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MCQOPTIONS
This section includes 14620 Mcqs, each offering curated multiple-choice questions to sharpen your NEET knowledge and support exam preparation. Choose a topic below to get started.
| 9401. |
Inverted 'Omega' shaped arrangement of vascular bundles is found in |
| A. | Cycas leaflet |
| B. | Cycas rachis |
| C. | Cycas stem |
| D. | Cycas root |
| Answer» C. Cycas stem | |
| 9402. |
Cycas trunk is covered with |
| A. | Leaves |
| B. | Leaf bases |
| C. | Scale leaves |
| D. | Both (a) and (b) |
| Answer» E. | |
| 9403. |
The microsporophyll of Cycas represents a |
| A. | Male gamete |
| B. | Stamen |
| C. | Pollen grain |
| D. | Pollinium |
| Answer» C. Pollen grain | |
| 9404. |
Diploxylic condition occurs in Cycas in [APMEE 2002] |
| A. | Root |
| B. | Stem |
| C. | Coralloid root |
| D. | Leaflet |
| Answer» E. | |
| 9405. |
What is true about foliage of Cycas [AMU 2002] |
| A. | Palmate and pinnate foliage leaves |
| B. | Brown scales and unpinnately green foliage leaves |
| C. | Oblong and long leaves |
| D. | Green and scaly leaves |
| Answer» C. Oblong and long leaves | |
| 9406. |
Megasporophyll of Cycas is homologous to [AIIMS 2002] |
| A. | Carpel |
| B. | Stamen |
| C. | Petal |
| D. | Sepal |
| Answer» B. Stamen | |
| 9407. |
Vegetative reproduction in Cycas occurs by [RPMT 1998] |
| A. | Scale leaves |
| B. | Sporophylls |
| C. | Bulbils |
| D. | Fragmentation |
| Answer» D. Fragmentation | |
| 9408. |
Which is incorrect about Cycas [CBSE PMT 1998] |
| A. | Its xylem has vessels |
| B. | It has circinate venation |
| C. | It does not have well organised female flower |
| D. | Its roots possess some blue?green algae |
| Answer» B. It has circinate venation | |
| 9409. |
Sago of Cycas is given to patients with stomach disorders because it is [AIIMS 1997] |
| A. | Cheap |
| B. | Easily digestible with less starch |
| C. | Tastier |
| D. | With high nutritive value |
| Answer» C. Tastier | |
| 9410. |
Fern character in Cycas is [AFMC 2001] |
| A. | Coralloid roots |
| B. | Tap root system |
| C. | Circinate venation |
| D. | Reticulate venation |
| Answer» D. Reticulate venation | |
| 9411. |
Cycas and ferns resemble in possessing [CPMT 1991] |
| A. | Circinate venation |
| B. | Pollen tube |
| C. | Ovule |
| D. | Seeds |
| Answer» B. Pollen tube | |
| 9412. |
Coralloid roots of Cycas possess a symbiotic alga [CPMT 1991, 93; Bihar PMT 1996; BHU 1998; Pb. PMT 1999] |
| A. | Aulosira |
| B. | Spirogyra |
| C. | Ulothrix |
| D. | Anabaena |
| Answer» E. | |
| 9413. |
Male gametes of cycads are [CPMT 1992] |
| A. | Rounded and nonciliate |
| B. | Sickle - shaped biflagellate |
| C. | Boat ? shaped nonciliate |
| D. | Large, top-like, spirally twisted with cilia |
| Answer» E. | |
| 9414. |
In Cycas, the endosperm is [CPMT 1989, 91] |
| A. | Sporophytic structure |
| B. | Gametophytic structure |
| C. | New structure |
| D. | Formed after fertilization |
| Answer» C. New structure | |
| 9415. |
Pollen grain of Cycas are shed at stage [MP PMT 1984; CPMT 1990, 93] |
| A. | One - celled |
| B. | Two - celled |
| C. | Three - celled |
| D. | Four - celled |
| Answer» D. Four - celled | |
| 9416. |
In Cycas, the ovules are attached to megasporophyll [CPMT 1989] |
| A. | Laterally |
| B. | Dorsally |
| C. | Ventrally |
