5 The popularity of herbal medical remedies has surged recently, Most of these r

Question

5 The popularity of herbal medical remedies has surged recently, Most of these remedies claim that, because they are derived from plants, they are "all natural" and "drug-free." Given the aspirin synthesis you just performed, what do you think of such claims? 6 Detergents have a ergents have a structure very similar to the phospholipids in the plasma membrane. Explain why you used detergents in the first step of your DNA extraction. (Hint: Think about the rule that "like dissolves like.?") 7 The enzymes in meat tenderizer are called proteases, which degrade proteins. Why must we have proteases in this extraction? (Hint: Think about the structure of chromatin. What does it contain in addition to DNA?) Exercises for the Anatomy and Physiology Laboratory

Explanation / Answer

5. Not true in all case (Info: aspirin or salicylic acid is obtained from willow plant)

but in this case, aspirin contains a phenyl group which is highly irritating to the stomach. so this can be replaced by acetyl group which will create less irritation in the stomach.

6. Detergents have at least two fundamental properties, namely a water-soluble hydrophilic head and a hydrophobic (fat soluble) tail. These properties allow detergents to enter into and then disperse membranes.CTAB (cetyltrimethylammonium bromide) is a cationic detergent widely used in the isolation of DNA from plants. So the cell membrane along with nuclear membrane broken down as a result cell lysis process is done.

7. Though proteins are insoluble in water so can't be broken down and can't be absorbed into animal body fluid. So we need proteases (are enzymes that specialize in hydrolyzing proteins into their corresponding amino acids breaking the peptide bond between amino acids). Collagen is found in an animal tissue. Proteases work to chop off collagen and make the meat less rigid.

Related Questions

Navigate

• Browse (All)
• Browse 5
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.