INTRODUCTION
CELL STRUCTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Lipids
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Carbs
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Proteins
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Nucleic Acids
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Detailed explanation-1: -So, the correct answer is ‘Lignin’.
Detailed explanation-2: -Final Answer: Proline is not a constituent of the cell membrane.
Detailed explanation-3: -Nucleic acids are not structural components of cell membranes (ribosomes and nucleus are the main places where they are found). However, being open system, cell exchanges chemicals with its surrounding and cellular membrane can transport nucleic acids as well.
Detailed explanation-4: -Proteins are made of carbon, hydrogen, oxygen, and nitrogen (CHON). Nucleic acids such as DNA and RNA contain carbon, hydrogen, oxygen, nitrogen, and phosphorus (CHON P). The body also needs trace amounts of other elements such as calcium, potassium, and sulfur for proper functioning of muscles, nerves, etc.
Detailed explanation-5: -Cell wall and chloroplasts are not present in the animal cell.