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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 901. |
Coralloid roots of Cycas is distinguished from angiosperm roots byA. absence of pithB. having zylem tissueC. absence of algal zoneD. presence of algal zone |
| Answer» Correct Answer - D | |
| 902. |
Which of the following is found in algal zone of Cycas coralloid roots ?A. Blue green algaeB. Red algaeC. DiatomsD. Brown algae |
| Answer» Correct Answer - A | |
| 903. |
Megasporophyll of Cycas is homologous toA. stamenB. carpelC. sepalD. petal |
| Answer» Correct Answer - B | |
| 904. |
Cycas has the largestA. ovule and female coneB. largest male gametophyteC. spermD. all of the above. |
| Answer» Correct Answer - C | |
| 905. |
In angiosperms the female gametophyte is also known asA. NucellusB. Embryo sacC. EndospermD. Stigma |
| Answer» Correct Answer - B | |
| 906. |
Comparable to angiospersm, which of the following algae exhibits diplontic life cycle ?A. SpirogyraB. FucusC. PolysiphoniaD. Ulothrix |
| Answer» Correct Answer - B | |
| 907. |
Haplo - diplontic condition is exhibited byA. Most algaeB. BryophytesC. AngiospermsD. Gymnosperms |
| Answer» Correct Answer - B | |
| 908. |
Fusion between morphologically alike gametes is referred to asA. isogamyB. anisogamyC. oogamyD. syngamy. |
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Answer» Correct Answer - A In isogamy, both the fusing gametes are morphologically and physiologically similar. They may be flagellate or non-flagellate. |
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| 909. |
Amphibians of plant kingdom areA. AlgaeB. BryophytesC. PteridophytesD. Gymnosperms |
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Answer» Correct Answer - B Amphibians of plant kingdom are bryophytes. |
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| 910. |
First amphibian plants of the plant kingdom areA. ThallophytesB. BryophytesC. pteridophytesD. Gymnosperms |
| Answer» Correct Answer - B | |
| 911. |
Which of the following is called amphibians of plant kingdom ?A. BryophytesB. PteridophytesC. GymnospermsD. Algae |
| Answer» Correct Answer - A | |
| 912. |
Brophytes are also called __________ of plant kingdom.A. FishesB. AmphibiansC. ReptilesD. Aves |
| Answer» Correct Answer - B | |
| 913. |
The giant redwood tree (Sequoia sempervirens) is a/anA. angiospermB. free fernC. pteridophyteD. gymnosperm |
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Answer» Sequia semervirens is a gymnspermic plant. It is a group of plants having thick, woody , branched stems. These plants also have some xeric adaptations which help them survive in adverse climatic conditions. The order examples are incorrect because pteridophytes is primitive group, no trees is included in this. Ferms are included in Pteridophytes. Angiosperms are different from gymnosperms in seed habit and adaptations |
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| 914. |
The gaint Redwood tree (Sequoia sempervirens) is a/anA. AngiospermB. Tree fernC. PteridophyteD. Gymnosperm |
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Answer» Correct Answer - D The gaint Redwood tree (Sequia semprevirens) is a gymnosperm. |
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| 915. |
Alginic acid is present in the cell wall ofA. bacillariophyceaeB. EuglenaC. LaminariaD. Diatoms |
| Answer» Correct Answer - C | |
| 916. |
Assertion. Gametophytic plant body orf bryophytes dominate over sporophytic plant body. Reason. Gametophytes produce gametes whereas sporophytes produce spores.A. If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.C. If Assertion is true but the Reason is false.D. If both Assertion and Reason are false. |
| Answer» Correct Answer - B | |
| 917. |
Gametophytic and sporophytic phases are independent inA. bryophyteB. pteridophyteC. gymnospermsD. all of the above. |
| Answer» Correct Answer - B | |
| 918. |
Consider the following statements regarding the major pigments and stored food in the different groups of algae and select the correct options given (A) In chlorophyceae the stored food material is starch and the major pigments are chlorophyll-a and d (B) In phaeopphyceae, laminarin is the stored food and major pigments are chlorophyll-a and b (C) In rhodophyceae, floridean starch is the stored food and the major pigments are chlorophyll-a, d and phycoeythrin.A. I is correct, but II and III are incorrectB. I and II are correct, but III is incorrectC. I and III are correct, but II is incorrectD. III is correct, but I and II are incorrect |
