class - 11
subject - Biology
Time - 90 min MM - 40
section -A 10X1
1. Name the international authority who give scientific name to plants?
2. Who gave the binomial name of classification?
3. The scientific term for convenient categories we use to study organisms is..............................
4. Penicellium is unicellular fungi. (true/false)
5. Organism with eukaryotic cell, heterotrophic in nature (obligate parasite), hyphae with aseptate and coenocytic condition is-
a) diatoms b) albugo c) aspergillus d) agaricus
6. Organisms living in salty areas are called as
(a) Methanogens (b) Halophiles (c) Heliophytes (d) Thermoacidophiles
7. Which covers largest number of organisms - a) phylum b) genus c) order d) species
8. Rearrange the following categories of classification in their proper sequence starting with the highest.
Species, family, genus, class, order, phylum.
9. All living organisms are linked to one another because of a) They have the common genetic material of the same type b) They share common genetic material but to varying degrees c) All have a common cellular organisation d) All of the above.
10. As we go from species to Kingdom in a taxonomic hierarchy, the number of common characteristics................................ a) Will decrease b) Will increase c) Remain the same d) increase or decrease
section - B 5X2
1. Why are cyanobacteria used in agricultural fields for crop improvement?
2. What are imperfect fungi?
3. What is dikaryon? give an example.
4. what is the nature of cell walls in diatoms?
5. What do you understand by following terms with example
a) Phylum b) Class
section - C 4X3
1. under microscope and you observe the following features: Unicellular, Well defined nucleus, Biflagellate—one flagellum lying longitudinally and the other transversely. What would you identify it as and why? Can you name the kingdom it belongs to?
2. Find out what do the terms ‘algal bloom’ and ‘red tides’ signify.
3. Define lichens. What do the terms phycobiont and mycobiont signify?
4. Illustrate the taxonomical hierarchy with suitable examples of a plant and an animal.
section - D 2X4
1. What are the universal rules of nomenclature?
2. Describe briefly the four major groups of protozoa.
कोई टिप्पणी नहीं:
एक टिप्पणी भेजें