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
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 )
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
Growth in unicellular organisms can be observed by
Counting the mass of cultured cells
Analysing the amount of nutrient absorb by living organism
Growth can not be observed
In vitro culture by simply counting the number of cells under microscope
Assertion: (A)Metabolism refers to the sum of chemical reactions that occur with in living organisms. Reason : (B)Metabolic reactions occur simultaneously inside living organisms
Both (A), (B) are correct
(B) only correct (A) is not true
(A) is only correct (B) is not true
Both (A) and (B) are not correct
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
Which process is essential for the continuity of life?
Nutrition
Respiration
Reproduction
Excretion
Increase in body mass can be considered a criterion for growth
True
False
Sometimes True
Cannot be determined
All living organisms show:
Consciousness
Locomotion
Response to stimuli
Photosynthesis
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
Growth in living organisms is due to:
Increase in cell number and size
Accumulation of water
Synthesis of new protoplasm
Increase in non-living matter
