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16051.

Question : It can be considered as an important event for evolution. (A) Crossing over (B) Cytokinesis (C) Interphase (D) Synapsis

Answer»

CROSSING over
CYTOKINESIS
INTERPHASE
SYNAPSIS

ANSWER :A
16052.

Question : Isolation species can also be called as ………………species .

Answer»

BIOLOGICAL
Taxonomical
PHYLOGENETIC
MORPHOLOGICAL

SOLUTION :Biological
16053.

Question : Isolate in appropriate manner for secondary metabolites.a.Plantb.Fungic.Bacteriad.Above all

Answer»

Plant
Fungi
Bacteria
Above all

Answer :D
16054.

Question : Isogamy is a mode of sexual reproduction in which

Answer»

The fusing gametes are morphologically and functionally SIMILAR
One of the TWO fusing gametes is comparatively smaller
The gametes are similar in STRUCTURE and size but DIFFERENT in behaviour
The fusing gametes are dissimilar in all respects

Answer :A
16055.

Question : Isogamous condition with non-flagellated gametes is found in:

Answer»

CHLAMYDOMONAS
SPIROGYRA
Volvox
Fucus

Answer :B
16056.

Question : Islets of Langerhans produce

Answer»

Insulin
Rennin
Ptyalin
HCl

Solution :(a) Insulin is PRODUCED by `BETA`- CELLS of ISLETS of Langerhans.
16057.

Question : Isobilateral leaf is seen in ……………………

Answer»

ONION
pine
tridax
GRASS

SOLUTION :grass
16058.

Question : Isinglass is used in

Answer»

Preparation
CLEARING of WINES
DISTILLATION of wines
PRESERVATION of wines

SOLUTION :Clearing of wines
16059.

Question : Ischemic pain in the heart muscles is called ..................

Answer»

SOLUTION :ANGINA pectoris.
16060.

Question : Is water potential measurable? How is it represented and measured?

Answer»

Solution :Water potential is MEASURABLE. It is represented by Greek letter `Psi` (Psi) and measured in BARS.
16061.

Question : Is viviparous pair(A) Betta, clarias(B) Saw fish, sting ray(C) Dog fish, flying fish(D) Rohu, cattla

Answer»

BETTA, clarias
Saw FISH, sting ray
Dog fish, flying fish
Rohu, cattla 

Answer :B
16062.

Question : …………..is used for the synthesis of anthocyanin.

Answer»

RIBULOSE
ERYTHROSE
Sedoheptulose
Xylulose

ANSWER :B
16063.

Question : ……………is used in single cell protein.

Answer»

SPIRULINA
Azolla
Dermacarpa
NOSTOC

ANSWER :A
16064.

Question : __________is used for alcoholic fermentation of sugars.

Answer»

SOLUTION :SACCHAROMYCES
16065.

Question : Is there link between water absorption and respiration ? Explain.

Answer»

SOLUTION :There is a LINK between water ABSORPTION and REPIRATION. It is EVIDENT from the fact that when respiratory. It is evident from the fact that when respiratory inhibitors like KCN, Chloroform are applied there is a decrease in the rate of respiration and also the rate of absorption of water.
16066.

Question : Is tomato a fruit of vegetable? Explain.

Answer»

Solution :Yes, TOMATO is a fruit. Because it develops from the ripened ovary and bears seeds, whereas VEGETABLE refers to all other plant PARTS like ROOT, stem and leaves.
16067.

Question : _______is theliving content of the cell.

Answer»

Cytoplasm
PROTOPLASM
Nucleoplasm
Nucleus

Solution :Protoplasm
16068.

Question : The volume of air remaining in the lungs after a forceful expiration is ………

Answer»

SOLUTION :TOTAL LUNG CAPACITY
16069.

Question : ...................................is the number of stomata per square mm. Of leaf suface.

Answer»

SOLUTION :Stomatal FREQUENCY
16070.

Question : _____is the name for intestine juice while is the juice secreted by liver

Answer»

SOLUTION :SUCCUS entricus, BILE JUICE
16071.

