Consider a theoretical organism that utilizes silicon as its primary structural element instead of carbon. Assuming all other characteristics of life are present, which fundamental biological process would be MOST significantly challenged by this substitution?
Cellular respiration
Formation of complex, stable biomolecules
Active transport across membranes
Photosynthesis
Related Questions
Consciousness is regarded as a defining property of living organisms. Which example best demonstrates consciousness in animals?
A river flowing downstream
Clouds forming in the sky
A dog responding to its owner's call
Crystals forming in a saturated solution
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
I and III are true
I and II are true
Only III is true
All are true
All living organisms maintain a constant internal environment despite external changes. This process is known as:
Metabolism
Adaptation
Homeostasis
Reproduction
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.
A defining feature of living organisms is their ability to respond to stimuli. Which of these is an example of a plant responding to a stimulus?
A rock rolling down a hill
Water evaporating from a puddle
Phototropism in a sunflower
Salt dissolving in water
Which of the following processes demonstrates adaptation in living organisms?
A stone weathering over time
Formation of rust on iron
Development of camouflage in a chameleon
Sugar dissolving in water
In which of the following, metabolic reactions take place?
In living organism only
Both in living and non-living organism
In isolated cell free systems
Both (1) and (3 )
The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for
reproduction
growth and movement
response to stimuli
invitro reactions
Growth in living organism is from
Outside
Inside
Both 1 and 2
None of the above
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
I and III are true
I and II are true
Only III is true
All are true
