Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

problem 1) Classify the following diseases under the headings 'Transmissible' and 'Non-transmissible'.
lung cancer, whooping cough, rickets, arthritis, appendicitis, food poisoning, tuberculosis,   measles, diabetes, anaemia, syphilis, influenza, AIDS, coronary heart disease, haemophilia

problem 2)(a) In droplet infection (i) where do the droplets come from, (ii) what infective agents might they contain?

(b) Give two exs of diseases normally spread by droplets.

problem 3)(a) Give two exs of diseases which can be spread by contaminated drinking water.

(b) How can the spread of such diseases be prevented?

problem 4) Suggest three ways in which food might become contaminated by harmful bacteria.

problem 5) Which one of the following is least important in preventing the contamination of food?

(a) Keeping food away from flies.
(b) Washing the hands before preparing food.
(c) Not coughing or sneezing over food.
(d) Not smoking while preparing food.

problem 6) The following events describe an outbreak of food poisoning in a factory canteen. Put the events in the appropriate order.

(a) Pathogenic bacteria in intestine.
(b) Unwashed hands prepare food.
(c) Kitchen worker has intestinal disease.
(d) Outbreak of food poisoning.
(e) Pathogenic bacteria in faeces.
(f) Pathogenic bacteria get into food.
(g) Hands not washed after defecation.
(h) Faeces expelled in lavatory.
(i) Food ingested by healthy people.

problem 7) Which one of the following is the most appropriate description of a contagious disease?

A contagious disease is one which is spread by

(a) contaminated food,

(b) contaminated drinking water,

(c) contact with an infected person,

(d) droplets from an infected person.

problem 8) In the air passages, a layer of ….. (A) ….. traps bacteria. This ….. (B) …..is carried away from the lings by the action of …..(C) …..cells which line the air passages.

problem 9) The ….. (A) ….. layer of the skin is a barrier to the entry of bacteria. Also the …..(B) ….. glands and ….. (C) ….. glands produce bacteriocidal substances. If bacteria get through damaged skin they are attacked by ….. (D) …..and ….. (E) …..in the blood.

problem 10) What is the purpose of the gauze mask worn by surgeons during an operation?

Biology, Academics

  • Category:- Biology
  • Reference No.:- M95234

Have any Question? 


Related Questions in Biology

One major trend in the world today is green technology

One major trend in the world today is "green technology". Green technology is basically a term to encompass environmentally friendly technologies and inventions. Topic:  In this discussion board provide us with a link to ...

Reflection prompts1 what were your initial expectations

Reflection Prompts 1. What were your initial expectations about the Service Learning project in this class? Have these expectations changed? How? 2. What about your community involvement has been an eye-opening experienc ...

1 how does the structure of dna double helix determine how

1. How does the structure of DNA (double helix) determine how the genetic information is passed on? 2. How does the cell use the information contained in the DNA to construct proteins (transcription and translation)?

Clearly explain why health outcome is so much more than a

Clearly explain why health outcome is so much more than a combination of health care, individual behaviors, and/or genetics?

What involves the fusion of the two nuclei in the

What involves the fusion of the two nuclei in the dikaryotic cell to form a single diploid nucleus?

What effect did grounding of the planes after 911 have on

What effect did grounding of the planes after 9/11 have on daily temperature ranges? Why was temperature affected?

Are there some bacteria that are not easily stained by the

Are there some bacteria that are not easily stained by the gram stain? Can you give an example of a bacterium that might not show up as gram-positive or gram-negative after being stained by Gram's method?

Why are using both controlled and comparative experiments

Why are using both controlled and comparative experiments important?

In an experimental template having perfectly placed 5

In an experimental template having perfectly placed 5 nucleosomes there is a single EcoR1 site buried near dyad axis of the 3rd nucleosome. Is it possible for a modeller to make this site accessible without disturbing an ...

What type of reproduction involves union of sex cells and

What type of reproduction involves union of sex cells and their nuclei?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro