How is mood disorder related to suicidal ideation? Mood disorders typically improve one's resilience against suicidal thoughts. Individuals with mood disorders, particularly major depressive disorder, are at a higher risk for developing suicidal ideation due to feelings of despair and hopelessness. Suicidal ideation is unrelated to mood disorders but is influenced by external factors only. Mood disorders lead to a decreased perception of pain, which reduces suicide risk.

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

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

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

(B) State TWO ways in which flagellum helps a microorganism survive in an open environment. (2 ma All rights reserved. No part of this publication may be reproduced, stored in a retrieval sys transmitted in any form or by any means, electronic, mechanical, photocopying, reco otherwise, without the prior written permission of the Institute of Technical Education, Singapo Institute of Technical Education has made every effort to trace copyright holders, but if inadvertently overlooked any, we will be pleased to make the necessary arrangements a

(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.