MDCAT Biology Chapter 3 MCQ's Test With Answers

MDCAT Biology Chapter 3 MCQ's Test

Sr. # Questions Answers Choice
1 Which of the following is free living zooflagellates: Trichonympha Trypanosoma Choanoflagellates Entamoeba
2 Which of the followings are called kelps: Diatoms Brown algae Red algae Green algae
3 Phytophthora cause which of the following diseases in potato: Fire blight Late blight Red rots Mildew
4 Phytophoto is cause which ofthe following diseases in potato: Fire blight Late blight Red algae Green algae
5 Photosynthetic protists contribute percentage of global photosynthesis: 80% 70% 50% 30%
6 The photosynthetic protists are: Ciliates, zooflagellates and dinoflagellates Ceratium, dinoflagellates and diatoms Euglenoids, diatoms and dinoflagellates Diatoms, euglenoids and slims moulds
7 Red-tide is caused by: Gonyaulax Slime molds Diatm Ulva 
8 The group algae possesses representative belonging to kingdom. Protista  Monera Plantae Slime molds
9 Name the organism in which the distinction of  plant animal disappears. Euglena  Slime molds Both Euglena and slime moulds Choanoflagelates
10 Which protozoan resembles the form which the animals evolved: Amoeba Euglena Plasmodium Paramecium
11 Which option best describes the cysts: They are dormant and not heat resistant They are thick walled and desiccation resistant forms They develop during differentiation of vegetative cells which can germinate under suitable condition All of the above options 
12 Which one first the definition of spores: There are metabolically very active bodies and are produced at a late stage of cell growth There are metabolically dormant bodies produced at the start of cell growth They are metabolically dormant bodies and are produced t late stage of cell growth Heat sensitive
13 Which one of the following is the best explanation of peptidoglycan: A frame work of lipoid cross linked with peptide fragments A frame work of glycan cross linked with lipids A framework of glycan cross linked with lipids A framework of glucose cross linked with lipids
14 Which of the following option carries the exact chemical composition of gram positive bacteria: Lipopolysaccharide - Peptidoglycan - Teichoic acid -Lipids Peptidoglycan - Lipoproteins - Teichoic acid -Lipid Peptidoglycan - Lipopolysaccharides - Teichoic acid - Lipid Peptidoglycan - Lipoteichoic acid - Teichoic acid - Lipid
15 The exact sequence in the staining of bacteria is as: Crystal violet - alCohol- Safranin - Iodine Iodine  - Alcohol - Crystal Violet - Safranin Crystal violet - Iodine - Alcohol - Safranine  Crystal violet - Iodine - Safranin - Alcohol
16 Except to spierillia, bacillus and coclc, bacteria are found in which of the shapes: Trichome formation and sheathed Stalked and square Star shaped and spindle shaped All of the above
17 Which of the following is not the postulates of Germ theory of disease: A specific organism can always be found in association with give disease The organism cannot be isolated and grown in pure culture in the laboratory The pure culture will produce  the disease when inoculated into susceptible animal it is possible to recover the organism in pure culture form experimentally infected animal
18 Which of the following bacteria  are much large than the average eukaryotic cell: Acanthurus nigrofuscus Escherichia coli Epulopiscium fishelsoni Streptococci 
19 Which of the work of Robert Koch help him to formulate Germ theory of disease: He isolated tobacco mosaic virus from the leaf of tobacco plant He isolated a small protozoans in the blood of sheep that had died of anthrax He isolated rod shaped bacteria  with squarish end form the blood of sheep that had died of anthrax He worked on smallpox
20 Antone van leeuwenhoek called animalcules to the following. bacteria and fungi Fungi and algae Bacteria and protozoa Protozoa and algae 
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