CHAPTER NO .15
HOMEOSTASIS
Important Short Questions
1.
Define homeostasis?
2.
Define osmoregulation?
3.
Define excretion?
4.
Define
themoregulation?
5.
What is
hypertonic,hypotonic and isotonic environment?
6.
Differentiate between
osmoregulation and osmoconformers?
7.
Define anhydrobioses
and give an exemple?
8.
What is excretophore?
9.
Define ammonotelic
ureotelic and uricotelic animals?
10.
What are flame cells?
11.
Differentiate between
ureter and urethra?
12.
What is counter
current multiplier?
13.
Define lithotripsy and
which tecniques are used to remove kidney stones?
14.
How peritonial
dialysis is done?
15.
What is peritonial
dailysis and describe its types?
16.
What are heat shock
protiens?
17.
What are
poikilotherms?
18.
What are homeotherms?
19.
Differentiate between
endothems and ectothems and heterotherms?
20.
what role hormones
play in kidney?
21.
Differentiate
shivering and non shivering themogenesis?
22.
Define blubber?
23.
Write a short note on
pyrexia?
24.
What are pyrogens?
25.
What is renal failure?
26.
Why do the filtration
takes place only at gromeruli part and nowhere else?
Important Long
Questions
1.
What
is osmoregulation in plants and describe its tpyes in details?
2.
Describe excretion in
cockroack?
3.
Describe urinary
system and what is the role of nephron in kindney?
4.
Discuss kidney
problems and causes?
5.
Whrite a note on
pyrexia?
CHAPTER NO.16
SUPPORT
AND MOVEMENT
Important Short Questions
1.
Define turgor
pressure?
2.
Define secondary
growth?
3.
Differentiate between
sapwood and heartwood?
4.
Differentiate between
autonomic movements and peratonic movments?
5.
What are phototatic
movements and chemotatic movements?
6.
What are sleep
movements?
7.
What are
rapid movement of leaflets and give an exemple?
8.
Differentiate between
epinasty hyponasty and nutation?
9.
Define phototropism
with exemple?
10.
Define thigmotropism
with exemple?
11.
Define chemotropism
with exemple?
12.
Define hydrotopism
with exemple?
13.
Define geotropism with
exemple?
14.
Define nyctinasty with
exemple?
15.
Define photonasty with
exemple?
16.
Define thermoonasty with
exemple?
17.
Define hyponasty with
exemple?
18.
Differentiate
between endotherm and ectothems?
19.
What is ecdysis or
molting?
20.
Write some magor
functions of some skeleton muscules?
21.
Define cartilage and
its types?
22.
Write the names of
unpaired and paired bones of crenium?
23.
Write the names of
unpaired and paired facial bones?
24.
What are synovial
joints and discribe its types?
25.
Differentiate between
microcephaly,arthritus and osteoarthritis?
26.
Define rickets,its
causes and how it can be treated?
27.
What is hematoma
formation?
28.
Define remolding?
29.
Define secromere?
30.
Dieffrentiate between
tropomayosin and toponin?
31.
What is rigor mortis?
32.
Diffrentiate between
tetney and term tetnus?
33.
What are the causes of
cramps?
34.
Differentiate between
origin and insertion?
35.
Differentiate between
ligment and tendons?
36.
What is antagonastic?
37.
Diffrentiate between
branchialis and brachioradius?
38.
Differ between
effective stock and recovery stock?
39.
What is jet
propultion?
40.
What is passive and
active flight?
41.
What are
plantigrade,digitigrade and ungligrade animals?
42.
How muscle fatige is
produce?
43.
Differ between axial
skeleton and appendicular skeleton?
44.
Differ btween
phototatic and chemotatic movements?
45.
Diffrentiate between
ostiosyts and osteoblast?
46.
Differ between
brachialis and brachioradialis?
47.
What is origin and
insertion?
48.
Differ between bone
and cartilage?
49.
What is troponin and
tropomiysin?
Important Long Questions
1.
Write the significance
of secondary growth?
2.
Movement in plants and
its both types in detail?
3.
Describe axial
skeleton and appendicular skeleton?
4.
Write a
note on repairing of broken bones?
5.
