Sample Questions- PART 7

Q) Compared to smaller organisms, larger organism generally have
1. Larger cells
2. Smaller cells
3. More number of cells
4. Both 1 and 2
5. Both 2 and 3

Q) In a cell the most efficient import/export is possible when there is a
1. High volume
2. High surface area
3. High volume to surface area
4. High surface area to volume
5. None of the above

Q) What is common in all the epithelial cells
1. They are polarized
2. They are multifunctional
3. They do not have nucleus
4. They have multi layers
5. None of the above

Q) Which is found in middle lamella of plants
1. Cellulose
2. Liginin
3. Chitin
4. Sucrose
5. None of the above

Q) Suberin is found in
1. Leaves
2. Shoot apex
3. Casparian strip
4. Xylem
5. Phloem

Q) Tracheids and vessels only have
1. Symplast pathway
2. Trasmembrane pathway
3. Apoplast pathway
4. Active trasport
5. None of the above

Q) Excessive traspiration in plants occurs when
1. Stomata is closed
2. Stomata is closed and k+ concentration is more in guard cells
3. Stomata is open and H+ concentration is more in guard cells
4. H+ concentration is less in guard cells
5. None of the above

Q) Translocation is
1. Under positive pressure
2. Negative pressure
3. From sink to source
4. Both 1 and 3
5. Both 2 and 3

Q) Homeostasis in animals is said to be in
1. Static equillibrium
2. Dynamic equillibrium
3. Drives some reactions to completion
4. Never in equillibrium
5. None of the above

Q) poikilotherms can be considerd as
1. Ectotherms
2. Endotherms
3. Homeotherms
4.None of the above
5. Warm blooded animals

JNU Sample Questions- PART 5

Q) The plants are thought to be evolved from
1. Charophyte
2. Bryophyte
3. Lymnophyte
4. Pterophyte
5. None of the above

Q) The dominant stage in the life cycle of Bryophyte is
1. Sporophyte
2. Gamatophyte
3. Both
4. Partial gamatophyte
5. None of the above

Q) Pterophyte contains
1. Seedless plants
2. Non-vasular plants
3. Vascular seed plants
4. Eudicot plants
5. None of the above

Q) Which of the following is a dead cell at maturity
1. Guard cells
2. Sieve elements
3 .Tracheids
4. Meristems
5. Both 2 and 4

Q) Inside the ovary the egg is guarded by
1. Egg shell
2. Synergids
3. Micropyle
4. Cotyledons
5. None of the above

Q) Eudicots are
1. True monocots
2. True dicots
3. Neither monocot nor dicot
4. True dicots
5. Ancestor of monocots

Q) Onion can be considered as
1. Modifies root
2. Modified stem
3. Modified leaves
4. Normal stem
5. None of the above

Q) Stolons can be seen in
1. Strawberry
2. Gymnosperms
3. Apples
4. Sunflower
5. All of the above

Q) Pneumatophores can be seen in
1. Woody trees
2. Mangrooves
3. Evergreen trees
4. DIcots
5. All the above

Q) The sperm nuclei fuses with
1. Egg and synergids
2. Egg only
3. Egg and central nuclei
4. Central nuclei only
5. None of the above

Q) After fertilization the ovule developes in to
1. Fruite
2. Endosperm
3. Flower
4. Seed
5. Root cap

Q) The gynoecium is a collective name for
1. Anthers
2. Stames
3. Pistils
4. Carpels
5. None of the above

Q) The ploidy level of endosperm is
1. 1n
2. 2n
3. 3n
4. 4n
5. None of the above

Q) Monocots have
1. Orderd vascular tissues
2. One - pored pollen
3. Net like veins
4. Free swinmming sperms
5. All of the above