These are true or false questions answer them please i will give brainlist 18. ATP is a source of usable energy for the cells.

19. ATP is made during photosynthesis.

20. ATP is made during respiration.

21. ATP is a waste product of respiration and photosynthesis.

22. Photosynthesis and respiration form a cycle.

true 18. ATP is a source of usable energy for the cells.

the bond between the 2nd and 3rd phosphate group is broken to release energy

true 19. ATP is made during photosynthesis.

in the light dependent reactions of the photosynthesis the hydrogen protons pumped in during the electron transport chain are used to synthesize ATP

true20. ATP is made during respiration.

during anaerobic resipiration and aerobic respiration ATP is produced

false21. ATP is a waste product of respiration and photosynthesis.

ATP is not a waste product, it plays an important role in photosyntheis, the main role of respiration is ATP production

true 22. Photosynthesis and respiration form a cycle.

since the reaction of photosynthesis is

6CO2+6H2O-->C6H12O6+6O2

and the reaction of respiration is

C6H12O6+6O2-->6CO2+6H20

you can see that the producs of photosynthesis are used in aerobic respiration and the products of aerobic respiration are used in photosynthesis so the two form a cycle

individual oxygen atoms are formed during photosynthesis.-c.

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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explanation: