NTS Biology Mcqs
This Set of Multiple choice questions and answers focuses on study of Biology Mcqs that have appeared in recents NTS Test for various Jobs and interviews. You should practice our Multiple choice question to Pass any job test and interview related to Biology subjecs.
32. Of the following which one is not found in series proterostomia?
Annelida
Arthropoda
Mollusea
Echinodermata
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33. Deoxygenated blood first enters in _________ part in fishes?
Sinus venosus
Right atrium
Left atrium
Conus arteriosus
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34. The survival of an animal depends upon its ability to take some from its environment____________?
Chemicals
Hydrocarbons
Organic molecules
Inorganic molecules
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35. Which of the following statement is incorrect regarding germ theory of diseases postulated by Robert Koch_____________?
A specific organism can always be found in association with a given disease
The organism can be isolated and grown in pure culture in the laboratories
The pure culture cannot produce the disease when inoculated into susceptible animal however the causative organism isolated from pure culture can do so.
It is possible to recover the organism in pure culture from the experimentally infected animals
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36. The membrane of vacuoles is known as__________?
Vacuoloplast
Tonoplast
Tanoplast
All of these
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37. Gaseous exchange through the skin is known as ______________ respiration?
Cuticular
Cutaneous
Skin
Pulmonary
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38. Ribose is an example of___________?
Trioses
Tetroses
Pentose
Hexose
39. Example of bacteria requiring low concentration of oxygen is__________?
Campylobactor
spirocheta
E-coli
Pseudomonas
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40. An enzyme which can convert single stranded RNA into double stranded viral DNA is called____________?
DNAase
RNAase
DNA polymerase
Reverse Transcriptase
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41. Exoskeoeton of coelenterates terates is made up to__________?
Calcium
Silica
Chitin
Both A & B
42. In cell fractionation various components of cells including its organelles can be isolated in different layers depending upon____________?
Their physical properties like size & weight.
Physical properties of the medium like its density.
Their electrical properties like their charges
Both a and b
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43. Which of the statement about cell membrane is not true?
It contains protein molecules embedded in lipid bilayer
It is a differentially permeable membrane.
It contains charged pores thus ions being charged particles cross cell membrance much easier than neutral particles.
It may get infolded to engulf solid or liquid material.
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44. Which statement correctly describes the transcription of DNA?
It produces another DNA molecule
It produces mRNA
It is a semi conservation process
It occurs at surface of ribosomes
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45. The Study of organisms inhabiting the sea and Ocean and the physical and chemical characteristics of their environment is:
Social Biology
Marine Biology
Environmental Biology
Fresh Water Biology
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