MCQ Questions for Class 11 Biology Quiz with Answers Chapter Wise PDF Download

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Class 11 Biology MCQs Multiple Choice Questions with Answers

Here are the chapterwise CBSE MCQ Quiz Test Questions for Class 11th Biology in pdf format that helps you access & download so that you can practice online/offline easily.

Anatomy Of Flowering Plants Class 11 Medical Biology MCQ Quiz

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Anatomy Of Flowering Plants Questions and Answers

Anatomy Of Flowering Plants Quiz Question Answer
Living cells of xylem are____________. Xylem parenchyma
Jute fibres are part of. Phloem
Centripetal xylem is the characteristic of
Roots
__________ cells have lignified walls. Sclerenchyma
Fibre tracheids have Simple pits
A major characteristic of the monocot root is the presence of  Vasculature without cambium.
Both Assertion and Reason are incorrect.
The vascular cambium in dicots is
Lateral
Pith is a central part of the ground tissue generally made up of
Parenchyma
Xylem fibre is a
Wood fibre

Animal Kingdom Class 11 Medical Biology MCQ Quiz

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Animal Kingdom Questions and Answers

Animal Kingdom Quiz Question Answer
A snake possesses No eye lids
Crocodile swims in water by means of Both A and B
The upper dorsal part of chelone shell is Carapace
Bony plates with horny epidermal scales occur in Crocodiles
Eutherians are characterized by
True placentation
Which one of the following reptiles have a four-chambered heart? Crocodiles
Which is an ectotherm/poikilothermic animal? Lizard
Two extra cranial nerves occurring in amniotes are_____________. Spinal accessory and hypoglossal
Poison glands of snakes are modified______________. Salivary glands
Which one contains the thecodonts? Crocodilia

Biological Classification Class 11 Medical Biology MCQ Quiz

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Biological Classification Questions and Answers

Biological Classification Quiz Question Answer
Sexual reproduction in lichen thallus belongs to : Fungal component only
Prion is made of Protein only
Which of the following is the largest one? Fungus
Both algae and fungi are NOT independently capable of initiating serial changes on bare rocks but lichens can do so because they. Adapt suitably to xeric conditions
The smallest disease causing agent is Virus
Which of the following is absent in virus? Energy liberation
The two micro-organisms which live in symbiotic association in lichens are
Alga and fungus
The antibiotics have no effect on viruses because  viruses show no metabolism of their own
Archaebacteria differ from eubacteria in
Cell membrane structure
One of the major components of cell wall of most fungi is
Chitin

Biomolecules Class 11 Medical Biology MCQ Quiz

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Biomolecules Questions and Answers

Biomolecules Quiz Question Answer
An enzyme promotes a chemical reaction by :
lowering the energy of activation
Glycoproteins contain
carbonhyrates
Activation energy is required for.
starting all biochemical reactions
The following is a storage protein:
glutein
The primary structure of a protein is due to :
peptide bonds
The fundamental building block of protein is
amino acid
Proteins consist of iodine
Amylase is an enzyme that catalyzes hydrolysis of:
starch to glucose
Which of the following is a water soluble vitamin?
$$B-$$complex
Which of the following is(are) example(s) of nucleotides?
All of the above

Body Fluids And Circulation Class 11 Medical Biology MCQ Quiz

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Body Fluids And Circulation Questions and Answers

Body Fluids And Circulation Quiz Question Answer
Mammalian erythrocytes have short life span due to absence of Nucleus
Which of these produces antibodies? Plasma cells/Lymphocytes
Radha, Bhoju, Raman, Raghu, labelled the given pictures in the following order which is correct one.
1106351_038a0f2c80dc4fbbbd3bdad35d5d3338.jpg
Neutrophils, lymphocytes, basophils, eosinophils
Nucleus of granular WBC is mainly Lobed
Which of the following is an oxygen carrier? RBC
Life span of blood platelets is 5 - 9 days.
Blood group agglutinogen is Glycoprotein
Thromboplastin required for blood clotting at the place of injury is released by Blood platelets
The function of vitamin K is in Blood clotting
Human red blood cells are _______________ in shape. Biconcave