Locomotion in mammals?
CHAPTER NO.17
COORDINATION AND CONTROL
1.
How do the plants
differ from animals and their coordiantion?
2.
Differ between
etiolated and chlorosis?
3.
What is the diffrence
between calluses and galls?
4.
Define circadian and
circannual rythmes?
5.
What is the commercial
apllication of auxins?
6.
Define recenpters and
its types?
7.
What are neurolgia?
8.
What are effecters and
how they respond?
9.
Define reflex arc?
10.
Define resting
membrane potiential?
11.
Define active membrane
potiential?
12.
What is synapes?
13.
What are
nurotransmeters with exemples?
14.
Differ between ganglia
and nerves?
15.
What are ceribral and
crenial nerves?
16.
Define sympathetic
system?
17.
Define parasympethetic
system?
18.
What is
parkinsons disease?
19.
What is epilepsy?
20.
What is Alzumer's
disease?
21.
What is the action of
nicotin?
22.
Define hormones and
its properties?
23.
What is the effect low
and high concentration of perathyroid glands ?
24.
Define kineses?
25.
What is reflexes and
instincts?
26.
Define imprinting with
exemple?
27.
Define habituation
with exemple?
28.
Diffrentiate between
latent and insight learning?
29.
What is the difference
between CNS and PNS?
30.
What are the function
of paratyroid glands?
31.
Define the terms of
hormones?
32.
List different types
of topsin?
Important
Long Questions
1.
Write plant hormones
and its types in details?
2.
What are neurons and
define structure and function of different types of neurons?
3.
Describe resting
membrane potiential in detail?
4.
Describe active
membrane potiential in detail?
5.
Define synapse?what
are its functions?
6.
Write a note on brain?
7.
Write down the
structure and function of human spinal cord?
8.
Write down the
learning behavioure and its types in detail?
CHAPER NO.18
REPRODUCTION
Important Short
Questions
1.
Define reproduction
and its types?
2.
What is a difference
between sexual and asexual reproduction?
3.
Differ between isomorphic
and heteromorphic?
4.
Define parthenocarpy
with exemple?
5.
What is seed dormancy?
6.
Define photoperiodism?
7.
What is vernalization?
8.
What is
parthenogenesis with exemple?
9.
What is cloning?
10.
Differ betweeen
identical twins and fraternal twins?
11.
Differ between
oviperous and viviperous animals
12.
What are steroli
cells?
13.
What is ovulation and
how it is controls?
14.
What is plecenta and
how it is esteblished?
15.
What is oestrous
cycle?
16.
What is the role of
fetal pituitry in the events of birth?
17.
Write a short note on
test tube baby?
18.
What is gonorrhoa?
19.
What is syphillis?
20.
What is genital
herpes?
21.
What changes occur in
ovulation and menstruation during pregnancy?
22.
What is the difference
between oogenesis and spermatoganesis in humans?
23.
How is seed formed?
24.
What is the importance
of seed in the life cycle of a plant?
Important Long Questions
1.
Describe
photoperiodism in detail?
2.
What is vernalization?
3.
Describe male
reproduction system?
4.
Describe
female reproduction system?
5.
Describe various
stages of female reproductive cycle?
6.
Explain the
reproductive process in human being?
7.
