability. Which characteristic of life is the MOST significant barrier preventing these structures from being classified as living organisms?
Metabolism
Cellular organization
Reproduction and growth
Adaptation
Related Questions
What is illustrated by the statement ‘Nothing lives forever, yet life continues’?
Metabolism
Embryogenesis
Reproduction
Replication
Read the following statements:
A. Photoperiod affects reproduction in seasonal breeders, both plants and animals
B. Increase in body mass is considered as reproduction
C. Metabolism is a defining feature of all living organism without exception
D. Self consciousness is a defining property of every living organism
Choose the correct statements
A and B
B and C
A and C
C and D
A researcher observes an isolated system containing complex organic molecules undergoing spontaneous self-assembly into membrane-bound structures. These structures exhibit rudimentary metabolism but no reproduction or heritability. Which characteristic of life is the MOST significant barrier preventing these structures from being classified as living organisms?
Metabolism
Cellular organization
Reproduction and growth
Adaptation
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?
Presence of genetic material (DNA or RNA)
Ability to evolve and adapt to their environment
Inability to reproduce independently outside a host cell
Specific interaction with host cells
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?
No, because they are composed of organic molecules.
Yes, because they lack heritable genetic material yet exhibit a form of 'reproduction'.
No, because they interact with living organisms.
Yes, because they cause disease.
Reproduction is synonymous with growth in which of the following set of organisms?
Bacteria, unicellular algae and Amoeba
Bacteria, Amoeba and fungi
Unicellular algae and fungi
Unicellular algae and filamentous algae
Which of the following are considered as the twin characteristics of growth?
I. Responses to stimuli
II. Increases in mass
III. Increases in the number of individuals
IV. Increases in width
I and II
II and IV
I and III
III and IV
Reproduction is synonymous with growth in which of the following set of organisms?
Bacteria, unicellular algae and Amoeba
Bacteria, Amoeba and fungi
Unicellular algae and fungi
Unicellular algae and filamentous algae
In majority of higher animals and plants reproduction and growth are
Mutually exclusive events
Simultaneous events
Dependent events
Identical events
Which process is essential for the continuity of life?
Nutrition
Respiration
Reproduction
Excretion
