Which of the following statements is not true for connective tissues, glycoproteins, and glycolipids?
Correct answer: D. They are found in both plants and animals
- A. They are conjugated molecules of carbohydrates
- B. They have a role in the extracellular matrix of animals
- C. They are components of biological membranes
- D. They are found in both plants and animals
Explanation
Connective tissues are specific to animals, providing structure and support. Glycoproteins and glycolipids are found in cell membranes of both plants and animals, where they perform functions like cell recognition and signalling. Therefore, the statement that these molecules are found in both plants and animals is not true for connective tissues, making Option D the correct answer. Options A, B, and C correctly describe characteristics or roles of glycoproteins and glycolipids in biological systems and are not the answer.
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About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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