Question : Which is the longest phase of meitoic division?

Answer»

Anaphase
Telophase
PROPHASE
Interphase

Solution :Prophase
16072.

Question : ……...is the hormone secreted by kidneys to stimulate bone marrow to produce more RBCs.

Answer»

SOLUTION :ERYTHROPOIETIN
16073.

Question : The first product of C_3 pathway is

Answer»

DHAP
PGA
Succinic acid
fumaric acid

Solution :PGA
16074.

Question : .......................................is the exudation of water drops from the tip or margins of lamina at the vein ends.

Answer»

SOLUTION :GUTTATION
16075.

Question : Is the enzymes of glyoxylate pathway present in glyoxysomes ?

Answer»

Solution :1. Glyoxysome is a single membrane bound organelle.
2. It is a sub cellular organelle and contains ENZYMES of glyoxylate pathway.
3. `beta`-OXIDATION of FATTY acid occurs in glyoxysomes of germinating seeds Eg: Castor seeds.
16076.

Question : Is the dominant cerebral hemisphere in most individuals

Answer»


ANSWER :T
16077.

Question : Is the cell wall permeable, semipermeable or impremeable ?

Answer»

SOLUTION :PERMEABLE.
16078.

Question : Which of the following is not involved in gaseous exchange?

Answer»

SOLUTION :DEAD SPACE
16079.

Question : _____is the abundant protein in whole biosphere.

Answer»

RUBP
`NAD^(+)`
`NADPH`
RUBISCO

Solution :RUBISCO
16080.

Question : Is rubber a primary metabolite or a secondary metabolite ? Write four sentences about rubber.

Answer»

Solution :Rubber is secondary metabolite, secondary metabolites means chemicals synthesized by plants which has no role in growth.
-Rubber is OBTAINED from rubber tree (Havea bracilianaces)
- It is byproduct of the lactiferous tissue which is latex type of TUBULES.
It is the BIGGEST terpenoids it has 400 isoprene units.
-It is elastic, insoluble in water and a GOOD CONDUCTOR of electricity.
16081.

Question : Is Rhizopus homothallic or heterothallic ?

Answer»

SOLUTION :Heterothallic
16082.

Question : ___________ is responsible for yllow colour change of leaves during autumn season.

Answer»

CUTIN
LUTEIN
PHYCOBILIN
Carotein

Answer :B
16083.

Question : Is Pinus an evergreen tree ? Comment.

Answer»

Solution :Evergreen means the plants which have leaves for all four season and opposite to that deciduous trees lose/shed their leaves in either winter or DRY season. Pinus of gymnosperms is an evergreen tree. Flowering plants lose/ shed their leaves in very cold atmosphere and become dormant.
But in pinus due to its thick bark, needle like leaves and sunken stomata the rate of transpiration is REDUCED. Due to cold regions, less rain fall physiologically and PHYSICALLY, snow fall, cold temperature, open house, absorption by roots is decreased.
But pinus is well adapted in this condition. It continues to make food during this season also and develops dominantly on other plants. It shows that pinus is an evergreen plant. It does not shed leaves so NEEDLES are available in any condition.
16084.

Question : Is photosynthesis only process of ATP (chemical energy) formation? Explain.

Answer»

Solution :No, photosynthesis is not only the PROCESS for ATP (chemicalenergy) formation. Besides photosynthesis, during respiration in ETS CYCLE ADP is converted to ATP. The ESSENTIAL energy required is taken by the oxidation of organic food.
16085.

Question : Sucrose is a non reducing sugar. Justify.

Answer»

Glucose
Fructose
SUCROSE
Ketose

Solution :Sucrose
16086.

Question : ____________is hammer shaped while ___________is stirrup like bone in middle ear.

Answer»


ANSWER :MALLEUS ; STAPES
16087.

Question : Isit correct to say that photosynthesis occurs only is leaves of a plant? Besides leaves, what are the other parts that may becapable of carrying outphotosynthesis ? Justify.

