instruction:
Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.
question:
The main role of chloroplasts is to conduct photosynthesis , where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energy - storage molecules ATP and NADPH while freeing oxygen from water . They then use the ATP and NADPH to make organic molecules from carbon dioxide in a process known as the Calvin cycle . Chloroplasts carry out a number of other functions , including fatty acid synthesis , much amino acid synthesis , and the immune response in plants . The number of chloroplasts per cell varies from one , in unicellular algae , up to 100 in plants like Arabidopsis and wheat .
answer:
Chloroplast

question:
In Greek mythology , Icarus ( the Latin spelling , conventionally adopted in English ; Ancient Greek : , Ikaros , Etruscan : Vikare ) is the son of the master craftsman Daedalus , the creator of the Labyrinth . Icarus and his father attempt to escape from Crete by means of wings that his father constructed from feathers and wax . Icarus ' father warns him first of complacency and then of hubris , asking that he fly neither too low nor too high , so the sea 's dampness would not clog his wings or the sun 's heat melt them . Icarus ignored his father 's instructions not to fly too close to the sun ; when the wax in his wings melted he tumbled out of the sky and fell into the sea where he drowned , sparking the idiom '' do n't fly too close to the sun '' .
answer:
Icarus

question:
Peptidoglycan , also known as murein , is a polymer consisting of sugars and amino acids that forms a mesh - like layer outside the plasma membrane of most bacteria , forming the cell wall . The sugar component consists of alternating residues of - ( 1 , 4 ) linked N - acetylglucosamine ( NAG ) and N - acetylmuramic acid ( NAM ) . Attached to the N - acetylmuramic acid is a peptide chain of three to five amino acids . The peptide chain can be cross-linked to the peptide chain of another strand forming the 3D mesh - like layer . Peptidoglycan serves a structural role in the bacterial cell wall , giving structural strength , as well as counteracting the osmotic pressure of the cytoplasm . A common misconception is that peptidoglycan gives the cell its shape ; however , whereas peptidoglycan helps maintain the structural strength of the cell , it is actually the MreB protein that facilitates cell shape . Peptidoglycan is also involved in binary fission during bacterial cell reproduction .
answer:
Peptidoglycan