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Thursday, May 14, 2009

17 Assorted questions on Protista.

It is a well noted trend that a lot of questions appearing for competitive medical exams are heavily imbibed from very old NCERT textbooks as well as out-of-syllabus. This series of questions are prepared keeping in mind the extra portions and one-words that frequently come up for the A.I.P.M.T. Prelims, Kerala P.M.T., J.I.P.M.E.R. and also for the A.I.I.M.S. Examinations. I hope this helps you to get some additional useful information.

Self evaluation M.C.Q. Examination:
One question carries 4 marks if correct. If wrong the examinee is awarded -1 marks. There will be no marks for unattempted questions.

Maximum Marks:68
Pass Marks :34
Total time :17 minutes

1. Protista is the connecting link between which groups?
a. Monera and Fungi
b. Monera and Animals
c. Monera and plants
d. Monera and virus

Ans: b

2. Which group is known as 'Jewels of Plant Kingdom'?
a. Chrysophytes
b. Fungi
c. Protists
d. Euglenoids

Ans: a

3. Which group has got lipids capable of storing light?
a. Protists
b. Sporozoans
c. Euglenoids
d. Diatoms

Ans: d

4. Which among the following indicates pertroleum presence?
a. dinoflagellates
b. Chrysophytes
c. Slime moulds
d. Protozoans

Ans: b

5. 'Whorling whips' are the nickname of which group?
a. Euglenoids
b. diatoms
c. Red algae
d. dinoflagellates

Ans: d

6. Which is the only colourless animal-parasite among dinoflagellates?
a. Notiluca
b. Ceraium
c. Gonyaulux
d. Blastodium

Ans: d

7. Which is known as 'Fire algae' due to the phosphoresence activity?
a. Notiluca
b. Gonyaulux
c. Plasmodium
d. Blastodium

Ans: a

8. The only dinoflagellate which shows sexual reproduction?
a. Notiluca
b. Nematodium
c. Ceratium
d. Blastodium

Ans: c

9. Pellicle is present in _______ andis made of ________.
a. Diatoms, sugars
b. Diatoms, proteins
c. Euglenoids, sugars
d. Euglenoids, proteins

Ans: c

10. The red pigment that represents the eyespot in Euglenoids is made of________
a. Astaxanthin
b. Protoxanthin
c. Xanthophyll
d. Chorophyll

Ans: a

11. Euglna stores carbohydrates in the form of______________?
a. Amylopectin
b. Paramylum bodies
c. Paramylon
d. both (b) and (c)

Ans:d

12. 'Palmella stage' is present in which of the following?
a. Algae
b. Euglena
c. All of the above
d. None of the above

Ans: c

13. Which group is known as the 'consumer-decomposer' protists?
a. Slime moulds
b. Euglenoids
c. Amoeboids
d. Sporozoans

Ans: a

14. The plasmodium of a slime mould secretes_______
a. lime
b. tanin
c. resin
d. silica

Ans: a

15. Macrocyst formation represents:
a. Asexual reproduction
b. Sexual reproduction
c. Vegetative reproduction
d. None of the above

Ans: b

16. Acellular Slime moulds mulitply by a method known as_______:
a. Plasmotomy
b. Binary fission
c. Spore formation
d. Non of the above

Ans: a

17. Cellular Slime moulds reproduce by________.
a. Plasmotomy
b. Binary fission
c. Spore formation
d. Non of the above

Ans: b

20 Assorted questions on Viruses

It is a well noted trend that a lot of questions appearing for competitive medical exams are heavily imbibed from very old NCERT textbooks as well as out-of-syllabus. This series of questions are prepared keeping in mind the extra portions and one-words that frequently come up for the A.I.P.M.T. Prelims, Kerala P.M.T., J.I.P.M.E.R. and also for the A.I.I.M.S. Examinations. I hope this helps you to get some additional useful information.

Self evaluation M.C.Q. Examination:
One question carries 4 marks if correct. If wrong the examinee is awarded -1 marks. There will be no marks for unattempted questions.

