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MCQOPTIONS
This section includes 1777 Mcqs, each offering curated multiple-choice questions to sharpen your 9th Class knowledge and support exam preparation. Choose a topic below to get started.
| 1301. |
Thallophyta includes: |
| A. | Spirogyra |
| B. | Ferns |
| C. | Mosses |
| D. | All the above |
| E. | None of these |
| Answer» B. Ferns | |
| 1302. |
In most of the Arthropods and especially in insects, their exoskeleton is shed off and a new exoskeleton is formed. What is the name of this process? |
| A. | Emasculation |
| B. | Metamorphosis |
| C. | Camouflage |
| D. | Moulting |
| Answer» E. | |
| 1303. |
Which of the following is a multicellular organism? |
| A. | Amoeba |
| B. | Paramecium |
| C. | Yeast |
| D. | All the above |
| E. | None of these |
| Answer» D. All the above | |
| 1304. |
Which one of the following is incorrectly paired? |
| A. | Ascaris - Arthropoda |
| B. | Sponges - Porifera |
| C. | Tapeworm - Platyhelminthes |
| D. | Leech - Annelida |
| E. | None of these |
| Answer» B. Sponges - Porifera | |
| 1305. |
Which of the following organisms has tube feet as its locomotory organs? |
| A. | Starfish |
| B. | Jellyfish |
| C. | Cuttlefish |
| D. | Silver fish |
| Answer» B. Jellyfish | |
| 1306. |
Read the given passage.Pteridophytes are the first plants with X tissue but they lack Y and Z in this tissue system. The dominant plant body is P which bears sporangia that can be either Q or R.Select the option that correctly identifies any three of these variables. |
| A. | P-Gametophyte, Q-Female, R-Male |
| B. | X-Vascular, Y-Tracheids, Z-Vessels |
| C. | P-Sporophyte, Q-Homosporous, R- Heterosporous |
| D. | X-Meristematic, Y-Xylem, Z-Phloem |
| Answer» D. X-Meristematic, Y-Xylem, Z-Phloem | |
| 1307. |
To which of the following phylas does the animal given below belongs to? |
| A. | Porifera |
| B. | Aschelminthes |
| C. | Annelida |
| D. | Arthropoda |
| Answer» E. | |
| 1308. |
Which one of the following is a vascular cryptogam? |
| A. | Liverwor |
| B. | Fern |
| C. | Ulothrix |
| D. | Ulva |
| E. | None of these |
| Answer» C. Ulothrix | |
| 1309. |
Direction: Refer to the given dichotomous key and answer the following questions.(I) (a) Cellular level of body organisation is present. - Go to IV(b) Tissue/Organ level of body organisation is present. - Go to II(II) (a) Radial symmetry is present. - Go to III (a)(b) Bilateral symmetry is present. - Go to III (b)(III) (a) It is acoelomate. - Go to V(b) It is true coelomate. - Go to VI(IV) (a) It is found in deep sea waters and is a costly wedding gift in Japan. – [P](b) It is commonly known as bath sponge. [Q](V) (a) It is commonly known as the sea anemone. – [R](b) It is commonly known as sea fur. – [S](VI) (a) It is segmented and sanguivorous. – [T](b) It bears jointed feet and chitinous exoskeleton. – [U]Which of the following statements is correct regarding the given dichotomous key? |
| A. | The body of organism P is perforated by numerous pores called ostia whereas R possesses special stinging cells called cnidoblasts. |
| B. | The excretory system of Q consists of characteristic flame cells or protonephridia. |
| C. | The body wall of S consists of special stinging cells called choanocytes whereas body of T is differentiated into head, visceral mass and foot. |
| D. | Body of U bears paired locomotory appendages called parapodia. |
| Answer» B. The excretory system of Q consists of characteristic flame cells or protonephridia. | |
| 1310. |
In most of the Aschelminthes, the respiratory and circulatory systems are absent. Where do they get their oxygen needed for living from? |
| A. | They can absorb oxygen directly from air. |
| B. | They have special oxygen cylinder attached to them. |
| C. | They have an air bubble feeds them. |
| D. | They obtain oxygen from their host through their body wall. |
| Answer» E. | |
| 1311. |
Plants which do not have differentiated plant body are:? |
| A. | Bryophyta |
| B. | Pteridophyta |
| C. | Thallophyta |
| D. | Gymnosperms |
