Biology Fsc Part 1 Online Test With Answers

Biology Fsc Part 1 Online Test

Sr. # Questions Answers Choice
1 Which bacterial posses pore made up of porin protein, for spacific molecules. Gram negative Gram positive Gram negative Both a and b
2 Gram positive bacteria stain purple because they retain  Violet dye Secondary dye Safranian Alcohol
3 The cell wall of Gram positive and gram negative bateria differs in. Gram positive contain thin layer of peptidoglycan Gram negative contain less lipid content  Gram negative contain lesser periplanic space Gram positive contain thick layer of peptidolgycan and less lipid content
4 The major component of bacterial cell wall is. Lecithin Peptidoglycan Disaccharides All of above
5 The HIV capsid contains. Single stranded DNA and reverse transcriptase Single stranded RNA and reverse transcriptase Double stranded DNA and integrate Double Stranded RNA andRNA Polymerase
6 The enzyme responsible for conerting HIV RNA into DNA is RNA polymeras Reverse transcriptase DNA Helicase Integrase
7 Which one of the following is not nitrifying bacteria. Pseudomonas Nitrobacter Nitrosomonas Azotobater
8 Which of the followig bacteia structures is responsible for detectingand responding to chemicals. Capsule Pili Flagella Ribosomes
9 Which type of motility in bacteria is mediated by pili Brownian movement Twitching motility Swarming motility gliding motility
10 What is the primary function of flagella in bacterial cells Motility DNA replication  Cell division  Protein synthesis
11 Which group of bacteria is known as a good source of antibiotics. Omnibacteria Actinomycetes Spirochaetes Pseudomonas
12 In bacterial cells, respiration occurs at Mitochondria Cell  membrane Ribosomes Endoplasmic reticulum
13 The bacterial chromosome is typically Linear, double stranded DNA Circular, doule stranded DNA Circular,single stranded RNA Liner,single. sranded DNA
14 Which of the following component is not found in all kinds of bacteria. Capsule Cell memberane Nucleoid Ribosomes
15 The exoskeleton of arthropods is primarily composed by Chitin Calcium carbonae  Cellulose Silica
16 The remote scnsing method uses. Satellite or drone imagery quadrates to count Observation and recorrding from fixed point Marking and recapturing
17 sympatric speciation differs from allopatric speciation because it. Requires geographicla isolation  Is driven only by mutation rates Involves only small populations Occurs through niche differentiation or polyploidy without physical barriers
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