Biology MCQs

Option A: pulmonary trunk

Option B: brain

Option C: aorta

Option D: body

Correct Answer: pulmonary trunk ✔

Option A: 3500000

Option B: 35000

Option C: 2500000

Option D: 25000000

Correct Answer: 2500000 ✔

Option A: pleura

Option B: pericardium

Option C: peritoneum

Option D: epithelium

Correct Answer: pericardium ✔

Option A: Static

Option B: Dynamic

Option C: May be static or dynamic

Option D: None of these

Correct Answer: Dynamic ✔

Option A: Molecule

Option B: Subatomic particles

Option C: Atoms

Option D: Organelles

Correct Answer: Organelles ✔

Option A: birds

Option B: human

Option C: fish

Option D: frog

Correct Answer: frog ✔

Option A: bony fish

Option B: sea fish

Option C: cartilaginous fish

Option D: none of these

Correct Answer: bony fish ✔

Option A: simple

Option B: advance

Option C: complex

Option D: highly complex

Correct Answer: complex ✔

Option A: 16 Bio-elements

Option B: 12 Bio-elements

Option C: 10 Bio-elements

Option D: 6 Bio-elements

Correct Answer: 6 Bio-elements ✔

Option A: carbohydrates

Option B: proteins

Option C: lipids

Option D: carbonates

Correct Answer: proteins ✔

Option A: lipase

Option B: trypsin

Option C: ptyalin

Option D: invertase

Correct Answer: ptyalin ✔

Option A: Cowpox

Option B: Mumps

Option C: Tetanus

Option D: Small pox

Correct Answer: Tetanus ✔

Option A: Chemosynthesis

Option B: Photosynthesis

Option C: Phosphorylation

Option D: Chemiosmosis

Correct Answer: Chemiosmosis ✔

Option A: Integrated disease management

Option B: Hydroponic culture technique

Option C: Pasteurization

Option D: Bioremediation

Correct Answer: Bioremediation ✔

Option A: ferns

Option B: bryophytes

Option C: gymnosperms

Option D: angiosperms

Correct Answer: bryophytes ✔

Option A: The nucleus of a fertilized egg is replaced by the nucleus from the cell of a fully developed individual

Option B: Division of a single egg into one or more separate embryos.

Option C: The individual is the mirror image of the parent organism

Option D: It involve methods of sexual reproduction

Correct Answer: It involve methods of sexual reproduction ✔

Option A: Antibiotic therapy

Option B: Radiotherapy

Option C: Gene therapy

Option D: None of these

Correct Answer: Radiotherapy ✔

Option A: cuscuta

Option B: rose

Option C: ferns

Option D: mosses

Correct Answer: cuscuta ✔

Option A: Cell wall

Option B: Cytoplasm

Option C: Centriole

Option D: Nucleus

Correct Answer: Centriole ✔

Option A: They are used against microorganisms

Option B: They are always effective against bacteria

Option C: They are used in diseases like tuberculosis and pneumonia

Option D: They are derived from bacteria only

Correct Answer: They are derived from bacteria only ✔

Option A: Photosynthetic

Option B: Chemosynthetic

Option C: Completely parasitic

Option D: Absorptive heterotrophs

Correct Answer: Absorptive heterotrophs ✔

Option A: Measles

Option B: Polio

Option C: Small pox

Option D: Hepatitis

Correct Answer: Small pox ✔

Option A: fucoxanthin

Option B: phycocyanin

Option C: phycoerythrin

Option D: bilirubin

Correct Answer: phycoerythrin ✔

Option A: Louis Pasture

Option B: Edward Jenner

Option C: Jaber Ibn Hayan

Option D: Aristotle

Correct Answer: Edward Jenner ✔

Option A: helper-T

Option B: B

Option C: both T and B

Option D: none of these

Correct Answer: helper-T ✔

Option A: Measles

Option B: Cancer

Option C: Diabetes

Option D: Heart attack

Correct Answer: Measles ✔

Option A: virion

Option B: mycoplasma

Option C: viroids

Option D: prions

Correct Answer: viroids ✔

Option A: Aerosol

Option B: Parentral (via blood)

Option C: Skin penetration

Option D: Unknown

Correct Answer: Parentral (via blood) ✔

Option A: nucleus

Option B: ribosome

Option C: golgi complex

Option D: centriole

Correct Answer: ribosome ✔

Option A: It is used to preserve yogurt and milk

Option B: It was developed by Louis Pasteur.