| E. | None of these |
| Answer» D. Gymnosperms | |
| 1312. |
Direction: Refer to the given dichotomous key and answer the following questions.(I) (a) Cellular level of body organisation is present. - Go to IV(b) Tissue/Organ level of body organisation is present. - Go to II(II) (a) Radial symmetry is present. - Go to III (a)(b) Bilateral symmetry is present. - Go to III (b)(III) (a) It is acoelomate. - Go to V(b) It is true coelomate. - Go to VI(IV) (a) It is found in deep sea waters and is a costly wedding gift in Japan. – [P](b) It is commonly known as bath sponge. [Q](V) (a) It is commonly known as the sea anemone. – [R](b) It is commonly known as sea fur. – [S](VI) (a) It is segmented and sanguivorous. – [T](b) It bears jointed feet and chitinous exoskeleton. – [U]Identify organisms P, Q, R, S, T and U. |
| A. | P-Euplectella, Q-Spongia, R-Adamsia, S-Obelia, T-Hirudinaria, U-Periplanefa |
| B. | P-Fasciola, Q-Limax, R-Palaemon, S-Ascaris, T-Sepia, U-Wuchereha |
| C. | P-Asterias, Q-Nereis, R-Tubifex, S-Loligo, T-Hydra, U-Enterobius |
| D. | P-Pheretima, Q-Chiton, R-Antedon, S-Aphrodita, T-Aurelia, U-Sepia |
| Answer» B. P-Fasciola, Q-Limax, R-Palaemon, S-Ascaris, T-Sepia, U-Wuchereha | |
| 1313. |
Which is an example of a coelenterate? |
| A. | Sea pen |
| B. | Sea cucumber |
| C. | Sea horse |
| D. | Sea dollar |
| Answer» B. Sea cucumber | |
| 1314. |
Which one of the following is correct when we write scientific name of an organism? |
| A. | Scientific name of potato is Solanum tuberosum. |
| B. | First part of the scientific name is genus. |
| C. | Second part of the scientific name is the species. |
| D. | All the above |
| E. | None of these |
| Answer» E. None of these | |
| 1315. |
A list of animals (i-viii) is given. Classify them as acoelomates, coelomates and pseudocoelomates and select the correct option.(i) Adamsia(ii) Wuchereria(iii) Nereis(iv) Earthworm(v) Planaria(vi) Ascaris(vii) Liver fluke(viii) Scorpion |
| A. | AcoelomatesCoelomatesPseudocoelomates(i), (v), (vii)(iii), (iv), (viii)(ii), (vi) |
| B. | AcoelomatesCoelomatesPseudocoelomates(i), (iv)(ii), (viii)(iii), (v), (vi), (vii) |
| C. | AcoelomatesCoelomatesPseudocoelomates(vi), (vii), (viii)(i), (ii), (iii)(iv), (v) |
| D. | AcoelomatesCoelomatesPseudocoelomates(iv), (v), (vi)(i), (iii)(ii), (vii), (viii) |
| Answer» B. AcoelomatesCoelomatesPseudocoelomates(i), (iv)(ii), (viii)(iii), (v), (vi), (vii) | |
| 1316. |
Which of the following statements aptly describes the phylum "Annelida"? |
| A. | A group of animals in which the space between the ectoderm and endoderm is simply filled with mesenchymal mesodermal cells. |
| B. | A group of animals with long, flat body without true segmentation, that lives in water or moist soil or are parasitic invertebrates. |
| C. | A group of animals that have an elongated, cylindrical and unsegmented body. |
| D. | A group of animals that have an elongated body that is composed of partitions called metameres or annulations. |
| Answer» E. | |
| 1317. |
Lichens are symbiotic relationship between: |
| A. | Paramecium and algae |
| B. | Fungi and blue green algae |
| C. | Fungi and amoeba |
| D. | Amoeba and bacteria |
| E. | None of these |
| Answer» C. Fungi and amoeba | |
| 1318. |
____ are known as amphibians of plant kingdom. |
| A. | Thallophytes |
| B. | Bryophytes |
| C. | Pteridophytes |
| D. | Angiosperms |
| E. | None of these |
| Answer» C. Pteridophytes | |
| 1319. |
Which of the following is a diploblastic animal? |
| A. | Hydra |
| B. | Leech |
| C. | Ascaris |
| D. | Fasciola |
| Answer» B. Leech | |
| 1320. |
Plants which do not have seeds are called: |
| A. | Gymnosperms |
| B. | Phanerogams |
| C. | Cryptogams |
| D. | Angiosperms |
| E. | None of these |
| Answer» D. Angiosperms | |
| 1321. |
Who proposed five kingdom classification? |
| A. | Hyman |
| B. | Linnaeus |
| C. | Whittaker |
| D. | Aristotle |
| Answer» D. Aristotle | |
| 1322. |
Riddhi drew a classification chart as shown below. Now, select the option that correctly identifies the characters X, Y, P or Q. |
