According to the selection, which two of the following are characteristics of the Greenland shark's living conditions? (A) low light levels (B) frigid temperatures C) coral reefs (D) high sunlight (E) warm locations

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

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

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) \( 128 \mathrm{cmu} / \mathrm{cm}^{2} \)

L'INTOSSICAZIONE DA BOTULISMO PUO VERIFICARSI A SEGUITO DEL CONSUMO DI QUALI ALIMENTI? SOTT'ACETI ALIMENTI CONSERVATI SOTTO SALE CONSERVE SOTT'OLIO

(A) State ONE example of selective media that can be used to isolate [3 marks] EACH of the following microorganisms. (i) Gram positive bacteria. (ii) Staphylococci spp. (iii) Gram negative bacteria.