Scenario: Several residents in your care have come down with a nasty, intestinal virus that causes diarrhea. One resident, Mrs. Grande, is so weak that she was unable to get out of bed in time and soiled her clothing and bedding. Reflection: 1. Where is the most likely portal of exit for this pathogen? 2. What are six infection control precautions/practices you take when cleaning up Mrs. Grande that will keep this virus from spreading to other residents, your co-workere, and yourself? 3. List three factors that can make a person more likely to get an infection

(C) State TWO ways in which fermentation process helps to improve [2 marks] quality of food products.

8 Which of the following is a type of universal media? (A) MacConkey Agar. (B) Baird-Parker Agar. (C) \( \quad \) Mannitol Salt Agar. (D) Trypticase Soy Agar. 9

Glycerol a) Name the: (i) Process \( X \) (ii) Enzyme \( Y \) (iii) Molecule Z

Em 1950, a população de girafas numa região do Quénia era de 4600 indivíduos. Sabe-se que a taxa de decrescimento da população é \( 3,5 \% \) por década. Admitindo que a taxa de decrescimento se mantém constante a longo prazo, responda às questões que se seguem.

Calculate the cfu/cm \( \mathrm{cm}^{2} \) for a tested surface of 4 cm in length and 3 cm in width if the number of colonies on the agar plate is 96 cfu. (A) \( 8 \mathrm{cfu} / \mathrm{cm}^{2} \) (B) \( 12 \mathrm{cmu} / \mathrm{cm}^{2} \). (C) \( 72 \mathrm{cmu} / \mathrm{cm}^{2} \) (D) \( 128 \mathrm{cmu} / \mathrm{cm}^{2} \)