| A. | X is eucoelomic body cavity. |
| B. | P is bilateral body symmetry. |
| C. | Q is radial body symmetry. |
| D. | Y is coelomic cavity lined by mesoderm. |
| Answer» E. | |
| 1323. |
Which of the following sequences of taxa and the animal kingdom is correct? |
| A. | Kingdom, phylum, class, order, family, species and genus. |
| B. | Kingdom, phylum, class, order, family, genus and species. |
| C. | Kingdom, phylum, class, family, order, species and genus. |
| D. | Phylum, kingdom, class, family, order, genus and species. |
| Answer» C. Kingdom, phylum, class, family, order, species and genus. | |
| 1324. |
Which of the following is the distinguishing feature of a nematode? |
| A. | Pseudo coelom and flame cells |
| B. | Pseudo coelom and longitudinal muscle in the body wall |
| C. | Flame cells and longitudinal muscle in the body wall |
| D. | Syncytial epidermis and diploblastic nature |
| Answer» B. Pseudo coelom and longitudinal muscle in the body wall | |
| 1325. |
Which one of the following statements is correct? Statement 1: Bule-green algae belongs to the kingdom monera. Statement 2: Mycoplasma is the phylum of the kingdom monera. |
| A. | Statement 1 only |
| B. | Statement 2 only |
| C. | Both statements are correct |
| D. | Both statements are incorrect |
| E. | None of these |
| Answer» B. Statement 2 only | |
| 1326. |
Which of the following trees/plants have seeds enclosed in the fruit? |
| A. | Angiosperms |
| B. | Gymnosperms |
| C. | Cryptogams |
| D. | All of the above |
| Answer» B. Gymnosperms | |
| 1327. |
Archaebacteria and eubacteria are the subkingdoms of the kingdom: |
| A. | Fungi |
| B. | Amphibia |
| C. | Mammalia |
| D. | Monera |
| E. | None of these |
| Answer» E. None of these | |
| 1328. |
Who is the author of 'The Origin of Species' book? |
| A. | Ernst |
| B. | Darwin |
| C. | Linnaeus |
| D. | Schwartz |
| E. | None of these |
| Answer» C. Linnaeus | |
| 1329. |
Select the pair that shows the same relationship as the animals in the box. Amoeba : Paramecium |
| A. | Rhizopus : Chlamydomonas |
| B. | Candida : Saccharomyces |
| C. | Pteridium : Fasciola |
| D. | Albugo : Adiantum |
| Answer» C. Pteridium : Fasciola | |
| 1330. |
Which of the following animals can keep their body temperature constant? |
| A. | Sparrows and frogs |
| B. | Sharks and sea horses |
| C. | Whales and bats |
| D. | Frogs and snakes |
| Answer» D. Frogs and snakes | |
| 1331. |
Identify the Part and the organism from which the cell be from |
| A. | The feathers of the bird. |
| B. | The stem of the cactus. |
| C. | The wing of the bird. |
| D. | The anther of the flower. |
| Answer» C. The wing of the bird. | |
| 1332. |
The e/m ratio is not constant for |
| A. | Cathode rays |
| B. | Positive rays |
| C. | \[\alpha\] - rays |
| D. | \[\beta\] - rays |
| Answer» C. \[\alpha\] - rays | |
| 1333. |
When a cell is put in a solution of higher concentration ______ occurs and the cell _____. |
| A. | Endosmosis, swells |
| B. | Exosmosis, shrinks |
| C. | Endosmosis, shrinks |
| D. | Exosmosis, swells |
| Answer» C. Endosmosis, shrinks | |
| 1334. |
Which pair is isoelectronic? (AFMC 198(c) |
| A. | Ar and\[Cl\] |
| B. | \[\text{N}{{\text{a}}^{+}}\]and Ne |
| C. | \[\text{N}{{\text{a}}^{+}}\]and Mg |
| D. | Mg and Ne |
| Answer» C. \[\text{N}{{\text{a}}^{+}}\]and Mg | |
| 1335. |
Ratio of mass of proton and electron is |
| A. | infinite |
| B. | \[\text{1}.\text{8}\times \text{1}{{0}^{\text{3}}}\] |
| C. | 1.8 |
| D. | none of these |
| Answer» C. 1.8 | |
| 1336. |
Two samples X and Y of a pure substance obtained by two different methods contain elements P and Q. Substance X has a mass of 2.25 g and contains 0.90 g of 0. Substance Y is made up of 60% P and 40% 0 by weight. This is an illustration of |
| A. | Law of multiple proportions |
| B. | Law of constant proportions |
| C. | Law of reciprocal proportions |
| D. | Gay-Lussac's law of combining volumes. |
| Answer» C. Law of reciprocal proportions | |
| 1337. |