Breathing And Exchange Of Gases Class 11 Medical Biology MCQ Quiz

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Breathing And Exchange Of Gases Questions and Answers

Breathing And Exchange Of Gases Quiz Question Answer
How much air is in lungs FRC? $$2100 - 2500$$ml
Inner surface of bronchi, bronchioles and fallopian tubes is lined by. Ciliated epithelium
Name the pulmonary disease in which alveolar surface  involved in gas exchange is drastically reduced due to damage in alveolar wall. Emphysema
Each $$100$$ml of human arterial blood carries 'P' ml of $$O_2$$ and 'Q' ml of $$CO_2$$ whereas each $$100$$ml of venous blood carries 'R' ml of $$O_2$$ and 'S' ml of $$CO_2$$. Choose the correct values of P, Q, R and S. P-$$19$$ to $$20$$ml, Q-$$48$$ml, R-$$14$$ to $$15$$ml, S-$$52$$ml
Oxyhaemoglobin acts as Acid
Expiration is the process of Giving air out
Reduction in respiratory surface of the lungs due to break down of partition in the alveoli is known as. Emphysema
Mammalian lungs have numerous alveoli for. Increasing surface area for gaseous diffusion
Choose the correct answer from the alternatives given.
In which of the following structures vocal cords are located?
Larynx
Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of: Residual Volume

Cell Cycle And Cell Division Class 11 Medical Biology MCQ Quiz

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Cell Cycle And Cell Division Questions and Answers

Cell Cycle And Cell Division Quiz Question Answer
Dyad is a pair of  sister chromatide
Which of the following protein forms spindle fibres? Tubulin
The condensation of chromosomes takes place during 
Prophase
Which cell division is found during cleavage? Closed mitosis
The best stage to count the number of chromosomes during mitosis is
 OR
Structure of chromosomes can be best seen at
Metaphase
The position of centromere during mitotic metaphase is Towards the equator
The number of chromosomes after phase I of meiotic division:
Become halved
Spindle fibres attach on to
Kinetochore of the chromosome
A stage in cell division is shown in the figure. Select the answer which gives correct identification of the stage with its characteristics.
A. Telophase
Nuclear envelope reforms, Golgi complex reforms
B. Late anaphaseChromosome moves away from poles, Golgi complex not present
C. CytokinesisNuclear envelope disappears and mitochondria distributed between two daughter cells
D. ProphaseEndoplasmic reticulum and nucleolus is not reformed

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A-1
Arrange the following events of meiosis in the correct sequence.
A. Crossing over
B. Synapsis
C. Terminalisation of chiasmata
D. Disappearance of nucleolus
B, A, C, D

Cell The Unit Of Life Class 11 Medical Biology MCQ Quiz

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Cell The Unit Of Life Questions and Answers

Cell The Unit Of Life Quiz Question Answer
The leucoplasts are Colourless
Which of the following is not related to endoplasmic reticulum? It can be the site of energy generation.
Give scientific reasons.
If lysosomes get ruptured inside the cells,
Cells will die
Out of the following parts of a cell listed below, name the part that is common to the plant cell, animal cell and a bacterial cell.
Cell membrane
Disulphide bonds which acts as atomic staples to reinforce the conformation of proteins are found in ______________.
54521_0e785671af4c47f6b0abfeed9c6b7594.png
Endoplasmic reticulum
Select the correct matching in the following pairs. Smooth ER - Synthesis of lipids
Which of the following pair of organelles does not contain DNA? Lysosomes and Vacuoles
A major site for the synthesis of lipids is SER.
Which one of the following organelle in the figure correctly matches with its function? Both C and D
The smallest living cells with cell wall are _______. Bacteria

Chemical Coordination And Integration Class 11 Medical Biology MCQ Quiz

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Chemical Coordination And Integration Questions and Answers

Chemical Coordination And Integration Quiz Question Answer
Hypoparathyroidism results in
Convulsions and tetany
The ions which plays major role in generating hormone action Calcium ions
The 24 hour (diurnal) rhythm of our body such as the sleep-wake cycle is regulated by the hormone Melatonin
Which of the following statements is not correct? The functional insulin has A and B chains linked together by hydrogen bonds
Which of the following does not favour the formation of large quantities of dilute urine? Renin
Which of the following glucose transporters is insulin-dependent? GLUT IV
Identify the hormone with its correct matching of source and function.
Melatonin - pineal gland, regulates the normal rhythm of sleepwake cycle
Which of the following hormones is produced under the condition of stress which stimulates glycogenolysis in the liver of human being? Adrenaline
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
Which endocrine gland is associated with kidneys?
Adrenal