Maximum Marks:80
Pass Marks :40
Total time :20 minutes

1. The term virus in latin means?
a. poison
b. venom
c. toxin
d. only (a) and (b)

Ans: d

2. What are viruses?
a. nucleoproteins
b. lipoproteins
c. macroproteins
d. globular nucleolipids

Ans:a

3. What are virions?
a. complete virus
b. incomplete virus
c. virus capable of sexual reproduction
d. virus that are lytic in nature

Ans: a

4. Which is a brick shaped virus particle?
a. TMV
b. Influenza
c. coliphage
d. bacteriophage

Ans: b

5. the protein covering in virus is known as?
a. capsomere
b. capsid
c. peplomere
d. peplid

Ans: b

6. Which of the folowing has double stranded DNA?
a. Adenovorus
b. Cauliflower M.V.
c. Simian virus
d. all the above

Ans: d

7. Φx174 has which type of genetic material?
a. ss-RNA
b. ss-DNA
c. ds-RNA
d. ds-DNA

Ans: b

8. Which among the following is the character of retrovirus?
a. positively stranded ds-DNA
b. positively stranded ss-RNA
c. negatively stranded ds-DNA
d. negatively stranded ss-DNA

Ans: b

9. Which among the following has a helical symmetry?
a. Turnip Mosaic Virus
b. Potato Mosaic Virus
c. Tobacco Mosaic virus
d. Bacteriophage

Ans: c

10. Which among the following are Biosymmetrical(mixed symmetry)?
a. Turnip Mosaic Virus
b. Reo Virus
c. Tobacco Mosaic virus
d. Bacteriophage

Ans: d

11. Which virus causes Measles?
a. Varicella
b. Variola
c. Lassa
d. Rubeola

Ans: d

12. Which virus causes Chicken-pox?
a. Varicella
b. Rubeola
c. Lassa
d. simian virus

Ans: a

13. Which virus causes Small pox?
a. Varicella
b. Variola
c. Reo Virus
d. Rubeola

Ans: b

14. Which virus is known as Rabies virus?
a. Varicella
b. λ-phage
c. Lassa
d. Rubeola

Ans: d

15. λ-phage has which of the following cycles?
a. Lytic
b. Lysogenic
c. Pinoctic
d. none of the above

Ans: b

16. T-4 Bacteriophage has which of the following cycles?
a. Pinoctic
b. Lytic
c. Lysogenic
d. none of the above

Ans: b

17. Who gave the expression:"Contagium vivum fluidum" to describe a virus?
a. Stanley
b. Pruissner
c. Beijerneick
d. Morris

Ans: c

18. Who discovered interferons?
a. Safferman
b. Morris
c. Issacs and Lindeman
d. Hershey and Chase

Ans:c

19. Who are usually credited with the discovery of AIDS virus?
a. Montagnier and Gallo
b. Gallo and Stanley
c. Pruissner and Lindeman
d. Morris and Gallo

Ans: a

20. What were the contribution of Safferman and Morris in the field of virology?
a. They discovered λ-phages
b. They discovered cyanophages
c. They showed that the infective part is the genetic material.
d. They found out the Lytic cycle of virus reproduction.

Ans: b

20 Assorted questions on Plant Morphology: Leaf Modifications.

20 Assorted questions on Plant Morphology: Leaf Modifications.

It is a well noted trend that a lot of questions appearing for competitive medical exams are heavily imbibed from very old NCERT textbooks as well as out-of-syllabus. This series of questions are prepared keeping in mind the extra portions and one-words that frequently come up for the A.I.P.M.T. Mains and for A.I.I.M.S. Examinations. I hope this helps you to get some additional useful information.

One Word type:

1.In which plant is the Stipule modified into spine?
A.Ziziphus

2.In which plant is the Leaf Margins modified into spine?
A.Argemone

3.In which plant is the Leaf Apex modified into spine?
A.Yucca

4.In which plant is the entire Leaf modified into spine?
A.Barberis

5.In which plant is the Stipule modified into tendril?
A.Smilax

6.In which plant is the Leaf Margins modified into tendril?
A.Clematis

7.In which plant is the Leaf Apex modified into tendril?
A.Gloriosa

8.In which plant is the Leaflets modified into tendril?
A.Piscum

9.In which plant is the entire Leaf modified into tendril?
A.Lathyrus.

