Bioactive molecules have diverse medical and industrial uses. Statins from {Monascus purpureus} lower cholesterol, reducing cardiovascular risks. Cyclosporin A from {Trichoderma polysporum} suppresses immune responses, vital for organ transplants.
Penicillin, an antibiotic from {Penicillium notatum}, combats bacterial infections.
Citric acid from {Aspergillus niger} serves as a food preservative and additive. Lactic acid from {Lactobacillus} aids food preservation.
These microorganisms' bioactive molecules highlight their significance in medicine, agriculture, and industry.
If vector \( \mathbf{a} = 3 \hat{i} + 2 \hat{j} - \hat{k} \) \text{ and } \( \mathbf{b} = \hat{i} - \hat{j} + \hat{k} \), then which of the following is correct?