Biology General Knowledge Questions and Answers

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Biology General Knowledge Questions and Answers
Q :  

Penicillin is obtained from? 

(A) Algae

(B) Fungus

(C) Yeast

(D) Lichen


Correct Answer : B
Explanation :

Penicillin is obtained from fungi, specifically a group of molds known as Penicillium. The discovery of penicillin, one of the first widely used antibiotics, is credited to Sir Alexander Fleming in 1928. Fleming observed that the mold Penicillium notatum produced a substance that could inhibit the growth of bacteria. This substance was later named penicillin and became a groundbreaking antibiotic in the field of medicine, revolutionizing the treatment of bacterial infections. Therefore, the correct answer is (B) Fungus.


Q :  

Which of the following are the sweetest sugars? 

(A) Fructose

(B) Maltose

(C) Sucrose

(D) Glucose


Correct Answer : A
Explanation :

Fructose is often regarded as the sweetest sugar among the options provided. It is a natural sugar found in fruits, honey, and some vegetables. Fructose is sweeter than glucose, sucrose (which is a combination of glucose and fructose), and maltose. Due to its high sweetness level, fructose is commonly used as a sweetener in various food products and beverages.


Q :  Plants absorb dissolved nitrates from soil and convert them into

(A) proteins

(B) free nitrogen

(C) urea

(D) ammonia


Correct Answer : B

Q :  

Which of the following was the first antibiotic discovered by Alexander Fleming in 1928?

(A) Penicillin

(B) Prontosil

(C) Streptomycin

(D) Teracyline


Correct Answer : A
Explanation :

The first antibiotic discovered by Alexander Fleming in 1928 was:

(A) Penicillin

Alexander Fleming's discovery of penicillin revolutionized medicine by introducing the first widely used antibiotic, which proved effective against a variety of bacterial infections.


Q :  

The scientific study of insects is known as:

(A) Ichthyology

(B) Entomology

(C) Parasitology

(D) Malacology


Correct Answer : B
Explanation :

Entomology is the scientific study of insects. It involves the examination of the biology, behavior, ecology, taxonomy, physiology, and evolution of insects. Entomologists, the scientists who specialize in this field, study a vast and diverse group of organisms, which make up the largest class of animals on Earth. The knowledge gained through entomology has wide-ranging applications, from understanding ecosystems and biodiversity to pest management and forensic entomology.



Q :  

The study of properties and method of biological systems found in nature and use of this knowledge in mechanical world is known as –

(A) Bionics

(B) Bionomics

(C) Bionomy

(D) Biometry


Correct Answer : A
Explanation :

The study of properties and methods of biological systems found in nature and the application of this knowledge in the design and improvement of artificial systems is known as:

(A) Bionics

Explanation:

Bionics: Bionics is an interdisciplinary field that combines biology and engineering. It involves studying natural systems to understand their design and functionality and then applying this knowledge to create or improve artificial systems. The goal is to develop technologies inspired by nature. For example, designing a robot based on the principles observed in animal locomotion or creating materials inspired by the structure of biological tissues.

The other options:


Bionomics: This term is more commonly associated with the ecological study of organisms and their relationships with each other and their environment.

Bionomy: This term is not commonly used, and its meaning can vary in different contexts.

Biometry: Biometry usually refers to the statistical analysis of biological data.

Therefore, the correct answer is (A) Bionics.


     

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    Rajesh Bhatia

    A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.

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