Digestion And Absorption Class 11 Medical Biology MCQ Quiz

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Digestion And Absorption Questions and Answers

Digestion And Absorption Quiz Question Answer
Salivary secretion Cantains the enzyme salivary amylase
Digestion is completed in
Ileum
Lamina propria has nodules of lymphoid tissue which are aggregated to form Peyer's patches in. Submucosa of intestine
Duodenum produces hormones
Enterogastrone and cholecystokinin
Which are cutting teeth in humans?
Incisors
What percentage of amino acids is absorbed in the small intestine? 90-95%
Which of the following is true regarding the absorption mechanism of carbohydrates in the intestine? Glucose and galactose are transported actively
Calcium absorption is always enhanced by the action of the following vitamin Vitamin D
Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes. Goblet Cells
Which of the following guards the opening of hepatopancreatic duct into duodenum? Sphincter of Oddi

Excretory Products And Their Elimination Class 11 Medical Biology MCQ Quiz

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Excretory Products And Their Elimination Questions and Answers

Excretory Products And Their Elimination Quiz Question Answer
Uric acid is formed in human from
Purines
The Malpighian corpuscle lies in the

Cortex
In birds, excretion of nitrogenous wastes, mainly as uric acid, is helpful for conserving body water
The functional unit of the kidney where the urine is actually produced is Nephron
Flame cells are excretory organs of
Planaria
In which one of the following organisms its excretory organs are correctly stated? Earthworm - pharyngeal, integumentary and septal nephridia
Human urine is usually acidic because Hydrogen ions are actively secreted into the filtrate.
Which of the following statements is correct? The ascending limb of loop of Henle is impermeable to water.
Which part of the nephron is impermeable to water? Ascending limb of loop of Henle
Both Assertion and Reason are incorrect.

Locomotion And Movement Class 11 Medical Biology MCQ Quiz

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Locomotion And Movement Questions and Answers

Locomotion And Movement Quiz Question Answer
Chordae tendinae are the cord like structures that originate from papillary muscles of the inner border of the ventricles and are attached to free edges of the cuspid valves. What would happen if there is breakdown of chordae tendinae of bicuspid valves? There will be regurgitation of blood into right atrium during ventricular systole
Fill in the blanks with the correct combination of terms;
The joints in the body are the places where two ___a___ are joined together. The ends of bones are covered with soft ___b___. At the joints, the bones are held together strong, stretchy bands called ___ c__.
a-Bones; b-Cartilage; c-Ligaments
What do skeletons drop?
Bones
Bowling an imaginary cricket ball involves the movement of  Shoulder
Which among the following are joints? All of the above
The bending of arm to touch the shoulder with the fingers is due to the action of _____. Elbow
Ram kicks a football. This is due to the action of Knees
Legs for movement are absent in which of the following animals?  Snakes
How do snakes move? They use the whole body to slither
Joint between bones of human skull is Fibrous joint

Mineral Nutrition Class 11 Medical Biology MCQ Quiz

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Mineral Nutrition Questions and Answers

Mineral Nutrition Quiz Question Answer
Number of essential nutrients needed by plants is? $$16$$
Which of the following are macronutrients?
Both A and B
Coralloid roots help the plant in Fixation of nitrogen
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
Which enzyme complex is responsible for the reduction of molecular nitrogen to the level of $$NH_3$$ in root module of legume? Nitrogenase
Carbon is available to crop plants in the form of Carbon dioxide
The first stable product of fixation of atmospheric nitrogen in leguminous plants is Ammonia
Leguminous plants are able to fix atmospheric nitrogen through the process of symbiotic nitrogen fixation. Which one of the following statements is not correct during this process of nitrogen fixation? Nitrogenase is insensitive to oxygen.
The most abundant element present in the plants is
Carbon
The enzyme responsible for atmospheric nitrogen fixation is Nitrogenase