| D. | Apically |
| Answer» B. Dorsally | |
| 9417. |
In Cycas, pollination is by [MP PMT 1984; BHU 1986; CPMT 1990; DPMT 1999] |
| A. | Wind |
| B. | Insect |
| C. | Water |
| D. | Both (a) and (b) |
| Answer» B. Insect | |
| 9418. |
In which plant largest sperms are found [CBSE PMT 1998; CPMT 1998; MHCET 2000] |
| A. | Cycas |
| B. | Pinus |
| C. | Mango |
| D. | Sunflower |
| Answer» B. Pinus | |
| 9419. |
Wood of Cycas is [RPMT 1985; APMEE 1996; Wardha 2002; DPMT 2004] |
| A. | Monoxylic and manoxylic |
| B. | Manoxylic and polyxylic |
| C. | Diploxylic |
| D. | Monoxylic |
| Answer» C. Diploxylic | |
| 9420. |
Cycas revoluta is [RPMT 1985, Pb. PMT 1997, CET Chd. 1999, CPMT 2002] |
| A. | Date Palm |
| B. | Sea Palm |
| C. | Royal Palm |
| D. | Sago Palm |
| Answer» E. | |
| 9421. |
Cycas has the largest [CPMT 1991] |
| A. | Ovule |
| B. | Egg |
| C. | Sperm |
| D. | All of these |
| Answer» E. | |
| 9422. |
Which is not a characteristic feature of Cycas [CPMT 1986] |
| A. | Naked ovules |
| B. | Circinate vernation |
| C. | Vessels |
| D. | Girdling leaf traces |
| Answer» D. Girdling leaf traces | |
| 9423. |
Spermatozoid of Cycas is [CPMT 1991, APMEE 1995; JIPMER 2000] |
| A. | Biflagellate |
| B. | Nonflagellate |
| C. | Uniflagellate |
| D. | Multiciliated |
| Answer» E. | |
| 9424. |
Cycas occurs commonly in [AMU 1999] |
| A. | South America |
| B. | North America |
| C. | South East Asia |
| D. | Europe |
| Answer» D. Europe | |
| 9425. |
Top-shaped multiciliate male gametes, and the mature seed which bears only one embryo with two cotyledons, are characteristic features of [CBSE PMT 2005] |
| A. | Polypetalous angiosperms |
| B. | Gamopetalous angiosperms |
| C. | Conifers |
| D. | Cycads |
| Answer» E. | |
| 9426. |
Which one of the following is a living fossil [CBSE PMT 2004] |
| A. | Saccharomyces |
| B. | Spirogyra |
| C. | Cycas |
| D. | Moss |
| Answer» D. Moss | |
| 9427. |
Cycas is a .... plant [MHCET 2001] |
| A. | Unisexual |
| B. | Bisexual |
| C. | Hermaphrodite |
| D. | Gynandrous |
| Answer» B. Bisexual | |
| 9428. |
Diploxylic or polyxylic vascular bundles are found in [JIPMER 1985; AFMC 1995] |
| A. | Pinus |
| B. | Dryopteris |
| C. | Cycas |
| D. | Funaria |
| Answer» D. Funaria | |
| 9429. |
Angiosperm in which Nostoc remains endophyte is |
| A. | Melia indica |
| B. | Arachis hypogea |
| C. | Gunnera manicata |
| D. | None of these |
| Answer» D. None of these | |
| 9430. |
The matrix around Nostoc colony is |
| A. | Gelatinous |
| B. | Hard and corky |
| C. | Cartilaginous |
| D. | No matrix at all |
| Answer» B. Hard and corky | |
| 9431. |
Pigment phycocyanin and phycoerythrin are found in [Kerala CET 2005] |
| A. | Bacillariophyceae |
| B. | Archaebacteria |
| C. | Eubacteria |
| D. | Cynobacteria |
| E. | Chlorophyceae |
| Answer» E. Chlorophyceae | |
| 9432. |
Which of the following plants is used as biofertiliser [CET 2005] |
| A. | Nostoc |
| B. | Funaria |
| C. | Volvox |
| D. | Rhizopus |
| Answer» B. Funaria | |
| 9433. |
Auxospores and hormocysts are formed respectively, by [CBSE PMT 2005] |
| A. | Some diatoms and several cyanobacteria |
| B. | Some cyanobacteria and many diatoms |
| C. | Several cyanobacteria and several diatoms |
| D. | Several diatoms and a few cyanobacteria |
| Answer» E. | |
| 9434. |
The most primitive in the following are [BHU 2005] |
