Biology Quiz Multiple Choice Questions Online - Set 26

Biology is a fascinating field that has revolutionized our understanding of the world we live in. With new discoveries being made every day, it is essential for students and professionals alike to keep up with the latest trends and developments in the field. One way to do this is through regular practice and testing of your knowledge. In this article, we will provide you with a range of high-paid AdSense keywords related to biology and a set of challenging quiz questions to help you master the subject.

  1. Genetics and Heredity

Genetics is the study of genes and their role in determining inherited traits. Heredity refers to the passing of traits from parents to offspring. Test your knowledge of genetics and heredity with these quiz questions:

  • What is the process by which DNA is replicated?
  • What is a Punnett square used for?
  • What are the differences between dominant and recessive traits?
  • What is genetic drift, and how does it affect the genetic makeup of populations over time?
  1. Molecular Biology

Molecular biology is the study of the molecular basis of biological activity. It focuses on the structure and function of nucleic acids and proteins. Test your understanding of molecular biology with these quiz questions:

  • What is the central dogma of molecular biology?
  • What are the differences between transcription and translation?
  • What is the genetic code, and how is it read?
  • What is a codon, and what role does it play in protein synthesis?
  1. Microbiology

Microbiology is the study of microorganisms, including bacteria, viruses, fungi, and protozoa. Test your microbiology knowledge with these quiz questions:

  • What are the differences between prokaryotic and eukaryotic cells?
  • What is the difference between aerobic and anaerobic respiration?
  • What is the difference between bacteriostatic and bactericidal agents?
  • What is the role of viruses in infectious diseases?
  1. Ecology

Ecology is the study of how organisms interact with each other and with their environment. Test your understanding of ecology with these quiz questions:

  • What is the difference between a community and an ecosystem?
  • What is the difference between a food chain and a food web?
  • What are the differences between biotic and abiotic factors?
  • What is the impact of human activity on ecosystems?


Biology Quiz Multiple Choice Questions Online - Set 26


1) The gland that is present close to Trachea
A) Pancreas
B) Liver
C) Adrrenal
D) Thyroid
Answer: D) Thyroid

2) The sciatic nerve is a combination of which two nerves?
A) common fibular and tibial
B) pudendal and posterior femoral cutaneous
C) posterior femoral cutaneous and tibial
D) pudendal and common fibular
Answer: A) common fibular and tibial

3) Conversion of Glycogen to Glucose is stimulated by
A) Insulin
B) Cortisol
C) Glucagon
D) Progesterone
Answer: C) Glucagon

4) Branch of science which deal with the study of causative agent of disease is __________
A) Ecology
B) Etiology
C) Eugenics
D) Euthenics
Answer: B) Etiology

5) What are the three main parts of a Eukaryotic cell?
6) Spongy, porous bone tissue is also called
A) Compact bone
B) Bone fissure
C) Yellow bone marrow
D) Cancellous bone
Answer: D) Cancellous bone

7) A pulse can be detected most easily in
A) a vein
B) a lacteal
C) an artery
D) a capillary
Answer: C) an artery

8) Which letter indicates systolic pressure?
A) i
B) b
C) c
D) a
Answer: D) a

9) Which among the following is a Vitamin?
A) Citric acid
B) Follic acid
C) Glutonic acid
D) none
Answer: B) Follic acid

10) All enzymes are proteins.
A) TRUE
B) FALSE
Answer: A) TRUE

11) Which observation proves that a cell is a eukaryote?
A) It contains DNA
B) It contains ribosomes
C) It has a cell membrane
D) It has DNA inside a nucleus
Answer: D) It has DNA inside a nucleus

12) What carries Blood away from the Heart?
A) Arteries
B) Veins
C) Both A & B
D) None
Answer: A) Arteries

13) In exo-biology we study about ________
A) External structure of living beings
B) Life present on the earth
C) Life present in the other layer of earth atmosphere
D) Life found in space and on other satellite
Answer: D) Life found in space and on other satellite

14) Which one of the following is true of tRNAs?
A) tRNAs are double-stranded.
B) There are four types of tRNA.
C) Each tRNA binds a particular amino acid.
D) All of the above
Answer: C) Each tRNA binds a particular amino acid.

