MDCAT Biology Chapter 3 MCQ's Test With Answers

MDCAT Biology Chapter 3 MCQ's Test

Sr. # Questions Answers Choice
1 The cell walls of archaeo bacteria are composed of: Proteins Glycoproteins Polysaccharides All a, b, c
2 By Gram staining technique, gram positive bacteria are stained: Pink Purple Orange Yellow
3 Christain Gram developed the technique of: DNA staining Feulgen reaction Gram staining RNA staining
4 Cocci bacteria very rarely have: Cilia Cirri Flagella Mitochondria
5 Examples of spiral shaped bacteria are: Vibrio Hyphomicrobium Both a & b Campylobacter
6 Vibrio is curved or comma shaped: Coccus Rod Bacillus Spiral
7 Diplobacilli occur in: Pairs Tetrad Sarcina Chains
8 The diameter ranging 0.75 to 1.25 u has been observed in: Staphylococci Streptococci Diploccci Both a & b
9 Pasteur's main achievements are the development of vaccines for disease: Anthrax Fowl Cholera Rabies All a, b, c
10 In Greek the word pro means "before" and crayon means: Cell Cytoplasm Nucleus After
11 Trichomes have at interval slightly large, round, light yellowish thick walled cells called: Akinetes Heterocysts Hormogonia Spores
12 Many species of cyanobacteria form: Water blooms Water blossome Water flowers Water crust
13 Oscillatoria and few other cyanobacteria can be used for: Bioremediation Genetic experiments Pollution indication Nitrogen fixation
14 In cyanobacteria reproduction occurs by: Hormogonia Akinetes Heterocysts All a, b, c
15 Phycocyanin pigment is predominant phycobilin of: Bacteria Cyanobacteria Diatoms Golden brown algae
16 In cyanobacteria, photosynthetic pigments and electron transport chain components are located in thylakoid membranes linked with particles called: Phycobilisomes Centrosomes Phycobilin Erythrosomes
17 The photosynthetic system of cyanobacteria closely resembles that of eukaryotes because they have: Chlorophyll a Photosystem II Xanthophylls Both a & b
18 In cyanobacteria, filaments consisting of trichomes are surround by: Mucilaginous covering Mucilaginous wall Mucilaginous envelope Mucilaginous sheath
19 THe cyanobacteria are the largest and most diverse group of photosynthetic bacteria which is previously known as: Red Algae Green Algae Blue green Algae Brown Algae
20 Misuse of antibiotic such as penicillin can cause: Allergic reactions Headache Deafness Mental retardness
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