A biologist discovers a primitive organism new to science. Which of the followin

Question

A biologist discovers a primitive organism new to science. Which of the following would be the best prediction about its molecular makeup?

E. Its membranes will contain phospholipids.

Could you explain why?

A. Its proteins will serve as the primary energy storage molecules. B. Its monosaccharides will serve as important structural molecules. C. Its DNA will have unusual nucleotides. D. Its proteins will contain some of the same amino acids found in humans.

E. Its membranes will contain phospholipids.

Could you explain why?

Explanation / Answer

E - it's membranes will contain phospholipds. Phospholipds are the primitive structure found in almost all the biological membrane.

Organisms that have ancient body designs and have not changed much are called primitive designs and organism is called primitive organism.

A is wrong because protein doesn't serve as primary energy storage molecules in primitive organism. It's the carbohydrates.

B is wrong because monosaccharides don't serve as structural molecules, polysaccharides serve as structural molecule

C is wrong because primitive organisms have normal four A T G AND C Nucleotides.

D is wrong because primitive organisms have common 20 amino acids which are found in human. Almost all not some of the the amino acids will be same. One or two might differ in human.

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