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Answer» Correct Answer - D I. In Chlorophyceae, the stored food material is starch and the major pigment are chlorophyll-a and b. II. In phaeophyceae, laminarin is the stored food and major pigments are chlorophyll-a and c. |
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| 919. |
Consider the following statements regarding the major pigments and stored food in the different groups of algae and select the correct options given (A) In chlorophyceae the stored food material is starch and the major pigments are chlorophyll-a and d (B) In phaeopphyceae, laminarin is the stored food and major pigments are chlorophyll-a and b (C) In rhodophyceae, floridean starch is the stored food and the major pigments are chlorophyll-a, d and phycoeythrin.A. (i) is correct, but (ii) and (iii) are incorrectB. (i) and (ii) are correct, but (iii) is incorrectC. (i) and (iii) are correct, but (ii) is incorrectD. (iii) is correct, but (i) and (ii) are incorrect |
| Answer» Correct Answer - D | |
| 920. |
Consider the following statements regarding the major pigments and stored food in the different groups of algae and select the correct options given (A) In chlorophyceae the stored food material is starch and the major pigments are chlorophyll-a and d (B) In phaeopphyceae, laminarin is the stored food and major pigments are chlorophyll-a and b (C) In rhodophyceae, floridean starch is the stored food and the major pigments are chlorophyll-a, d and phycoeythrin.A. A is correct, but B and C are wrongB. A and B are correct, but C is wrongC. A and C are correct, but B is wrongD. C is correct, but A and B are wrong |
| Answer» Correct Answer - e | |
| 921. |
Consider the following statements regarding the major pigments and stored food in the different groups of algae and select the correct options given (A) In chlorophyceae the stored food material is starch and the major pigments are chlorophyll-a and d (B) In phaeopphyceae, laminarin is the stored food and major pigments are chlorophyll-a and b (C) In rhodophyceae, floridean starch is the stored food and the major pigments are chlorophyll-a, d and phycoeythrin.A. (a) is correct, but (b) and (c) are wrong.B. (a) and (b) are correct, but (c) is wrong.C. (a) and (c) are correct, but (b) is wrong.D. (b) is correct, but (a) and (c) are wrong |
| Answer» Correct Answer - C | |
| 922. |
Go through the following statements (i) IN chlorophyceae the flagella re 2 in number, unequal in size and lateral in position (ii) In phaeophyceae flagella are 2-8 in number, equal in size and apical in position (iii) Chlorella and Spirullina re rich in proteins and are used as food supplements even by space travellers. (iv) The leaves in pteridophyta are microphylls as in Selaginella or macrophylls as in ferns. Which of these are correctA. i,ii,iiiB. ii,iiiC. i,ii,ivD. iii,iv |
| Answer» Correct Answer - D | |
| 923. |
Chlorophyll common between phaeophyceae and bacillariophyceae but absent in rhodophyceae isA. chlorophyll aB. chlorophyll bC. chlorophyll cD. chlorophyll e |
| Answer» Correct Answer - C | |
| 924. |
Which of the following groups of algae belongs to class Rhodophyceae ?A. Laminaria,Fucus,Porphyra, VolvoxB. Gelidium, Porphyra,Dictyota,FucusC. Gracilaria,Gelidium,Porphyra,PoltsiphoniaD. Sargassum,Laminaria,Fucus,Dictyota |
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Answer» Correct Answer - C Gracilaria, Gelidium, Porphyra and Polysiphonia belong to class rhodophyceae. |
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| 925. |
Match the column I and II and choose the correct combination from the options given `{:(,"Column-I",,"Column-II"),("(a)","Green alga","(i)","Dictyota"),("(b)","Brown alga","(ii)","Porphyra"),("(c)","Red alga","(iii)","Spirogyra"):}`A. a-3,b-2,c-1B. a-3,b-1,c-2C. a-2,b-3,c-1D. a-1,b-2,c-3 |
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Answer» Correct Answer - B `{:("Green alga","Spirogyra"),("Brown alga","Dictyota"),("Red alga","Porphyra"):}` |
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| 926. |
Protonema isA. Haploid nd is found in mossesB. Diploid and is found in liverwortsC. Diploid and is found in pteridophytesD. Haploid and is found in pteridophytes |
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Answer» Correct Answer - A Portonema is haploid structure and is found in mosses. |
