MCQ in Botany (Life Sciences) Answer to Part III

Answer for the mcq in Botany part III 1. In fungi the reserve food invariably accumulated in the form of: (a) Protein and steroid (b) Sugar and oil (c) Protein and starch (d) Glycogen and oil drops 2. The part of cotton producing pure cellulose is: (a) Root hair (b) …

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Answer for the mcq in Botany part III

1. In fungi the reserve food invariably accumulated in the form of:
(a) Protein and steroid
(b) Sugar and oil
(c) Protein and starch
(d) Glycogen and oil drops

2. The part of cotton producing pure cellulose is:
(a) Root hair
(b) Leaf hair
(c) Seed hair
(d) Stem hair

3. Which of the following is considered to be the best chemical method of fixing atmospheric nitrogen?
(a) Fisher method
(b) Decan method
(c) Haber-Bosch method
(d) Paranas-Meyerhoff method

4. Desired improved varieties of economically useful crops are raised by:
(a) Migration
(b) Biofertilizer
(c) Hybridization
(d) Natural selection

5. Indian rose wood tree is a common name of:
(a) Acacia
(b) Shorea
(c) Dalbergia
(d) Eucalyptus

6. Emasculation is concerned with:
(a) Hybridization
(b) Clonal selection
(c) Mass selection
(d) Pure line selection

7. Which of the following insecticide is obtained from the roots of Derris elleptica?
(a) Cinerin
(b) Nicotine
(c) Rotenone
(d) Pyrethrum

8. Population density is the:
(a) Number of species per community
(b) Number of communities per ecosystem
(c) Number of individuals per species
(d) Number of individuals per species per unit area or volume

9. The transitional zone where two different communities meet, is called
(a) Ecad
(b) Ecotone
(c) Ecotype
(d) Ecophene

10. Mescaline, an alkaloid is found in:
(a) Laphphora williamsii
(b) Claviceps purpurea
(c) Psilocybe mexicana
(d) Piptademia peregrina
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11. “AA” stands for
(a) Abnormal Action
(b) Anomalous Behaviour
(c) Alcoholics Anonymous
(d) Alcoholics Action

12. Vagina (hypopodium = leaf base) is pulvinus in:
(a) Grasses
(b) All legumes
(c) Some legumes
(d) Legumes and grasses

13. The florets in capitulum of sunflower are arranged in a manner:
(a) Centrifugal
(b) Centripetal
(c) Acropetal
(d) Basipetal

14. Which of the following statements is correct?
(a) Xylem is made of all living cells
(b) Xylem is made of living and non living cells
(c) Xylem is made of non-living cells
(d) Xylem does not contain cells

15. Which cells decay faster, if exposed freely to the air?
(a) Heart wood
(b) Sap wood
(c) Wood rich in fibres
(d) Softwood

16. Parthenogamy represents the:
(a) Union of two vegetative nuclei
(b) Union of two parent hyphae
(c) Union of two gametes of one sex
(d) Union of three gametes

17. To obtain naked protoplasts during somatic hybridization the enzymes needed are:
(a) Cellulase and protease
(b) Cellulase and amylase
(c) Cellulase and pectinase
(d) Cellulase and lipase

18. The entry of water into root hairs is due to the force:
(a) Atmospheric pressure
(b) Osmotic pressure
(c) Turgor pressure
(d) Suction pressure

19. Reduced availability of nitrogen during late growth causes:
(a) Increase in the carbohydrate content of fruits and storage organs
(b) Decrease in the carbohydrate content of fruits and storage organs
(c) Increase in the ethylene content of fruits and storage organs
(d) Decrease in the ethylene content of fruits and storage organs

20. Law of limiting factors is concerned with:
(a) Internal factors affecting transpiration
(b) External factors affecting photosynthesis
(c) External factors affecting growth
(d) Internal factors affecting respiration

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2 Comments.[ Leave a comment ]

  1. NICE INFORMATION

  2. durga prasana dash

    that’s to better but it have to contain more questions and some mora data and links have to be included with it.

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