Option C: It involves heating the substance at high temperature for just few sec.

Option D: It can be used to preserve vegetables and meat.

Correct Answer: It can be used to preserve vegetables and meat. ✔

Option A: 1

Option B: 2

Option C: 4

Option D: 6

Correct Answer: 1 ✔

Option A: Tissue culture techniques

Option B: Cloning

Option C: Pasterisation

Option D: Hydroponic culture technique

Correct Answer: Hydroponic culture technique ✔

Option A: nucleus

Option B: chloroplast

Option C: mitochondria

Option D: none of these

Correct Answer: nucleus ✔

Option A: lipid

Option B: protein

Option C: inorganic ion

Option D: vitamin

Correct Answer: vitamin ✔

Option A: Pasteurization

Option B: Hydroponic culture technique

Option C: Genetic engineering

Option D: Biological control techniques

Correct Answer: Genetic engineering ✔

Option A: diastase

Option B: invertase

Option C: maltase

Option D: amylase

Correct Answer: diastase ✔

Option A: Scientific hypothesis

Option B: Theory

Option C: Scientific law

Option D: Productive theory

Correct Answer: Scientific law ✔

Option A: It is predictive

Option B: It has explanatory power

Option C: It discourages suggestion of different hypotheses

Option D: None of these

Correct Answer: It discourages suggestion of different hypotheses ✔

Option A: carbon, oxygen, nitrogen, sulfur

Option B: carbon, oxygen, hydrogen, nitrogen

Option C: carbon, oxygen, sulfur, phosphorus

Option D: carbon, sulfur, hydrogen, magnesium

Correct Answer: carbon, oxygen, hydrogen, nitrogen ✔

Option A: Scientific law

Option B: Theory

Option C: Data

Option D: Deduction

Correct Answer: Theory ✔

Option A: Water

Option B: Glucose

Option C: Oxygen

Option D: Sodium chloride

Correct Answer: Glucose ✔

Option A: Experimental inquiry

Option B: Esthetic preference

Option C: Philosophical ideas

Option D: Imaginations

Correct Answer: Experimental inquiry ✔

Option A: Hydrolysis

Option B: Pinocytosis

Option C: Dehydration synthesis

Option D: Active transport

Correct Answer: Dehydration synthesis ✔

Option A: Biome

Option B: Phyletic lineage

Option C: Community

Option D: Population

Correct Answer: Phyletic lineage ✔

Option A: Diffusion

Option B: Passive transport

Option C: Osmosis

Option D: Active transport

Correct Answer: Active transport ✔

Option A: Older sediment layers have equal amount of these radioactive isotopes as that of the young ones

Option B: Older sediment layers have less amount of these radioactive isotopes as that of the young ones.

Option C: Older sediment layers have greater amount of these radioactive isotopes as that of the young ones.