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| 927. |
Why are bryophytes called the amphibians of the plant kingdom? |
| Answer» Like amphibians, the bryophytes grow on land but require water to complete their life cycle. | |
| 928. |
Assertion: Biennial plants flower in two year. Reason: The biennial plants live for two years.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false |
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Answer» Correct Answer - b Biennial plants live for two favourable seasons During the first season, the plants grow in size and store food. In the second season. They bear flowers that form fruits. |
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| 929. |
Algin is a phycocolloid, obtained from the cell wall ofA. Macrocystis and PorphyridiumB. Mastigocladus and LaminariaC. Microcystis and NereocystisD. Macrocystis and Fucus |
| Answer» Correct Answer - D | |
| 930. |
The protonema of moss which is not formed from spore is calledA. ProthallusB. Leafy stageC. `1^(@)` protonemaD. `2^(@)` protonema |
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Answer» Correct Answer - D The protonema of moss which is not formed from spore is called `2^(@)` protonema (it is formed from `1^(@)` protonema) |
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| 931. |
In most green algae, pyrenoids, the storage bodies, are located in_____A. chloroplastsB. mitochondriaC. cytoplasmD. nucleus |
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Answer» Correct Answer - A Pyrenoids are cellular micro-compartments that are not membrame bound organelles. Pyrenoids are found within chloroplast. Chloroplasts generally contain one to many pyrenoids for storage of stach. |
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| 932. |
A parasitic algae isA. PorphyraB. SargassumC. LaminariaD. Cephaleuros |
| Answer» Correct Answer - D | |
| 933. |
A floating brown algae that covers thousands of hectares of sea in Atlantic ocean isA. FucusB. NereocystisC. SargassumD. Dictyota |
| Answer» Correct Answer - C | |
| 934. |
Give the scientific names of algae which - (a) causes a disease in tea plants (b) is edible ( c) grows in polar regions on ice and snow (d) is siphonaceous. |
| Answer» (a) Cephaleuros (b) Chlorella (c ) Haematocococus nivalis (d) Caulerpa. | |
| 935. |
If a moss protonema is developed from few cells of the moss capsule wall, then most probably it will beA. HaplidB. DiploidC. TriploidD. Polyploid |
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Answer» Correct Answer - b Capsule wall is a diploid part of sporphyte, if protonema is develops from its cells, it must be diploid. |
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| 936. |
Assertion: Pyrenoids are utilised during starvation. Reason: Pyrenoids are proteinaceous bodies.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false |
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Answer» Correct Answer - b The chloroplasts of green algae contain one or more distinct, rounded, proteninaceous bodies called the pyrenoids. Prenoids diminish in size and ultimately disappear if the plant is under conditions of starvation. They reappear when the conditions become favourable. |
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| 937. |
An edible red algae isA. FucusB. SargassumC. AcetabulariaD. Porphyra |
| Answer» Correct Answer - D | |
| 938. |
Leafy stage develops from the secondary protonema as aA. Apical budB. Terminal budC. Lateral budD. Meristem |
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Answer» Correct Answer - C Leafy stage develops from the secondary protonema as a lateral bud. |
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| 939. |
Red eye spot (stigma) is meant forA. movementB. visionC. photoreceptionD. photosynthesis |
| Answer» Correct Answer - C | |
| 940. |
The heterosporous pteridophytes areA. Lycopodium and PterisB. Selaginella and PsilotumC. Selaginella and SalviniaD. Dryopteris and Adiantum. |
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Answer» Correct Answer - C Heteropory is the production of spores of two different sizes and of two different developmental patters-smaller male or microspores and larger female ormegaspores. Heterospory is the most important evolutionary development in the vascular plants because it has ultimaetely led to seed development e.g.,selaginella, salvinia, azolla etc. |
