The Living World Question 112
Living systems have a high degree of tendency for opposing entropy. Reason: Living systems are able to overcome entropy.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: C
Solution:
Second law of thermodynamics states that when a living or non living system is left to itself, then it tends to increase its disorder or randomness i.e. entropy. So entropy is the degree of unavailable or useless energy. Living systems carry a number of chemical reactions and physical changes.
Since no energy transfer or transformation is 100% efficient, there is a regular loss of energy, thus increasing entropy. Living systems overcome entropy by continuous input of usable or free energy. The living organism obtains this required free energy either from radiant energy by photosynthesis (e.g. plants) or from ready made food (e.g. animals).
BETA
