Get premium membership and access revision papers, questions with answers as well as video lessons.

Iph2206:Pathology Question Paper

Iph2206:Pathology

Course:Bachelor Of Science In Public Health

Institution: Meru University Of Science And Technology question papers

Exam Year:2010

INSTRUCTIONS: Answer questions one and any other two questions
QUESTION ONE - (30 MARKS)
a) Spore germination is a preliminary stage to fungal penetration into the host tissue.
Explain the three most important environmental factors that aid spore germination.
(9 Marks)
b) Explain any five practical benefits of storing fruits and vegetables under controlled
atmosphere. (10 Marks)
c) Write short notes on postharvest disease initiation in fruits and vegetables. (5 Marks)
d) Explain three types of packaging employed in fresh produce. (6 Marks)
QUESTION TWO (20 MARKS)
Explain;
a) Modified atmosphere packing. (5 Marks)
b) Controlled atmosphere storage. (5 Marks)
c) The influence of fruit ripening on susceptibility of harvested fruits and vegetables to
decay. (5 Marks)
d) The difference between hydro-cooling and vacuum cooling in storage of fruits and
vegetables. (5 Marks)
QUESTION THREE (20 MARKS)
Write short notes on;
2
a) Pathogen penetration following physiological damage of a fruit. (5 Marks)
b) Pathogen penetration following a primary pathogen attack in a fruit. (5 Marks)
c) Influence of pH on microbial attack of fruits and vegetables. (5 Marks)
d) Influence of inoculum level on disease development. (5 Marks)
QUESTION FOUR (20 MARKS)
a) Name any five important genera of moulds responsible for postharvest diseases of fruits.
(6 Marks)
b) Name any two genera of bacteria that cause soft rot of vegetables and fruits.
(2 Marks)
c) Explain any six defence mechanisms employed by a plant or plant organ in counteracting
a pathogen attack. (12 Marks)
QUESTION FIVE (20 MARKS)
Explain the postharvest disease control and prevention under the following headings;
a) Chemical control. (14 Marks)
b) Prevention of injury. (6 Marks)

Iph2206:Pathology Question Paper

More Question Papers

Popular Exams