biology : Photosynthesis

May 20th, 2015
Studypool Tutor
Price: $10 USD

Tutor description

1. The diagram below shows the process that occurs in photosynthesis. (a) How do we call the cycle above? (b) Name the substances indicated by__________________________.2. Describe three factors that limit the rate of photosynthesis in the natural environment

Word Count: 1449
Showing Page: 1/14
1. Using a table, describe each of the five groups of pathogens mentioned under the following headings: characteristics, example of diseases in humans, examples of diseases in crop plants. 20 marks pathogencharacteristicsExample of disease in humanExample of disease in cropsVirus They are minute particles composed of nuclear material enclosed in a protein coatCommon cold, influenza, chicken poxs and cold sores, polio, herpesYellow mosaic, bunchy top of pawpaw, ratoon stunting of sugar cane Bacteria Single cells lacking a true nucleus. Produce enzymes which destroys hosts cellsSmallpoxs, cholera, typhoid, tetanus, whooping cough, syphilis, Bacteial wilt of tomato, bacterial spot of pepper, leaf scald of sugar caneFungiBody consists of a network of hyphae. Destroys host tissues bt extracellular digestionAthletes foot, ringworm, aspergillosis, histoplasmosis, thrushSmut, armillaria root rot, black rot, bitter rot, anthracnose of yam and mangoProtozoans Single cells with a true nucleus.Amoebiasis, giardiasis, african sleeping sickness2. Describe one example of each of the four main types of diseases under the following headings:Disease Cause Symptoms and signsMethod of prevention Pathogenic diseaseA virus invades the body by contact with infected personHigh fever, tiredness, headache, vomitingPrevent over rowding and exposure to the virus.Deficiency diseaseA deficiency disease is caused by a shortage of a parti

Review from student

Studypool Student
" Outstanding Job!!!! "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1830 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors