If you’re gearing up for your Biology for Engineers exam, you already know that practicing Previous Year Questions (PYQs) is one of the smartest ways to study. To make your revision easier, we’ve compiled all the objective questions from recent past papers, complete with options and the correct answers.
Bookmark this page, test your knowledge, and let’s ace this exam!
2022: B.Tech 7th Semester Special Exam
1. What does the first law of thermodynamics state?
- (i) Energy can neither be destroyed nor created
- (ii) Energy cannot be 100 percent efficiently transformed from one type to another
- (iii) All living organisms are composed of cells
- (iv) Input of heat energy increases the rate of movement of atoms and molecules
- Answer: (i) Energy can neither be destroyed nor created
2. Which one of the following is the longest phase of the cell cycle?
- (i) Prophase
- (ii) Telophase
- (iii) G1-phase
- (iv) G2-phaseAnswer: (iii) G1-phase
3. ‘Karyokinesis’ is the term used for:
- (i) division of cytoplasm
- (ii) division of nucleoplasm
- (iii) division of nucleus
- (iv) separation of daughter chromosomes
- Answer: (iii) division of nucleus
4. How many chromosomes are there in a human diploid cell?
- (i) 16
- (ii) 26
- (iii) 36
- (iv) 46
- Answer: (iv) 46
5. Eukaryotes are:
- (i) unicellular
- (ii) multicellular
- (iii) Both (i) and (ii)
- (iv) Neither (i) nor (ii)
- Answer: (iii) Both (i) and (ii)
6. Among the following, which is a testcross?
- (i) Tt x Tt
- (ii) TT x T
- (iii) TT x Tt
- (iv) Tt x tt
- Answer: (iv) Tt x tt
7. A person meets with an accident and great loss of blood has occurred. There is no time to analyze his blood group. It is safe to transfuse blood of:
- (i) AB+
- (ii) AB-
- (iii) O-
- (iv) O+Answer: (iii) O- (Note: O- is the universal donor)
8. The number of characters investigated by Mendel’s laws is:
- (i) four
- (ii) seven
- (iii) six
- (iv) oneAnswer: (ii) seven
9. The science dealing with the study of inheritance and variation is called:
- (i) genetics
- (ii) evolution
- (iii) morphology
- (iv) cytologyAnswer: (i) genetics
10. Which of the following characters can be acquired but not inherited?
- (i) Color of skin
- (ii) Size of body
- (iii) Color of eyes
- (iv) Texture of hairAnswer: (ii) Size of body
2022: End Semester Examination
1. Denaturation of protein involves breaking of several bonds except:
- (i) Electrostatic bond
- (ii) Disulfide bond
- (iii) Hydrogen bond
- (iv) Peptide bondAnswer: (iv) Peptide bond
2. Name the process of gaseous exchange in the body:
- (i) Lymphatic System
- (ii) Respiration
- (iii) Cardiovascular System
- (iv) ReproductionAnswer: (ii) Respiration
3. The ‘ABO’ system of blood measures the:
- (i) protein
- (ii) sugar
- (iii) antibody
- (iv) antigenAnswer: (iv) antigen
4. Which of the following is a protein hormone?
- (i) Oxytocin
- (ii) Insulin
- (iii) TSH
- (iv) Antidiuretic HormoneAnswer: (ii) Insulin
5. The term ‘biology’ was introduced by:
- (i) Lamarck and Treviranus
- (ii) Darwin
- (iii) John Ray
- (iv) AristotleAnswer: (i) Lamarck and Treviranus
6. An organism carrying two identical alleles is:
- (i) recessive
- (ii) heterozygous
- (iii) homozygous
- (iv) dominantAnswer: (iii) homozygous
7. Which enzyme joins DNA molecules together?
- (i) Polymerase
- (ii) Nucleases
- (iii) Ligases
- (iv) LinkersAnswer: (iii) Ligases
8. Exception to Mendel’s law of genetics is/are:
- (i) Linkage
- (ii) Pleiotropism
- (iii) Polyploidy
- (iv) All of the aboveAnswer: (iv) All of the above
9. The longest part of the cell cycle is:
- (i) prophase
- (ii) metaphase
- (iii) interphase
- (iv) telophaseAnswer: (iii) interphase
10. COVID-19 (Coronavirus) contains genetic material as:
- (i) Single stranded DNA
- (ii) Double stranded RNA
- (iii) Single stranded RNA
- (iv) Double stranded DNAAnswer: (iii) Single stranded RNA
2023: Special Examination
1. The name of coronavirus is:
- (i) Covid-19
- (ii) Crown
- (iii) Corona viridae
- (iv) HaloAnswer: (iii) Corona viridae
2. The metal present in chlorophyll is:
- (i) calcium
- (ii) aluminium
- (iii) zinc
- (iv) magnesiumAnswer: (iv) magnesium
3. Genetic engineering is:
- (i) Plastic surgery
- (ii) addition and removal of genes
- (iii) study of extranuclear genes
- (iv) All of the aboveAnswer: (ii) addition and removal of genes
4. The two strands of DNA are held together by the bonds of:
- (i) nitrogen
- (ii) hydrogen
- (iii) oxygen
- (iv) carbonAnswer: (ii) hydrogen
5. The longest part of the cell cycle is:
- (i) prophase
- (ii) metaphase
- (iii) interphase
- (iv) telophaseAnswer: (iii) interphase
6. Movement of particles in liquids and gases is observed as:
- (i) Bruneian motion
- (ii) Brownian motion
- (iii) Blackian motion
- (iv) Randomium motionAnswer: (ii) Brownian motion
7. Thermodynamics does not consider:
- (i) initial and final state
- (ii) time factor
- (iii) bulk of matter
- (iv) energy changeAnswer: (ii) time factor
8. The term ‘biology’ was introduced by:
- (i) Lamarck and Treviranus
- (ii) Darwin
- (iii) John Ray
- (iv) AristotleAnswer: (i) Lamarck and Treviranus
9. The ‘ABO’ system of blood measures the:
- (i) protein
- (ii) sugar
- (iii) antibody
- (iv) antigenAnswer: (iv) antigen
10. Study of birds is called:
- (i) haematology
- (ii) ornithology
- (iii) saurology
- (iv) rhinologyAnswer: (ii) ornithology
2023: B.Tech 7th Semester Examination
1. Organisms that prepare their own food are called:
- (i) Autotrophs
- (ii) Heterotrophs
- (iii) Consumers
- (iv) ProducersAnswer: (i) Autotrophs
2. Louis Pasteur discovered:
- (i) Microscope
- (ii) Sterilization
- (iii) Evolution
- (iv) PasteurizationAnswer: (iv) Pasteurization
3. The digestive system of the cell is known as:
- (i) Chloroplast
- (ii) Mitochondria
- (iii) Cell wall
- (iv) LysosomesAnswer: (iv) Lysosomes
4. Amoeba is an example of:
- (i) Multicellular
- (ii) Neutrophylls
- (iii) Unicellular
- (iv) ExtremophilesAnswer: (iii) Unicellular
5. The first form of life on earth was a:
- (i) Animal
- (ii) Plant
- (iii) Zooplankton
- (iv) MicroorganismAnswer: (iv) Microorganism
6. The simplest amino acid is:
- (i) glycine
- (ii) alanine
- (iii) asparagine
- (iv) tyrosineAnswer: (i) glycine
7. The branch of biology dealing with the study of cells is known as:
- (i) Histology
- (ii) Cytology
- (iii) Psychology
- (iv) PhysiologyAnswer: (ii) Cytology
8. In a plant, the xylem tissue conducts:
- (i) Water
- (ii) Food
- (iii) Water and food
- (iv) None of theseAnswer: (i) Water
9. The red colour of human blood is due to:
- (i) Myoglobin
- (ii) Haemoglobin
- (iii) Immunoglobulin
- (iv) HaptoglobinAnswer: (ii) Haemoglobin
10. The suicidal bags of the cell are:
- (i) Lysosomes
- (ii) Ribosomes
- (iii) Dictyosomes
- (iv) PhagosomesAnswer: (i) Lysosomes
2024: B.Tech 7th Semester Examination
1. Which vitamin helps the body absorb calcium?
- (i) Vitamin A
- (ii) Vitamin B
- (iii) Vitamin C
- (iv) Vitamin DAnswer: (iv) Vitamin D
2. ______ discovered Brownian motion.
- (i) Julius Robert Mayer
- (ii) Robert Brown
- (iii) Justin Bieber
- (iv) Jennifer Doudna and Richard RoblinAnswer: (ii) Robert Brown
3. ______ is the most common prokaryotic model organism in Science.
- (i) Arabidopsis thaliana
- (ii) C. elegans
- (iii) Escherichia coli
- (iv) Salmonella typhiAnswer: (iii) Escherichia coli
4. Which of the following is not present in an animal cell?
- (i) Ribosome
- (ii) Cytoplasm
- (iii) Cell walls
- (iv) MitochondriaAnswer: (iii) Cell walls
5. The term enzyme was given by:
- (i) Traube
- (ii) F.W Kühne
- (iii) Willstatter
- (iv) Louis PasteurAnswer: (ii) F.W Kühne
6. The term biology was coined by:
- (i) John Ray
- (ii) Aristotle
- (iii) Lamarck and Treviranus
- (iv) DarwinAnswer: (iii) Lamarck and Treviranus
7. Normal human blood pressure is:
- (i) 110/100
- (ii) 140/60
- (iii) 120/70
- (iv) 120/80Answer: (iv) 120/80
8. What is a non-reducing carbohydrate?
- (i) Sucrose
- (ii) Fructose
- (iii) Glucose
- (iv) MaltoseAnswer: (i) Sucrose
9. Inulin is characterized by:
- (i) Vitamin
- (ii) Polysaccharide
- (iii) Lipid
- (iv) ProteinAnswer: (ii) Polysaccharide
10. Which enzyme catalyzes the hydrolysis of glucose?
- (i) Trypsin
- (ii) Peptin
- (iii) Glucosidase
- (iv) AlcalaseAnswer: (iii) Glucosidase