Answer»

Solution :Photosynthesis by root

When root possesses chloroplasts and perform photosynthesis then it is called assimilatory roots eg. Photosyntheti root.
Photosynthesis by stem :

In cactu, stem acts LIKE a leaf. Its stem is GREEN coloured, flat thick ND fleshy. That performs photosynthesis. It is called as phylloclade.
Photosynthesis by petiole :

In AUSTRALIAN Baval leaflets fall very quickly so petiole BECOMES green, flat leaflike and performs photosynthesis. It is called cladode.
16088.

Question : Is it correct to say that photosynthesis occurs only in leave of a plant ? Besides leaves, what are the other parts that may be capable of carrying out photosynthesis ? Justify.

Answer»

Solution :PHOTOSYNTHESIS is a process which mainly occurs in leaves of all graeen plants. The plants have designed their leaf in such a way that it is able to trap solar radiation and effectively convert solar/light energy to chemical energy.
But biology is science of exceptions. Some plants carry US photosynthesis in modified plant parts other then leaves.
For examples are as follows
1. Root as Photosynthetic Organ

When roots develop chlorophyll and START photosynthesis, they are called assimilitory roots. TRAPA and Tinospora are the example ofassimilatory roots.
1. Stem as Photosynthetic Organ.

In Opuntia, the stem gets modified to take up the function of leaves. It becomes flattened, THICK and succulent and perform photosynthesis. Such structures are called phylloclade.
3. Petiole as Photosynthesis Organ In Australian Acasia the petiole takes the shape and function of phtosynthesis because leaf lamina soon falls off.

16089.

Question : Who is called as father of plant physiology ?

Answer»

Joseph priestlely
LAVOISIER
STEPHEN Hales
VAN Helmont

Answer :C
16090.

Question : Is extragenomic DNA present in prokaryotes and eukaryotes ? If yes, indicate their location in both the types of organisms.

Answer»

Solution :Prokaryotic and EUKARYOTIC both possess external genomic DNA.
In Eukaryota external chromosomal DNA is seen in plastids (Chloroplast) and mitochondria.
In Prokaryote genomic DNA is seen as plasmids. Plasmid is seen in the form of molecules of DNA. Plasmids are molecules of DNA. That PROVIDES UNIQUE phenotype characteristics to BACTERIAL cells.
16091.

Question : Are extra genomic DNA seen in Eukaryotes ?

Answer»

Solution :In prokaryotes like BACTERIA, plasmids are the extra GENOMIC DNA present in cytoplasm.
In Rukaryotes, the CIRCULAR DNA present in matrix of mitochondria & CHLOROPLAST are extragenomic DNA.
16092.

Question : Is earthworm belongs to direct development?

Answer»

Solution :Development is said to be DIRECT if no larva is formed in the LIFE cycle of an ORGANISM. Eg: Earthworm.
16093.

Question : Is connected to the right by the corpus callosum

Answer»


ANSWER :T
16094.

Question : _____is called as reduction division.

Answer»

MEIOSIS
Mitosis
Amitosis
Budding

Solution :Meiosis
16095.

Question : …………….is an alternate way for glucose break down.

Answer»

GLYCOLYSIS
Fermentaion
Respiration
HMP SHUNT

ANSWER :D
16096.

Question : __________is an edible fungus.

Answer»

SOLUTION :AGARICUS
16097.

Question : ………………….is also called as Ray fungi.

Answer»

Basidiomycetes
ASCOMYCETES
ACTINOMYCETES
DEUTEROMYCETES

ANSWER :C
16098.

Question : __is a triple helix protein which allow for great tensile strength.

Answer»

Bone
Collagen
Elastic fibre
Chondrocyte

Answer :A::B::C
16099.

Question : _________is called animal starch

Answer»

Amylose
GLYCOGEN
glucose
Glycerol

Solution :Glycogen
16100.

Question : __________is a source of antibiotic.

Answer»

SOLUTION :PENICILLIUM