3901. Which of the following help cyanobacteria to locomote?
✅ B. Gas vesicles
Option A: Flagella Option B: Gas vesicles Option C: Both of these Option D: None of these Correct Answer : Gas vesicles Read more
Author: Sheeraz Ahmed – Page 196
3902. Cyanobacteria have ________ cell wall?
✅
Option A: Gram +v Option B: E. Option C: B. Gram v Option D: E. Correct Answer : Gram ve. Read more
3903. Who developed the vaccine against anthrax?
✅ A. Louis Pasteur
Option A: Louis Pasteur Option B: Edward Jennar Option C: Leuvenhoek Option D: Alexander Fleming Correct Answer : Louis Pasteur Read more
3904. Chemical substances used on living tissues that inhibit the growth of micro organism are called___________?
✅ A. Antiseptics
Option A: Antiseptics Option B: Disinfectants Option C: Antibiotics Option D: Vaccines Correct Answer : Antiseptics Read more
3905. Which of the following statement is incorrect about algae______________?
✅ A. Their zygote unlike plants is protected by parental tissue
Option A: Their zygote unlike plants is protected by parental tissue Option B: Their classification is based on pigment composition Option C: Most of them have different morphological forms in-different stages of their life cycle Option D: Almost all of them are aquatic Correct Answer : Their zygote unlike plants is protected by parental tissue Read more
3906. In which of the following pigments major energy reserves and cell wall are like plants?
✅ B. Chlorophyta
Option A: Rhodophyta Option B: Chlorophyta Option C: Phaeophyta Option D: Chrysophyta Correct Answer : Chlorophyta Read more
3907. The word Archaeobacteria (a division of bacteria) derived from Greek means___________?
✅ D. Ancient bacteria
Option A: True bacteria Option B: False bacteria Option C: Recent bacteria Option D: Ancient bacteria Correct Answer : Ancient bacteria Read more
3908. Who coined the term Animalcules for microorganisms like Bacteria and protozoa______________?
✅ D. Leeuwenhoek
Option A: Robert Koch Option B: Louis Pasteur Option C: Alexander Fleming Option D: Leeuwenhoek Correct Answer : Leeuwenhoek Read more
3909. Who discovered the bacteria causing tuberculosis and also developed various techniques of media preparation and maintenance of pure culture_____________?
✅ D. Leeuwenhoek
Option A: Robert Koch Option B: Louis Pasteur Option C: Alexander Fleming Option D: Leeuwenhoek Correct Answer : Leeuwenhoek Read more
3910. Which of the following statement is incorrect regarding germ theory of diseases postulated by Robert Koch_____________?
✅ C. The pure culture cannot produce the disease when inoculated into susceptible animal however the causative organism isolated from pure culture can do so.
Option A: A specific organism can always be found in association with a given disease Option B: The organism can be isolated and grown in pure culture in the laboratories Option C: The pure culture cannot produce the disease when inoculated into susceptible animal however the causative organism isolated from pure culture can do so. Option D: It is possible… Read more