- Biology Notes for UPSC IAS Prelims (Part I)
- Biology - Home
- Biology - Structure and Functions
- The Fundamental Unit of Life
- Biology - Tissues
- Biology - Animal Tissue
- Diversity in Living Organisms
- Biology - Plantae Kingdom
- Biology - Animalia Kingdom
- Biology - Vertebrata
- Biology - Transportation in Humans
- Biology - Transportation in Plants
- Biology - Excretion
- Biology - Control and Coordination
- Biology - Hormones in Animal
- How do Organisms Reproduce?
- Biology - Sexual Reproduction
- Biology - Reproduction in Animals
- Reaching the Age of Adolescence
- Biology - Heredity and Evolution
- Biology - Life Processes
- Biology - Respiration
- Microorganisms: Friend and Foe
- Biology - Why do We Fall Ill
- Biology - Natural Resources
- Biology - Our Environment
- Conservation of Plants and Animals
Biology Part 1 Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Biology. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - Arrange the following in the correct increasing order of pH that found in the human body:
A - Gastric Juice, blood, saliva
B - Blood, saliva, gastric juice
Answer : A
Explanation
N/A
Q 2 - Consider the following statements:
1. Skin protects from external injury and also protects from ultraviolet rays.
2. Skin helps in regulating the body temperature and expelling waste products.
Choose the correct answer from the codes given below:
Answer : C
Explanation
Skin contains several types of specialized nerve cells responsible for the sense of touch.
Q 3 - Which among the following is popular as the “Devil Fish?”
Answer : D
Explanation
N/A
Q 4 - Which among the following is the richest source of vitamin B1?
Answer : C
Explanation
N/A
Q 5 - Which among the following explains the best to improve the nutrient composition of a diet?
Answer : A
Explanation
N/A
Answer : D
Explanation
Phalanges are found in both i.e. fingers as well as toes.
Q 7 - Which among the following elements or ions is important in small quantities for the development of healthy teeth but causes mottling of the teeth if taken in higher quantities?
Answer : C
Explanation
Q 8 - Which among the following plants is used for the green manuring in India?
Answer : B
Explanation
Sunhemp is a natural source of nitrogen.
Q 9 - Which one of the following enzymes helps in digestion?
Answer : D
Explanation
The chemical formula of hydrochloric acid is HCl.
Q 10 - Consider the following statements:
1. Mitosis is a type of cell division in which daughter cell is genetically identical to the parent cell.
2. Mitosis is also known as vegetative (cell) division.
Choose the correct answer from the given codes:
Answer : C
Explanation
N/A
Q 11 - Consider the following statements:
1. Plant cells are immobile and have no flagella.
2. Plant cells move in response to stimulation as a result of the growth hormones.
Choose the correct answer from the given codes:
Answer : C
Explanation
N/A
Q 12 - Mosquito can be vector for following diseases except
Answer : C
Explanation
N/A
Q 13 - In reference to blood transfusion, which one of the following sets of blood groups is correct?
Answer : C
Explanation
N/A
Q 14 - Consider the following statements:
1. Blood without oxygen looks bluish, but after passing through the lungs it turns red.
2. When haemoglobin binds O2 blood turns red.
Choose the correct answer from the codes given below:
Answer : C
Explanation
N/A
Q 15 - Which among the following equipment diagnose eye ailments?
Answer : A
Explanation
N/A
Q 16 - …………………. Is not a natural disaster?
Answer : C
Explanation
Nuclear explosion is not a natural disaster.
Q 17 - Which among the following correctly defines the term paleontologist?
A - The scientist who studies fossils
B - The scientist who studies evolution of the earth
C - The scientist who studies evolution of the life
D - The scientist who studies the different characteristics of rocks
Answer : A
Explanation
N/A
Q 18 - Consider the following statements:
1. Eukaryotes contain nucleus inside its body.
2. Prokaryotes contain two nucleuses inside its body.
Choose the correct answer from the given codes:
Answer : A
Explanation
Prokaryotes do not contain any nucleus.
Q 19 - Which among the following enzymes converts protein to peptones?
Answer : C
Explanation
Trypsin is produced by pancreas (abdomen).
Q 20 - ………… is part of brain that controls the minute movement, maintains the balance and equilibrium of the body.
Answer : C
Explanation
Cerebellum is the part of the brain located at the back of the skull; it regulates and coordinates the muscular activity.
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