CBSE Multiple Choice Type Questions for 11th Class Biology PDF formatted study resources are available for free download. These Grade 11 Biology CBSE MCQ Mock Test helps you learn & practice the concepts in a fun learning way.
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 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 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 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 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 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.![]() |
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 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 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-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 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 ______________.![]() |
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 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 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 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 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 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 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 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.
|
$$(a)- (iv), \ (b)- (ii), \ (c)- (i), \ (d)- (iii)$$ | ||||||||||||||||||||
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 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 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 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 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 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 - 1 | ||||||||||||||||
The terga, sterna and pleura of cockroach body are joined by | Arthrodial membrane |
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 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. |
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