Option D: Older sediment layers did not have these radioactive isotopes

Correct Answer: Older sediment layers have less amount of these radioactive isotopes as that of the young ones. ✔

Option A: Concentration of water molecules inside and outside the cell

Option B: Concentration of enzymes on either side of the cell membrane

Option C: Rate of molecular motion on either side of the cell membrane

Option D: None of these

Correct Answer: Concentration of water molecules inside and outside the cell ✔

Option A: Environmental biologist

Option B: Paleontologist

Option C: Marine biologist

Option D: Social biologist

Correct Answer: Paleontologist ✔

Option A: DNA ad protein

Option B: Protein and Lipids

Option C: Protein and Chitin

Option D: Protein and RNA

Correct Answer: Protein and Lipids ✔

Option A: Population

Option B: Community

Option C: Biome

Option D: Habitat

Correct Answer: Biome ✔

Option A: bacteria

Option B: fungi

Option C: virus

Option D: none of these

Correct Answer: bacteria ✔

Option A: Population

Option B: Community

Option C: Biome

Option D: Habitat

Correct Answer: Community ✔

Option A: Vasodilation

Option B: Vasoconstriction

Option C: Panting

Option D: All of these

Correct Answer: Panting ✔

Option A: Community

Option B: Population

Option C: Ecosystem

Option D: Biome

Correct Answer: Population ✔

Option A: Skin

Option B: Liver

Option C: Lungs

Option D: GIT

Correct Answer: Skin ✔

Option A: Nervous system

Option B: Endocrine system

Option C: Respiratory system

Option D: Both A and B

Correct Answer: Both A and B ✔

Option A: Urine

Option B: Blood

Option C: Glomerular filterate

Option D: Coelomic fluid

Correct Answer: Blood ✔

Option A: An organ

Option B: An organism

Option C: A Tissue

Option D: A Cell

Correct Answer: A Tissue ✔

Option A: Polysaccharide

Option B: Protein

Option C: Hemoglobin

Option D: ATP

Correct Answer: ATP ✔

Option A: An organ

Option B: A molecule

Option C: Tissue

Option D: Both a and c

Correct Answer: A molecule ✔

Option A: 65%

Option B: 18%

Option C: 10%

Option D: 3%

Correct Answer: 65% ✔

Option A: Calcium

Option B: Iron

Option C: Water

Option D: Carbohydrates

Correct Answer: Carbohydrates ✔

Option A: 6

Option B: 16

Option C: 26

Option D: 15

Correct Answer: 6 ✔

Option A: Calcium

Option B: Iron

Option C: Water

Option D: Carbohydrates

Correct Answer: Iron ✔

Option A: Environmental biology

Option B: Social biology

Option C: Human biology

Option D: Both b and c

Correct Answer: Social biology ✔

Option A: Arteries

Option B: Capillaries

Option C: Veins

Option D: none of these

Correct Answer: Veins ✔

Option A: Biotechnology

Option B: Social biological techniques

Option C: Parasitology

Option D: Both a and c

Correct Answer: Biotechnology ✔

Option A: White Blood cells

Option B: Red Blood Cells

Option C: Platelets

Option D: Plasma

Correct Answer: White Blood cells ✔

Option A: Molecular biologists

Option B: Microbiologists

Option C: Freshwater biologists

Option D: Social biologist

Correct Answer: Molecular biologists ✔

Option A: 60%

Option B: 65%

Option C: 70%

Option D: 75%

Correct Answer: 70% ✔

Option A: Environmental Biology

Option B: Historical biology

Option C: Palaeontology

Option D: Social biology

Correct Answer: Palaeontology ✔

Option A: 35 oC

Option B: 36 oC

Option C: 37 oC

Option D: 38 oC

Correct Answer: 37 oC ✔

Option A: Vitamin A

Option B: Vitamin C

Option C: Vitamin D

Option D: B complex

Correct Answer: Vitamin A ✔

Option A: They live in the same ecosystem.