Morphology Of Flowering Plants Class 11 Medical Biology MCQ Quiz

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Morphology Of Flowering Plants Questions and Answers

Morphology Of Flowering Plants Quiz Question Answer
A fleshy root which is tapering at both ends is Fusiform
Climbing roots occur in
Vanilla
Diadelphous condition is common in
Papilionaceae.
A leaf is identified from
Presence of axillary bud
Primary function of the stem is___________. Bearing and holding of leaves
Male gametophyte with least number of cells is present in
Lilium
Which of the following is true?
Spike is a racemose inflorescence having sessile flowers.
Climbing roots are found in Piper
Which of the plant is not related to Leguminosae

Paddy
In Mirabilis the roots are Tuberous

Neural Control And Coordination Class 11 Medical Biology MCQ Quiz

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Neural Control And Coordination Questions and Answers

Neural Control And Coordination Quiz Question Answer
Myelin sheath is derived from Schwann cells
External ear is the characteristic of  Mammals
The simplest type of nervous system in the form of network of neurons is present in which of these lower organisms? sycon
Nodes of Ranvier in neurons of PNS:- Have axolemma
Which of the following is regarded as a unit of nervous tissue?
Neurons
Match the following columns and select the correct option.
Column - IColumn - II
(a)Organ of Corti(i)Connects middle
ear and pharynx
(b)Cochlea(ii)Coiled part of the
labyrinth
(c)Eustachian tube(iii)Attached to the oval
window
(d)Stapes(iv)Located on the
basilar membrane
$$(a)- (iv), \ (b)- (ii), \ (c)- (i), \ (d)- (iii)$$
How do parasympathetic neural signals affect the working of the heart?
Reduce both heart rate and cardiac output
Nissl bodies are mainly composed of  Free ribosomes and RER
Photosensitive compound in human eye is made up of
Opsin and Retinal
Myelin sheath is produced by Schwann Cells and Oligodendrocytes

Photosynthesis In Higher Plants Class 11 Medical Biology MCQ Quiz

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Photosynthesis In Higher Plants Questions and Answers

Photosynthesis In Higher Plants Quiz Question Answer
Photophosphorylation results in the formation of  ATP
Number of Calvin cycles required to generate a molecule of hexose is 6
The first stable product of photosynthesis in $$C_ 3$$ plants is 3- phosphoglyceric acid
Kranz anatomy is an exceptional feature of C4 plants
Photorespiration occurs in Green photosynthetic parts
Which of the following statements is correct? C$$_4$$ plants are more efficient than C$$_3$$ plants.
Which of the following is the site for the Calvin cycle of photosynthesis? Stroma
The site for Calvin cycle is the Stroma.                                                                 .
Which of the following is incorrect regarding $$C_{4}$$ pathway?
The first formed stable compound is a 3 carbon compound, i.e., oxaloacetic acid.
Kranz anatomy is one of the characteristics of the leaves of Sugarcane

Plant Growth And Development Class 11 Medical Biology MCQ Quiz

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Plant Growth And Development Questions and Answers

Plant Growth And Development Quiz Question Answer
Which one of the following is not true about kinetin? It inhibits the cell division.
Kinetin was first isolated and identified by
Miller
The word cytokinin which induces cell division was given by ............... Letham
The name zeatin was coined by Letham
Auxins are mostly produced in Meristematic region of stem
The primary precursor of IAA is  Tryptophan
Photoperiodism is associated with Gibberellin
One of the commonly used plant growth hormone in tea plantation is Indole 3-acetic acid
Gibberellins promote Seed germination
What causes a green plant exposed to the light on only one side, to bend toward the source of light as it grows? Auxin accumulates on the shaded side, stimulating greater cell elongation there.

Plant Kingdom Class 11 Medical Biology MCQ Quiz

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Plant Kingdom Questions and Answers

Plant Kingdom Quiz Question Answer
The common features between Chara and Marchantia are? Dioecious
Spore dissemination in some liverworts is aided by  Elaters
Which one of the following algae has the potential to be an important source of edible protein? Spirulina
Which of the following is coenocytic? Vaucheria
Pyrenoids are commonly found in Green algae
Megasporophyll of gymnosperms is homologous to ______ of angiosperms. carpel
Which one of the following is a parasitic algae?
Cephaleuros
Which one of the following is heterosporous?
Salvinia
Identify the pair, that exhibit circinate vernation.
Nephrolepis and Cycas
Which one of the following statements is wrong? Algin is obtained from red algae, and carrageenan from brown algae.