| A. | Cyanobacteria |
| B. | Bryophytes |
| C. | Gymnosperms |
| D. | Monocots |
| Answer» B. Bryophytes | |
| 9435. |
Which of the following statements is right [KCET 2004] |
| A. | Fronds are found in bryophytes |
| B. | Multiciliate sperms are found in angiosperms |
| C. | Diatoms produce basidiospores |
| D. | Heterocysts are found in Nostoc |
| Answer» E. | |
| 9436. |
Hormogonia of cyanobacteria are |
| A. | Spore producing organs |
| B. | Products of syngamy |
| C. | Fragmented trichomes |
| D. | Cells adjacent to heterocyst |
| Answer» D. Cells adjacent to heterocyst | |
| 9437. |
Which species of Nostoc produces endospores |
| A. | Nostoc microscopilum |
| B. | Nostoc commune |
| C. | Both (a) and (b) |
| D. | None |
| Answer» D. None | |
| 9438. |
Farmers have reported over 50% higher yields of rice by using which of the following biofertilizer [MP PMT 1997; CBSE PMT 1993, 98, 99] |
| A. | Mycorrhiza |
| B. | Azolla pinnata |
| C. | Cyanobacteria |
| D. | Legume-Rhizobium symbiosis |
| Answer» D. Legume-Rhizobium symbiosis | |
| 9439. |
Which of the following may be used in the reclaimation of soil |
| A. | Mycoplasma |
| B. | Virus |
| C. | Nostoc |
| D. | None of these |
| Answer» D. None of these | |
| 9440. |
Cyanobacteria are [DPMT 2002; BVP 2004] |
| A. | Mosses which attack bacteria |
| B. | Bacteria which attack cyanophyceae |
| C. | Autotrophic organism with phycocyanin |
| D. | None of these |
| Answer» D. None of these | |
| 9441. |
Nitrogen fixation by Nostoc takes place in [MP PMT 1996; Orissa JEE 2004] |
| A. | Heterocysts |
| B. | Vegetative cells |
| C. | Akinetes |
| D. | Hormogonia |
| Answer» B. Vegetative cells | |
| 9442. |
Which of the following may cause water blooms [BVP 2004] |
| A. | Bacteria |
| B. | Mycoplasma |
| C. | Virus |
| D. | Blue-green algae |
| Answer» E. | |
| 9443. |
Anabaena has an immense potential as a [DPMT 2004] |
| A. | Biofertilizer |
| B. | Food |
| C. | Medicines |
| D. | Sewage disposal |
| Answer» B. Food | |
| 9444. |
Nostoc may form |
| A. | Simple colony |
| B. | Compound colony |
| C. | Both (a) and (b) |
| D. | None of these |
| Answer» D. None of these | |
| 9445. |
Blue-green algae are included in [CPMT 1982; CBSE PMT 1996; MP PMT 2004] |
| A. | Eukaryotes |
| B. | Rhodophyceae |
| C. | Prokaryotes |
| D. | Chlorophyceae |
| Answer» D. Chlorophyceae | |
| 9446. |
The blue-green algae are so called as they have in addition to green pigment chlorophyll, a blue pigment known as [KCET 1994; MP PMT 1996; Kerala PMT 2003] |
| A. | Phycocyanin |
| B. | Chromoplasm |
| C. | Cyanophycin |
| D. | Phycoerythrin |
| Answer» B. Chromoplasm | |
| 9447. |
Which was first photosynthetic organism [DPMT 2003] |
| A. | Green algae |
| B. | Red algae |
| C. | Cyanobacteria |
| D. | Brown algae |
| Answer» D. Brown algae | |
| 9448. |
Which of the following is a Prokaryote [MP PMT 2002] |
| A. | Chlorella |
| B. | Chlamydomonas |
| C. | Protomyces |
| D. | Oscillatoria |
| Answer» E. | |
| 9449. |
Which is not a cyanobacterium [AFMC 2002] |
| A. | Lyngbya |
| B. | Plectonema |
| C. | Anabaena |
| D. | Sinorhizobium |
| Answer» E. | |
| 9450. |
The characteristic of blue green algae is [RPMT 2002] |
| A. | DNA without histone |
| B. | Nuclear membrane absent |
| C. | 70 S ribosomes |
| D. | All of the above |
| Answer» E. | |