Biology MCQs for Class 12 Test 1
1. Alzheimer’s disease is characterized by the
decline in the function of
Brain
Liver
Kidney
Stomach
2. In terrestrial conditions fertilization is
External
Internal
Internal
None of these
3. Biorhythms may occur showing periodicity of
about
6-hours
12-hours
18-hours
24-hours
4. During development most of the neurons in the
human body
Die
Store Food
Become large
Become small
5. Cerebrum is the largest part of the brain and
is divided into two halves called cerebral
Hemi-Circles
Hemispheres
Hemi-Ellipses
None of these
6. Smooth muscles are long and spindle shaped
with each containing
Single nucleus
Two nuclei
Three nuclei
Poly nuclei
7. Full cell cycle in yeast cells is only
15 minutes
30 minutes
60 minutes
90 minutes
8. A role in DNA repair is played by
DNA polymerase I
DNA polymerase II
DNA polymerase III
DNA polymerase IV
9. The bands have mid line called
K-lines
L-lines
M-lines
Z-lines
10. The symptoms of diabetes mellitus are high
level of blood sugar, sugar in the urine, a disturbance of the body’s osmotic
equilibrium and derangement of the
Nervous System
Digestive System
Respiratory system
None of these
11. In animals much more variety of hormones and
the nervous control, make them respond with
Greater speed to specific stimuli
Slow speed to specific stimuli
Normal speed to specific stimuli
None of these
12. The movement in curvature of whole organ
towards or away from stimuli such as light, gravity and touch is
Tactic Movement
Nastic Movement
Tropic Movement
Turgor Movement
13. The vertebral column consists of vertebrae
22
33
44
55
14. Medulla oblongata narrows down into an oval
shaped hollow cylinder, the spinal cord, running through the
Neural Tube
Vertebral Column
Digestive Tract
Vascular Channel
15. DNA was discovered in 1869 by
Erwin Chargaff
Alfred Hershey
Walter Fleming
Friedrich Miescher
16. Many plants take on a yellowish hue when they
fail to form sufficient chlorophyll in sufficient amounts. This condition is
known as
Photosynthesis
Dehydration
Chlorosis
None of these
17. Effect of photoperodium was first studied in
1920 by
Newton
Maxwell
Gamer and Allard
None of these
18. The chromosomes acquire different shapes at
the time of
Anaphase
Metaphase
Prophase
Telophase
19. Following the GI is the S-phase during which
the DNA is synthesized and chromosomes number is
Doubled
Tripled
Four folded
None of these
20. The follicle cells, after release of the egg,
are modified to form a special structure called
Cervix
Progesterone
Liver
Corpus luteum
21. Gibberellins are produced commercially from
Fungal cultures
Ammonia cultures
Potassium cultures
None of these
22. Crossing over and random assortment of
chromosomes are two significant happenings of
Meiosis
Mitosis
Malignancy
None of these
23. In the Case of neuron, the charges are
positive and negative ions, and the charge separating barrier is the
Electron
Proton
Plasma Membrane
None of these
24. Resting membrane potential is
0.03
0.07
0.05
0.09
25. The first two cervical vertebrae are
Atlas & Sacrum
Lumbar & Sacrum
Atlas & Axis
Lumbar & Coccyx
26. In the skin there are at least different types
of sensory endings involved in touch stimnlus reception
Effectors
Axons
Receptors
None of these
27. If plants are wounded, they often develop masses
of amorphous material with very prior differentiation known as
Calluses
Glucose
Fat
None of these
28. The main transmitter for synapses that lie
outside the central nervous system is
Adrenaline
Acetylcholine
Serotonin
Dopamine
29. Autosomal non-disjunction may occur in other
than
9th chromosome
11th chromosome
19th chromosome
21th chromosome
30. Test cross is a mating in which an individual
showing a dominant phenotype is crossed with an individual showing its
Dominant phenotype
Heterozygote
Homozygote
Recessive phenotype
Biology MCQs for Class
12 with Answers Test 2
1. TATAAT sequence also called
35 sequence
25 sequence
20 sequence
10 sequence
2. Hypothalamus responds to the changes in the temperature
above and below a set point which is
27°C
37°C
47°C
57°C
3. The disease which is caused by herpes type 2
viruses is
AIDS
Gonorrhoea
Syphilis
Genital herpes
4. The joint which contains a cavity filled with
fluid and is adapted to reduce friction between the moving joints is called
Synovial Joint
Hinge Joint
Ball And Socket Joint
None of these