Respiration In Plants Class 11 Medical Biology MCQ Quiz

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Respiration In Plants Questions and Answers

Respiration In Plants Quiz Question Answer
An enzyme not used in Krebs cycle is
Aldolase.
Enzyme of TCA which is located in inner mitochondrial membrane in eukaryotes and cytosol in prokaryotes is ?
Succinate dehydrogenase
In which step of Krebs cycle, CO$$_2$$ is evolved _________________.
Oxalosuccinic acid -ketoglutaric acid
In glycolysis, 6-C compounds are split into 3-C compounds by enzyme
Aldolase
Which of the following is the product of phosphorylation?
Fructose 1,6-diphosphate
Glycolysis occurs in 
Generally in all the cells
Harden and Young's ester is formed during glycolysis from

Fructose1,6-bisphosphate
Krebs cycle is categorized as  
Aerobic respiration
Krebs cycle begins with 
Pyruvic acid
Acetyl CoA reacts with OAA to form
Citrate

Structural Organisation In Animals Class 11 Medical Biology MCQ Quiz

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Structural Organisation In Animals Questions and Answers

Structural Organisation In Animals Quiz Question Answer
Blood of Pheretima is Red
Total number of bones in human is 206
Muscles attached to the bones are Voluntary
Body cavity of earthworm is Schizocoel
The nature of chaetae of earthworm is Chitin and scleroprotein
What type of muscles are found in stomach?  Spindle shaped, Unbranched, Uninucleated and Involuntary
Smooth muscles are Involuntary, fusiform, non-striated
Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth. Pharynx $$\rightarrow$$ Oesophagus $$\rightarrow$$ Crop $$\rightarrow$$ Gizzard $$\rightarrow$$ Ileum $$\rightarrow$$ Colon $$\rightarrow$$ Rectum
Select the correct match.
 A Smooth muscle 1 Present in the wall of the intestine
 B Areolar tissue 2 Stores fats
 C Bone 3 Tip of nose
 D Cuboidal epithelium 4 Present in skin
A - 1
The terga, sterna and pleura of cockroach body are joined by  Arthrodial membrane

The Living World Class 11 Medical Biology MCQ Quiz

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The Living World Questions and Answers

The Living World Quiz Question Answer
The suffix-oidea is used for : superfamily
.......... are devices consisting of a series of contrasting or contradictory statements or propositions requiring the identifier to make comparisons and decisions. Taxonomic keys
Species are considered as? Both (A) and (B)
The taxon 'family' ends with suffix? 'ceae'
A group of interbreeding organisms is Species
__________ are useful in providing information for identification of names of species found in an area. Manuals
Animals are classified into hierarchical groups, in which one of the following, the target number of species is found? Genus
Manuals contain information for:
Identification of names of species found in an area.
For the identification of the name of species found in an area, one would use:
Monographs
An example of a family is a set of aunts living with their with their children? True

Transport In Plants Class 11 Medical Biology MCQ Quiz

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Transport In Plants Questions and Answers

Transport In Plants Quiz Question Answer
Lenticles are involved in Gaseous exchange.
Swelling in wooden block placed in water is due to Imbibition
Which of the following statement is correct?
Osmotic pressure of solution is greater than pure solvent.
Process of osmosis shall cease when
Solution become isotonic
Hydathodes are also called
Water stomata
What does a plant cell show if placed in sea water?
Plasmolysis
Guttation is the result of Root pressure
The process responsible for facilitating loss of water in liquid form the tip of grass blades at night and in early morning is Root pressure
Transpiration and root pressure cause water to rise in plants by Pulling and pushing it respectively
Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening, carbon dioxide diffuses into the plant during photosynthesis. Reason out of the above statements using one of the following options. Both processes can happen together because the diffusion coefficient of water and $$CO_2$$ is different.

Biology MCQ Questions for Class 11 - Practice Test with Solutions 

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