10.Name a plant with leaf hooks?
A. Bigonia
*used for climbing purposes.

11.Name a plant with scale/ protective leaves?
A.Ficus
*also Atropocarpus

12.Name a plant with leaf roots?
A.Salvinia
*the root is modified for balancing in water.

13.Name a plant with leaf pitchers?
A.Nepenthes(Insectivorous)
*Also Discheidia(Non-nisectivorous)

14.Name a plant with leaf bladders?
A. Utricularia.

15.Name a plant with leaf tentacles?
A.Drosera

16.A petiole when modified into leaf like structure is called________?
A.Phyllode

17.Name a plant with phyllode?
A.Parkinsonia
*Also Acacia auriculiformis.

18.Which plant has leaves with winged leaves?
A.Citrus, Feronia

19.A plant whose leaves have tendrillar petiole?
A.Clematis, Nepenthes

20.A plant with bulbous or floating petiolar leaves?
A.Eichhornia, Trapa

Tuesday, May 12, 2009

20 Assorted questions on Plant Morphology: Fruits.

20 Assorted questions on Plant Morphology: Fruits.

It is a well noted trend that a lot of questions appearing for competitive medical exams are heavily drawn from very old NCERT textbooks as well as out-of-syllabus. This series of questions are prepared keeping in mind the extra portions and one-words that frequently come up for the A.I.P.M.T. Mains and for A.I.I.M.S. Examinations. I hope this helps you to get some additional useful information.

One Word Type Questions:
1.Study of fruits is knowm as?
A.Pomology

2.What is the name given for a seedless fruit?
A.Parthenocarpic fruits.

3.The fruit developing from a multicarpellary apocarpous fruit is known as________?
A.Aggregate fruit.

4.When a gruit develops from the entire inflorescence, it is called?
A.Composite fruit.

5.Which type of fruits are called grains?
A. Caryopsis.

6.Which fruit develops from a monocarpellary superior ovary?
A. Achene

7.What are the types of composite fruits?
A.Sorosis, Synconus.

8.What is the name given to a fruit developing from a bicarpellary, falsely two-chambered, superior pistil?
A. Siliqua

9.What is the name given to a short and broad siliqua?
A.Silicula.

10.Which type of fruits are found in legumes?
A.Legume or Pod.

11. Which type of fruits are found in citrus fruits?
A. Hesperidium

12.Cucmber, water melon, etc., falls under the fruit category of________
A.pepo

13.Which is the edible part of Litchi?
A.Aril

14.Which is the edible part in jackfruit?
A.Bracts, perianth, seeds.(Seeds are cooked and eaten.)

15.Which is the edible part in Citrus?
A.Placental hairs of the Hesperidium.

16.Name a parthenocarpic berry?
A. Banana(Musa paradisica)

17.Which is the edible portion of pineapple?
A. Outer part of receptacle.

18.Sorosis develops from the infloresence _________
A. Spadix.

19. Synconus develops from the infloresence__________
A.Hypanthodium.

20.The many-seeded fruit with a woody pericarp is?
A. Amphisacra.

If you need more help:
http://www.indiastudychannel.com/resources/60675-Assorted-questions-Plant-Morphology-Leaf.aspx
http://www.indiastudychannel.com/resources/60670-Assorted-questions-Biomolecules-Lipids.aspx

http://www.indiastudychannel.com/resources/60674-Assorted-questions-Viruses.aspx

http://www.indiastudychannel.com/resources/60671-Assorted-questions-Plant-Morphology-Fruits.aspx

http://www.indiastudychannel.com/resources/60669-Assorted-questions-Bio-molecules.aspx

http://www.indiastudychannel.com/resources/60668-Assorted-questions-Muscular-System.aspx

20 Assorted questions on Biomolecules: Lipids.

It is a well noted trend that a lot of questions appearing for competitive medical exams are heavily drawn from very old NCERT textbooks as well as out-of-syllabus. This series of questions are prepared keeping in mind the extra portions and one-words that frequently come up for the A.I.P.M.T. Mains and for A.I.I.M.S. Examinations. I hope this helps you to get some additional useful information.

