The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Cell membrane consists of:   (A) Lipids and proteins   (B) Lipids only   (C) Protein only   (D) None of the above
['(A) Lipids and proteins <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Lipids and proteins \n (B) Lipids only \n (C) Protein only \n (D) None of the above <> possible answers', '  Cell membrane consists of: <> context@']