5. A longitudinal folding has occurred,
establishing the neural groove in the mid dorsal line, on either side of neural
folds, in chick embryo of
31-32 hours
25-26 hours
21-22 hours
35-36 hours
6. Lateral Meristems are present in dicots and
Roots
Stems
Chromosomes B
Gymnosperms
7. The mechanism of maintenance of internal
temperature within a tolerable range is designated as
Hydrolysis
Homeostasis
Osmoregulation
Thennoregulation
8. The individual cell develops an internal
hydrostatic pressure which keeps cells rigid and resistant L bending is called
Atmospheric Pressure
Air Pressure
Turgor Pressure
None of these
9. In joints arthritis arises from the
degeneration of
Cartilage
Tunica Media
Propagation
None of these
10. In hydrophytes extensive stomata are present
on the upper surface facing the atmosphere to
Prevent loss of water
Promote gain of water
Promote loss of water
None of these
11. An increase in plant girth due to the activity
of vascular cambium is called
Primary growth
Secondary Growth
Neither primary nor secondary growth
None of these
12. Uric acid is produced from
Amino Acids
Fatty Acids
Nucleic Acids
Nitric Acids
13. Gray vegetal cytoplasm gives rise to
Gut
Muscle Cells
Larval Epidermis
None of these
14. The incidence of which types is 70% of all the
kidney stones
Calcium Oxalate
Calcium Phosphate
Nitrates
Uric Acid
15. The tubular system of planarian is drained
into excretory ducts, which open to the exterior through several
Nephridiopores
Excretory Pores
Exteriopores
Renal Pores
16. Mammalian kidney including human is adapted to
conserve water by over
49.5%
50%
70%
99.5%
17. The frog did not develop any
Digestive system
Respiratory System
Nervous System
None of these
18. The excretory product that requires minimum
water for its elimination compare to other is
Creatinine
Ammonia
Uric Acid
Urea
19. A plant has a growth pattern called
Closed growth
Open growth
Open and closed growth
None of these
20. The hereditary information injected into the
bacteria that specified the new generation of viruses was
Protein and no DNA
DNA and not protein
NETHER DNA nor protein
Protein
21. The functional units nephrons in human kidneys
are arranged along two distinct regions, an outer cortex and an
Cortical
Inner Medulla
Urethra
None of these
22. The growing tip of young stem moves in zigzag
fashion due to alternate changes in growth on opposite side of the apex. This
mode of growth is called
Nutation
Nutrition
Purification
None of these
23. Morgan’s experiment was one of the most
important in the history of
Enzymes
Genetics
Clusters
None of these
24. The keeps the internal fluctuations in a
narrow range with various control systems compared to wider external
fluctuations
Hydrolysis
Homeostasis
Electrolysis
Excretion
25. Phytochromes exist in two forms
P 660 and P 530
P 630 and P 730
P 660 and P 730
P 460 and P 730
26. Two ammonia and one carbon dioxide molecules
are shunted into the cycle to generate of urea
Four Molecules
Three Molecules
Two Molecules
One Molecules
27. The haploid egg develops into haploid
offspring and it is called haploid
Budding
Fission
Parthenogenesis
Regeneration
28. Abdomen has a peritoneal cavity, lined by a
thin epithelium called
Peritoneum
Root
Stem
Leaves
29. In kidney nephron is closely associated with
network of
Vessels
Capillaries
Arteries
None of these
30. If 1 % of recombination frequency is equal to
1 unit map distance, the two linked genes A and B with a 20% recombination
frequency must be units apart
5
10
15
20
Biology MCQs for Class
12 with Answers Test 3
1. Tubular system in planaria is spread
throughout the body and branches are capped by a cellular setup termed as
Flame Cell
Flame Molecule
Flame Atom
None of these
2. The functional units nephrons in human kidneys
are arranged along two distinct regions an outer cortex and an
Cortical
Inner Medulla
Urethra
None of these
3. The parts of the body used extensively to cope
with the environment become larger and stronger, while those that ar4e not used
deteriorate was argued by
Charles Darwin
Alfred Wallace
Carolus Linnaeus
J.B. Lamarck
4. Nitrogen makes tip of the gases in atmosphere
48%
58%
68%
78%
5. Pelvic girdle attaches the hind limb to the
Vertebral Column
Hip
Shoulder
Chest
6. Mouse has chromosomes
20
26
40
46
7. Test cross is a mating in which an individual
showing a dominant phenotype is crossed with an individual showing its