Direction: Refer to the given key and answer the following question.(i) Membrane with definite pores - T(ii) Inner membrane with stalked particles - Q(iii) Inner membrane connected into stacks like structures - R(iv) Sac like organelle containing hydrolytic enzymes - S(v) Membrane less organelle composed of one large and one small subunit - TSelect the option that correctly identifies any of these organelles. |
| A. | P - Nucleus, Q - Mitochondrion, S - Ribosome |
| B. | Q - Chloroplast, R - Mitochondrion, T - Ribosome |
| C. | R - Chloroplast, S - Lysosome, T - Ribosome |
| D. | P - Nucleus, Q - Chloroplast, R - Mitochondrion |
| Answer» D. P - Nucleus, Q - Chloroplast, R - Mitochondrion | |
| 1338. |
What is the mass of one molecule of oxygen? |
| A. | \[5.31\times {{10}^{-23}}g\] |
| B. | \[5.33\times {{10}^{23}}g\] |
| C. | \[5.25\times {{10}^{23}}g\] |
| D. | \[5.02\times {{10}^{-23}}g\] |
| Answer» B. \[5.33\times {{10}^{23}}g\] | |
| 1339. |
Experimental evidence for the existence of atomic nucleus comes from |
| A. | Millikan's oil drop method |
| B. | Atomic absorption spectroscopy |
| C. | The magnetic bending of cathode rays |
| D. | Alpha rays scattering by a thin metal foil |
| Answer» E. | |
| 1340. |
Which of the following statements are true about the nucleus of a cell? |
| A. | It is bounded by two membranes |
| B. | Controls all activities in the cell |
| C. | Contains genetic information |
| D. | All of these |
| Answer» E. | |
| 1341. |
Chloroplast is absent in which of these cells? |
| A. | Stem |
| B. | Leaf |
| C. | Root |
| D. | Sepal |
| Answer» D. Sepal | |
| 1342. |
A neutral atom (atomic number > (a) has |
| A. | electron and proton |
| B. | neutron and electron |
| C. | neutron, electron and proton |
| D. | neutron and proton |
| Answer» D. neutron and proton | |
| 1343. |
Unicellular algae X and Y of the same species were taken and experimentally, chloroplasts were removed from cell X.After some time, they both were kept in bright sunlight for few hours and then iodine test was performed on them. What will be the results? |
| A. | Both X and V will turn blue-black. |
| B. | Cell X will turn blue-black. |
| C. | Cell Y will turn blue-black. |
| D. | Both X and Y will remain as they originally were. |
| Answer» D. Both X and Y will remain as they originally were. | |
| 1344. |
206 g of molten sodium bromide is decomposed electrolytically. The maximum mass of sodium obtained is[Atomic mass of Na = 23 u, Br = 80 u] |
| A. | 40 g |
| B. | 46 g |
| C. | 52 g |
| D. | 23 g |
| Answer» C. 52 g | |
| 1345. |
Which characteristic feature make mitochondria and chloroplasts as semiautonomous organelles? |
| A. | They oxidise carbohydrates and fatty acids. |
| B. | They have their own DNA and ribosomes. |
| C. | They are present in all kinds of cells. |
| D. | They provide energy to the cell. |
| Answer» C. They are present in all kinds of cells. | |
| 1346. |
The total number of protons present in all the elements up to Zn in the periodic table is |
| A. | 300 |
| B. | 350 |
| C. | 465 |
| D. | 450 |
| Answer» D. 450 | |
| 1347. |
Selenium ingestion of \[90\] micrograms per day causes loss of hair. How many selenium atoms are there in this sample? (Atomic weight of \[Se=78.96\]) |
| A. | \[6.8\times {{10}^{23}}\]atoms |
| B. | \[8.8\times {{10}^{17}}\]atoms |
| C. | \[8.8\times {{10}^{22}}\]atoms |
| D. | \[6.9\times {{10}^{17}}\]atoms |
| Answer» E. | |
| 1348. |
Which of the following molecules contains highest number of particles? |
| A. | 8 g of \[\text{C}{{\text{H}}_{\text{4}}}\] |
| B. | 4.4 g of \[\text{C}{{\text{O}}_{\text{2}}}\] |
| C. | 34.2 g of\[{{\text{C}}_{\text{12}}}{{\text{H}}_{\text{22}}}{{\text{O}}_{\text{11}}}\] |
| D. | \[\text{2 g of }{{\text{H}}_{2}}\] |
| Answer» E. | |
| 1349. |
Robert Hooke is a well-known scientist as he discovered _______. |
| A. | Lysosome |
| B. | Vacuole |
| C. | Cell |
| D. | Nucleus |
| Answer» D. Nucleus | |
| 1350. |
The energy released within an animal cell would be severely disturbed by the removal of which of the labelled cell organelles? |
| A. | P |
| B. | Q |
| C. | R |
| D. | S |
| Answer» B. Q | |