Option B: They are highly organized and complex made of one or more cells and contain genetic material

Option C: They are acted upon by the same environment

Option D: Both a and b

Correct Answer: They are highly organized and complex made of one or more cells and contain genetic material ✔

Option A: smaller number of Red Blood Cells

Option B: larger number of Red Blood Cells

Option C: smaller number of White Blood Cells

Option D: larger number of White Blood Cells

Correct Answer: larger number of Red Blood Cells ✔

Option A: Growth of pathogens

Option B: Soil Infertility

Option C: Slowing of crops growth

Option D: Eradication of disease

Correct Answer: Eradication of disease ✔

Option A: 1993

Option B: 1994

Option C: 1995

Option D: 1996

Correct Answer: 1996 ✔

Option A: Accumulated Data

Option B: Observation

Option C: Hypothesis

Option D: Conclusion

Correct Answer: Hypothesis ✔

Option A: Hydrodynamics

Option B: Hydroponics

Option C: Hydrotonics

Option D: None of them

Correct Answer: Hydroponics ✔

Option A: Fleming in 1945

Option B: Florey & Chain in 1975

Option C: Flore & Chain in 1795

Option D: Edward Jenner in 1795

Correct Answer: Edward Jenner in 1795 ✔

Option A: Penicillin

Option B: Cephalosporin

Option C: Amino glycosides

Option D: Erythromycin

Correct Answer: Penicillin ✔

Option A: 1896

Option B: 1897

Option C: 1898

Option D: 1899

Correct Answer: 1898 ✔

Option A: Culex Mosquito

Option B: Culiesta Mosquito

Option C: Anopheles Mosquito

Option D: Culex & Anopheles Mosquito

Correct Answer: Anopheles Mosquito ✔

Option A: Hypothesis –>Accumulated data –> observation & experimentation –> conclusion

Option B: New data —> Conclusion —> Accumulated data —> Observation & experimentation

Option C: Accumulated data – New data – Observation & experimentation – Hypothesis –> Conclusion

Option D: Accumulated data —> Hypothesis –> Observation & experimentation —> New data —> Conclusion

Correct Answer: D. Accumulated data —> Hypothesis –> Observation & experimentation —> New data —> Conclusion ✔

Option A: Nucleus

Option B: Mitochondria

Option C: Cell

Option D: DNA

Correct Answer: Cell ✔

Option A: Observation

Option B: Research work

Option C: Hypothesis

Option D: Inductive Reasoning

Correct Answer: Hypothesis ✔

Option A: Species

Option B: Community

Option C: Ecosystem

Option D: Population

Correct Answer: Population ✔

Option A: Biosphere

Option B: Ecosystem

Option C: Population

Option D: Species

Correct Answer: Species ✔

Option A: Organ

Option B: Tissues

Option C: Organelle

Option D: Organ System

Correct Answer: Tissues ✔

Option A: Chloroplast

Option B: A Nerve Cell

Option C: DNA

Option D: Hydrogen

Correct Answer: DNA ✔

Option A: Biosphere

Option B: Community

Option C: Population System

Option D: Ecosystem

Correct Answer: Community ✔

Option A: Cells

Option B: Organs

Option C: Organ System

Option D: Organelles

Correct Answer: Organs ✔

Option A: Nucleus

Option B: Genes

Option C: Chromosomes

Option D: Nucleolus

Correct Answer: Genes ✔

Option A: Unicellular structures

Option B: Multi-cellular structures

Option C: Sub-cellular structures

Option D: Non-cellular structures

Correct Answer: Sub-cellular structures ✔

Option A: Cells

Option B: Tissues

Option C: Organs

Option D: Organ System

Correct Answer: Cells ✔

Option A: Organelle

Option B: Tissues

Option C: Organic compound

Option D: Inorganic compounds

Correct Answer: Tissues ✔

Option A: Carbon

Option B: Nitrogen

Option C: Hydrogen

Option D: Ammonia

Correct Answer: Carbon ✔

Option A: Anatomy

Option B: Physiology

Option C: Parasitology

Option D: Social Biology

Correct Answer: Parasitology ✔

Option A: Human Biology

Option B: Environmental Biology

Option C: Genetics

Option D: Bio-technology

Correct Answer: Bio-technology ✔

Option A: Social Biology

Option B: Marine Biology

Option C: Environmental Biology

Option D: Fresh Water Biology

Correct Answer: Marine Biology ✔