Dominant phenotype
Heterozygote
Homozygote
Recessive phenotype
8. The generation of wastes is primarily done at
metabolic level and these are called
Metabolic gains
Metabolic wastes
Metabolic catalysts
None of these
9. A central role for chromosomes in heredity was
first suggested in by the German geneticist Karl Carrels
1600
1700
1800
1900
10. A significant amount of RNA is also associated
with chromosomes, because these are the sites of RNA
Synthesis
Analysis
Composition
None of these
11. Mammalian kidney is added to conserve water by
over
59.5%
69.5%
79.5%
99.5%
12. The total aggregate of genes in a population
at any one time is called the
Evolution
Population’s Gene Pod
Biogeography
None of these
13. For a diploid species, each locus is represented
in the genome of an individual, who may be either homozygous or heterozygous
Half
Twice
Thrice
None of these
14. The metabolic pathways involved in the
production of urea are termed as
Blood cycle
Urea cycle
Carbon cycle
Oxygen cycle
15. Proteins and nucleoproteins metabolism in
various forms in different
Produces waste nitrogen
Does not produce waste nitrogen
Produces waste chloroform
None of these
16. At rest 1/5 the lactic acid is broken
aerobically and its energy is used to change remaining 4/5 lactic acid into
Sucrose
Lactose
Glucose
Fructose
17. The cavity formed between somatic and
splanchnic mesoderm is
Coelom
Spinal Cord
Teratogens
None of these
18. The chick egg is called the
Primitive Streak
Cleavage
Yolk
None of these
19. Mendel proposed that each contrasting form of
a trait, e.g. Roundness or wrinkledness of seed was determined by particulate
hereditary factors which called
Eletnenten
Population
Offspring
None of these
20. A true breeding “wrinkled’ seed plant
Cannot produce “wrinkled” seeds
Produced only “round” seeds
Produced only “wrinkled” seeds
None of these
21. Ozone molecule is made up by binding of three
atoms of
Nitrogen
Oxygen
Hydrogen
Carbon
22. Coniferous forests located at high altitude
are called
Taiga
Alpine
Boreal
Prairies
23. The polymerase chain reaction (PCR) was
developed in 1983 by
Kary B. Mullis
Gottlieb Haberlandt
Theodore M. Klein
J. Craig Venter
24. Evolutionary relationships among species are
reflected in their
DNA and proteins
RNA and proteins
DNA and RNA
None of these
25. The endoskeleton is primarily made up of two
types of tissues
Bones and muscles
Cartilage and muscles
Bones and Cartilage
None of these
26. Both bones and cartilage consist of living
cells embedded in the matrix of protein called
Collagen
Keratin
Insulin
Fibrinogen
27. Diploid individuals have two copies of each
pair of homologous chromosomes gametes have
Only One
Three
Four
Five
28. Salt-water ocean and sea are the largest
ecosystems on the earth about of its surface
41%
51%
61%
71%
29. The relationship between insects and flowering
plants is the example of
Commensalism
Mutualism
Predation
Parasitism
30. Organisms within the biosphere not only adapt
to the environment but also interact to modify and control chemical and
physical conditions of the
Community
Ecosystem
Biosphere
None of these
31. The three hypothesis of DNA replication were
evaluating for Matthew Meselson and Franklin Stahl in
1658
1758
1858
1958
32. SRY is located at the tip of short arm of
X-chromosome
Y-chromosome
Z-Chromosome
None of these
33. Regeneration healing of wounds and replacement
of older cells all are the gifts of
Meiosis
Mitosis
Chromosomes
None of these
34. Homogentisic acid oxidized rapidly when
exposed to air turning the urine
Black
White
Yellow
Red
35. The sequence of nucleotides that determines
the amino acid sequence of a protein is called a
Clot
Gene
Chromosome
None of these
36. Fungi causing dandruff in hair are
Infestations
Ectoparasites
Endoparasites
None of these
37. The period of life cycle of cell (cell cycle)
between two consecutive divisions is termed as the
Cell Division
Cell Cycle
Interphase
None of these
38. The first step of central dogma is the
transfer of information from
DNA to DNA
RNA to DNA
DNA to RNA
RNA to RNA
39. The chemical waste from industry comprises
called
Effluents
Biometry
Ozone Layer Depletion
Ozone Layer
40. Population’s gene pool consists of all alleles
at all gene loci in all individuals of the
Population
Homologous
Character
None of these
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