One Word Type Questions:

1.Who coined the term 'lipids'?
A.Bloor

2.Name the lipids which have a terminal -COOH group?
A.Fatty Acid.

3.How much cell content is shared by the lipids?
A.35%

4.Name the simplest fatty acid?
A.Acetic acid

5.Expand M.U.F.A.?
A.Mono Unsaturated Fatty Acid.
*It is a fatty acid which has only one double bond.

6.Give examples of M.U.F.A.?
A. Oleic Acid and Palmitic acid

7.Expand P.U.F.A.?
A.Poly Unsaturated Fatty Acid.
*It has more than one double bonds present in it.

8.Give Examples for P.U.F.A.?
A.Linolenic acid(2 double bonds), Linoeic acid(3 Double bonds) and Arachidonic acid(4 double bonds.)
*Don't confuse between Linolenic and Linoleic acids.

9.Which is the maximum number of double bonds present in essential fatty acids?
A.Four.(In arachidonic acid; it is an essential fatty acid)

10.Which acids act as a precursor for prostaglandeins?
A.Essential fatty acids, usually Arachidonic acid.

11.Give examples for pure fat?
A. Tripalmitin and Tristearin

12.Give an example for mixed fat?
A. Palmito-oleio-stearin.
*It is composed of Palmitic, Stearic and Oleic acids.

13.Which is the richest source of P.U.F.A.?
A.Vegetable oils

14.Which vegetble oil has the least content of fatty acid?
A.Coconut oil.

15.Which wax is present in the human blood?
A.Cholesterol palmitate.

16.What is the other name for Lanolin?
A.Wool fat.

17.Which fatty acid derivative is found in brain?
A.Cephalin
*Acts as an insulation for the nerves.

18.Lipids constructed from five carbon compound isoprene is called-----?
A.Terpenes.

19.Name three sterols?
A.Cholesterol, Ergosterol, Diosgenin.

*Cholesterol is the most important animal sterol and is prepared by the body itself.
*Ergosterol acts as the precursor of Vitamin-D, mainly found in yeast.
*Diosgenin is obtained from yam plant(Dioscorea) used in preparing anti-fertility drugs.

20.What is the precursor of Cholesterol?
A. Actyl Co-A or acetate.(2 carbon compound)

If you need more help:
http://www.indiastudychannel.com/resources/60675-Assorted-questions-Plant-Morphology-Leaf.aspx
http://www.indiastudychannel.com/resources/60670-Assorted-questions-Biomolecules-Lipids.aspx
http://www.indiastudychannel.com/resources/60674-Assorted-questions-Viruses.aspx
http://www.indiastudychannel.com/resources/60671-Assorted-questions-Plant-Morphology-Fruits.aspx
http://www.indiastudychannel.com/resources/60669-Assorted-questions-Bio-molecules.aspx

http://www.indiastudychannel.com/resources/60668-Assorted-questions-Muscular-System.aspx

20 Assorted questions on Biomolecules: Carbohydrates.

20 Assorted questions on Biomolecules: Carbohydrates.

It is a well noted trend that a lot of questions appearing for competitive medical exams are heavily drawn from very old NCERT textbooks as well as out-of-syllabus. This series of questions are prepared keeping in mind the extra portions and one-words that frequently come up for the A.I.P.M.T. Mains and for A.I.I.M.S. Examinations. I hope this helps you to get some additional useful information.

One Word Type Questions:

1.Name two trioses
A.Glyceraldehyde and dihydroxyacetone

2.Name a tetrose
A.Erythrose

3.What is the function of erythorose?
A. It forms a raw material for synthesis of anthocyanin and lignin.

4.What is the other name of fructose?
A.Fruit sugar / Levulose

5.Which sugar is the reserve food of brown algae?
A.Mannitol.(Itr is an alcohol of the sugar mannose)

6.Glucose is categorized as a monosaccharide. How would you classify cellobiose*?
A.disaccharide.
*Cellobiose is a disaccharide of Beta-D-Glucose and cannot be digeted by the human gut.

7.Which sugar is found in the germinating starchy seeds?
A.Maltose.