15) Every ecosystem must have
A) Autotrophs
B) Heterotrophs
C) Both A & B
D) photosynthesizers
Answer: A) Autotrophs

16) What type of macromolecule is an enzyme?
A) Proteins
B) Saturated fats
C) Phospholipids
D) Lipids
Answer: A) Proteins

17) The First step of Bacterial Replication is
A) Pinching of the plasma membrane
B) Separation of daughter cells
C) Attachment of the DNA to the plasma membrane
D) DNA Replication
Answer: D) DNA Replication

18) Organisms that depend only on raw plant products are said to be 
A) herbivorous
B) vegetarian
C) carnivorous
D) omnivorous
Answer: A) herbivorous

19) What holds the sides of the DNA ladder together?
A) Polar covalent bonds
B) Ionic bonds
C) Metallic bonds
D) Covalent bonds
Answer: D) Covalent bonds

20) DNA can be found in what Organelles?
A) Chloroplasts and Mitichondria
B) Nucleus and Ribosomes
C) Ribosomes and Mitochondria
D) Endoplasmic Reticulum and Nucleus
Answer: A) Chloroplasts and Mitichondria

21) Enzymes are produced by
A) endocrine glands
B) exocrine glands
C) liver
D) spleen
Answer: B) exocrine glands

22) Phycology is the branch of botany in which we study about__________
A) Algae
B) fungi
C) Ecology
D) Virus
Answer: A) Algae

23) Most abundant tissue in the body
A) Connective
B) Nervous
C) Muscular
D) Epithelial
Answer: A) Connective

24) Where does cellular respiration take place in the cell?
A) cytoplasm
B) mitochodria
C) Ribosomes
D) Chromosomes
Answer: B) mitochodria

25) The rate of heartbeat is accelerated by the hormone 
A) adrenaline
B) acetylcholine
C) thyroxine
D) pituitrin
Answer: A) adrenaline

26) The book Historia plantrum is written by
A) Aristotle
B) Theophrastus
C) Hipporates
D) Darwin
Answer: B) Theophrastus

27) Antipsychotic drugs have proved helpful in the treatment of
A) Epilepsy
B) Schizophrenia
C) Psoriasis
D) Eczema
Answer: B) Schizophrenia

28) What happens during the S-phase of the cell cycle?
A) cell division
B) cell growth
C) DNA replication
D) protein and enzyme synthesis
Answer: C) DNA replication

29) A gland below the bladder and surrounding the urethra is
A) prostate
B) seminal vesicle
C) bartholin
D) vas deferens
Answer: A) prostate

30) Which forms the largest portion of the coxal bone?
A) Ilium
B) Ischium
C) Pubis
D) None of the above
Answer: A) Ilium

31) Which of the following would cause gene flow?
A) Individuals moving into population
B) Genetic drift
C) Mutation
D) Artificial selection
Answer: A) Individuals moving into population

32) Lamarck's theory of inheritance of acquired characters was challenged by 
A) August Weismann
B) Hugo de Vries
C) Herbert Spencer
D) Carl Linnaeus
Answer: C) Herbert Spencer

33) The outer membrane that covers the brain is
A) Myelin sheath
B) Dura mater
C) Arachnoid membrane
D) Pia mater
Answer: B) Dura mater

34) The insects do not have blood pigments because 
A) there is no blood
B) blood does not have a respirratory function
C) tissues have pigments
D) pigments are elsewhere
Answer: B) blood does not have a respirratory function

35) Which best describes a gene?
A) a segment of chromosomal DNA
B) tightly coiled strands of DNA
C) different allele forms of a trait
D) None of the above
Answer: A) a segment of chromosomal DNA

36) Improving muscular strength and endurance slows bone density loss.
A) TRUE
B) FALSE
Answer: A) TRUE

37) Movement of cell against concentration gradient is called
A) active transport
B) diffusion
C) osmosis
D) passive transport
Answer: A) active transport

38) The brain is covered by
A) meninges
B) skin
C) bone
D) all the above
Answer: D) all the above

39) The best eradication method for a major infestation is
A) Chemical
B) Bacteria
C) Fusion
D) None of the above
Answer: A) Chemical

40) The right ventricle transports oxygenated blood to the lungs.
A) TRUE
B) FALSE
Answer: B) FALSE

41) An olfactory stimulus travels from receptor to
A) amygdala
B) pons
C) olfactory bulb
D) thalamus
Answer: C) olfactory bulb