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| 941. |
Edible seeds are obtained fromA. Mangifera indicaB. Pinus gerardianaC. P. roxburghiiD. Dalbergia sissoo |
| Answer» Correct Answer - A | |
| 942. |
A : Inmosses, second stage of gametophyte consists of upright, slender axes bearing spirally arranged leaves. R : This stage of gametophyte consists of sex organs.A. If the Assertion & Reason are true and the reason is the correct. Explanation of the assertion.B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.C. If Assertion is true statement but Reason is false.D. If both Assertion and Reason are false statements. |
| Answer» Correct Answer - B | |
| 943. |
Assertion: In green algae, the eye-spot is present in the cell. Reason: Eye-spot is meant for respiration.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false |
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Answer» Correct Answer - c In green algae the eye spot is usually associated with the chrlorplast. Eye-spot is considered as a photoreceptive organ. |
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| 944. |
The moss which forms dense extensive mats on the soil preventsA. uprooting of treesB. soil erosionC. falling of leavesD. evaporation of water from the soil |
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Answer» Correct Answer - B mosses form a protective covering over the crumbling soil of cliffs and prevent the ruching rainwater from cutting deeply into the soil these grow in dense mats so firmly interwined around the soil particles that there can be little erosion, even on a steep hill side. |
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| 945. |
Read the following statements : a. Majority of the pteridophytes are heterosporous b. Gymnosperms are usually heterosporous c. Microphylls are found in Selaginella d. Dicotyledonae is the class of pea Which statements are incorrect ?A. b,dB. a,bC. a,cD. b,c |
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Answer» Correct Answer - B Majority of the pteridophytes are homosporous. Gymnosperms are always heterosporous. |
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| 946. |
Which stage of the moss consist of upright, slender axis bearing spirally arranged leaves ?A. Protonema stageB. Prothallus stageC. Leafy stageD. Sporophyte |
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Answer» Correct Answer - C Leafy stage of the moss consist of upright, slender axis bearing spirally arranged leaves. |
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| 947. |
Assertion : Mosses reduce the impact of falling rain and prevent soil erosion Reason : Mosses form dense mats on the soil.A. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true and but reason is not the correct explanation of the assertionC. If assertion is true but reason is falseD. If both assertion and reason are false |
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Answer» Correct Answer - A Mosses reduce the impact of falling rain and prevent soil erosion as mosses from dense mats on the soil. |
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| 948. |
Maiden Hair Tree isA. Ginkgo bilobaB. GnetumC. EphedraD. Welwitschia |
| Answer» Correct Answer - A | |
| 949. |
In pteridophytes, the sporophyte is produced by theA. GameteB. SporeC. ZygoteD. Gametophyte |
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Answer» Correct Answer - C In pteridophytes the sporophyte (2n) in produced by the zygote (2n) by mitotic division. |
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| 950. |
Assertion: Mosses are of great ecological importance. Reason: Mosses prevent soil erosion by forming dense mat on the soilA. If both assertion and reason are true and reason is the correct explanation of assertion.B. if both assertion and reason are true but reason is not the correct explanation of assertionC. if assertion is true but reason is false.D. if both assertion and reason are false. |
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Answer» Correct Answer - B Mosses along with lichens are the first orgainsms to colonis rocks and hence, are of great ecological importance. They decompose recks making the substance suitable for the growth of higher plants. Since mosses form dense mats ont the soil, they reduce the impact of falling rain and prevent soil erosion. |
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