8.Maltose is prepared from starch by hydrolyzing it with the enzyme-----
A.Diastase.

9.Which mammal among the following has highest lactose content in milk?- Cow, goat, buffalo, human
A.Human

10.Name a trisaccharide.
A.Raffinose.
*It is made of Galactose+Glucose+Fructose

11.In which form is food passed through phloem of plants?
A.Sucrose.

12.What is the food storage polysaccharide in plants?
A.Starch.

13.What is known as 'animal starch'?
A.Glycogen.

14.In which plant is the amount of cellulose the maximum?
A.Cotton.

15.Which compuond derived from polysaccharides prevent the coagulation of blood in vessels?
A.Heparin.

16Name the monomer of chitin?
A.N-Acetyl glucosamine

17.Name a homopolymer of fructose?
A.Inulin*
*Mostly 25-50 units.Donot confuse with 'insulin'- it is a hormonal protein.

18.The infant brain requires a lot of ----- as a metabolic substrate/
A.Glucose.

19.What are the two fractions of starch?
A.Amylose and Amylopectin.

20.Name two structural Poly saccharides?
A. Chitin and Cellulose.

If you need more help:
http://www.indiastudychannel.com/resources/60675-Assorted-questions-Plant-Morphology-Leaf.aspx
http://www.indiastudychannel.com/resources/60670-Assorted-questions-Biomolecules-Lipids.aspx
http://www.indiastudychannel.com/resources/60674-Assorted-questions-Viruses.aspx
http://www.indiastudychannel.com/resources/60671-Assorted-questions-Plant-Morphology-Fruits.aspx
http://www.indiastudychannel.com/resources/60669-Assorted-questions-Bio-molecules.aspx

http://www.indiastudychannel.com/resources/60668-Assorted-questions-Muscular-System.aspx

15 Assorted questions on Muscular System.

It is a well noted trend that a lot of questions appearing for competitive medical exams are heavily drawn from very old NCERT textbooks as well as out-of-syllabus. This series of questions are prepared keeping in mind the extra portions and one-words that frequently come up for the A.I.P.M.T. Mains and for A.I.I.M.S. Examinations. I hope this helps you to get some additional useful information.

One Word Type Questions:

1.study of structuring, components and functioning of muscular tissues?
A.Myology/ sarcology

2.How many muscles are present in the human body?
A.640

3.Which is the Boxer's muscle?
A.Serratus interior.

4.Which is the Largest muscle?
A.Gluteus maximus

5.Which is the Strongest muscle?
A.Massetor of jaws.

6.Which is the Longest muscle?
A.Sartorius or Quadriceps femoris (Tailor's Muscle)

7.Which is the Area between two Z-lines?
A.Sarcomere.

8.What is Hensen's line?
A. M-line

9.Who proposed the Sliding filament theory?
A. A.F.Huxley and H.E. Huxley

10.During muscle contraction which band remains unchanged?
A. A-band

11.Which muscles do you find more in sprinter's legs?
A. White muscle tissue.

12.Which muscles perform slow yet steady work and doesn't get fatigued easily.
A. Red Muscle Tissue

13.Calcified fibres which hold periosteal bone lamellae?
A. Sharpey's fibres.

14.The passage of lactic acid from muscle to liver takes place in which cycle?
A. Cori's cycle.

15.Stiffening after the death of an individual is known as?
A.Rigor mortis.

All these questions could be found in indiastudychannel- I have posted this in that website too. If you want more practice questions, Use the following links:
http://www.indiastudychannel.com/resources/60675-Assorted-questions-Plant-Morphology-Leaf.aspx
http://www.indiastudychannel.com/resources/60670-Assorted-questions-Biomolecules-Lipids.aspx
http://www.indiastudychannel.com/resources/60674-Assorted-questions-Viruses.aspx
http://www.indiastudychannel.com/resources/60671-Assorted-questions-Plant-Morphology-Fruits.aspx
http://www.indiastudychannel.com/resources/60669-Assorted-questions-Bio-molecules.aspx
http://www.indiastudychannel.com/resources/60668-Assorted-questions-Muscular-System.aspx

I hope this was very helpful