42) Which of the following is true of annelids?
A) They have an open circulatory system
B) They have a nerve net
C) They perform gas exchange across their skin
D) They have pseudocoeloms
Answer: C) They perform gas exchange across their skin

43) Which formula represents an amino acid?
A) R-CH3(NH2)-COOH
B) R-CH(NH2)-COOH
C) R-CH2(NH2)-COOH
D) R-CH3(NH2)-COH
Answer: B) R-CH(NH2)-COOH

44) Non-Gonococcal Urethritis is most often caused by
A) chlamydia
B) gonorrhea
C) progesterone
D) herpes genitalis
Answer: A) chlamydia

45) Do plant cells have Mitochondria?
A) No
B) Yes
C) May be
D) Can't be determined
Answer: B) Yes

46) Protists and bacteria are grouped into different domains because
A) protists have a membrane-bounded nucleus, which bacterial cells lack.
B) protists eat bacteria
C) bacteria decompose protists
D) protists are photosynthetic
Answer: A) protists have a membrane-bounded nucleus, which bacterial cells lack.

47) What three statements make up the cell theory?
A) All living things are made up of cells.
B) New cells come frome exisiting cells.
C) Cells are the basic unit of structure/function in living things.
D) All of the above
Answer: D) All of the above

48) Which of the following is a feature of ghrelin?
A) It stimulates appetite and energy storage
B) It is released in high amounts from adipocytes during periods of excess energy intake
C) The blood level in the fasting state correlates directly with body weight
D) It is a metabolic antagonist of leptin
Answer: A) It stimulates appetite and energy storage

49) Which of the following statements is most accurate regarding infection with parvovirus B19?
A) Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors
B) Parvovirus B19 can cause hydrops fetalis via transplacental infection of a fetus in a seropositive mother
C) Parvovirus B19 can be diagnosed by detection of viral RNA using PCR or hybridization assays
D) Parvovirus B19 replicates in the host cell nucleus utilizing a virally encoded DNA polymerase to create a double- stranded DNA intermediate
Answer: A) Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors

50) Plants grow in size because of 
A) addition of cells
B) increase in size of cells
C) enlargement of cells
D) elongation of cells
Answer: A) addition of cells

51) Which statement regarding the mammalian heart is correct?
A) Blood is pumped from the heart via the atria.
B) Oxygen-loaded blood moves only through the right side of the heart.
C) When the right atrium contracts, it forces blood into the left atrium.
D) In the adult heart, blood in the right chambers of the heart cannot enter the left chambers without passing through the lungs.
Answer: D) In the adult heart, blood in the right chambers of the heart cannot enter the left chambers without passing through the lungs.

52) Blood is
A) alkaline
B) neutral
C) like a buffer
D) acidic
Answer: A) alkaline

53) Amarbel is an example of
A) parasite
B) host
C) autotroph
D) saprotroph
Answer: A) parasite

54) The lining of the marrow cavity is
A) Endosteum
B) Sarcolemma
C) Episteum
D) Periosteum
Answer: A) Endosteum

55) Which of the following is a healthy fat?
A) polyunsaturated fat
B) enriched fat
C) trans fat
D) saturated fat
Answer: A) polyunsaturated fat

56) AIDS is caused by the organisms which are
A) bacteria
B) fungi
C) viruses (HTLV III)
D) ProtoZoa
Answer: C) viruses (HTLV III)

57) Where does translation take place in the cell?
A) Nucleus
B) Mitochondria
C) Ribosomes
D) Cytoplasm
Answer: D) Cytoplasm

58) Which base is found only in RNA?
A) Thyamine
B) Adenine
C) Uracil
D) Cytosine
Answer: C) Uracil

59) Which of these is a human disease caused by bacteria?
A) TB
B) Ascariasis
C) Chickenpox
D) Common cold
Answer: A) TB

60) Which process occurs inside the chloroplasts?
A) Photosynthesis
B) Glycolysis
C) Oxidation
D) None of the above
Answer: A) Photosynthesis

General Knowledge: Also Read:
Biology Quiz Multiple Choice Questions Online - Set 26 Biology Quiz Multiple Choice Questions Online - Set 26 Reviewed by SSC NOTES on April 28, 2023 Rating: 5
Powered by Blogger.