A. They are used against microorganisms
B. They are always effective against bacteria
C. They are used in diseases like tuberculosis and pneumonia
D. They are derived from bacteria only
Related Mcqs:
- Which of the following pathogen type cause disease that can be treated with antibiotics ?
A. bacteria
B. fungi
C. virus
D. none of these - Which of the following statement is incorrect about Glyoxisomes?
A. They contain enzymes which help in conversion of fatty acids into carbohydrate
B. They are abundant in soyabeans but absent in pea.
C. They are present through out life of a plant and provide them whth energy through Glyoxylate cycle.
D. They are signle membranous organelles - Which of the following statement is incorrect about RNA_________________?
A. The pentose sugar in it is Ribose.
B. It contains Adenine Guanine Thymine and Cytosine
C. It is present in the nucleoli
D. It may be folded back on itself to give double helical characteristics. - Which of the following statement about AIDS is incorrect:
A. is a host specific disease
B. An infected mother cannot pass the virus to her baby.
C. Results in enlargement of lymph nodes
D. Can be prevented. - Which of the following statement is incorrect about algae______________?
A. Their zygote unlike plants is protected by parental tissue
B. Their classification is based on pigment composition
C. Most of them have different morphological forms in-different stages of their life cycle
D. Almost all of them are aquatic - Which of the following statement about alternation of generation in bryophytes is incorrect?
A. It involves alternation of morphologically different generations
B. Their gametophyte is independent while sporophyte depends upon gametophyte for nutrition.
C. Both the gametophyte and sporophytes are haploid generations thus can produce haploids gametes to continue the diploid number on fertilization
D. Spore formation occurs through meiosis - Which of the following statement about the head of a chlorophyll molecule is incorrect?
A. It is a porphyrin ring or tetrapyrrole ring structure
B. It is flat, square and light absorbing
C. Composed of carbon and nitrogen atoms with Magnesium as central metal ion, which is coordinated with nitrogen.
D. It is hydrophobic - Which of the following statement is incorrect about Molluscans?
A. They are surrounded by single or double pieces of hard skeleton.
B. Their shell grows as the animal grows.
C. They have hydrostatic skeleton.
D. They move by tube feet - Which of the following statement about an arthropod exoskeleton is incorrect?
A. It permits gaseous exchange
B. It contains joints, for the same purpose as present in human skeletal system
C. It provides muscle attachment
D. Like all the other types of exoskeleton, they lack sensation - Which of the following statement about Homeostasis is incorrect?
A. There is a definite control system that regulates the homeostatic activities
B. Homeostatic mechanisms keep the internal environment fixed despite of wide changes in external environment
C. Because of this the fluctuations of internal environment are of extremely narrow range as compared to that of external environment
D. All are correct
The correct answer to the question: "Which of the following statement is incorrect about antibiotics?" is "They are derived from bacteria only".
