Xbit(bio-e) 28-3.qxd

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Tenth Bit Bank
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BIOLOGY
A plant is kept in dark cupboard for about forty eight hours before conducting any experiment on
Photosynthesis in order to .....
a) Remove Chorophyll from leaves
b) Remove Starch from leaves
c) Ensure that no photosynthesis occurred
d) Ensure that leaves are free from the Starch
In single celled animals the food is taken ......
a) By the entire body surface
b) Mouth
c) Teeth
d) Vacuoles
Energy is stored in .........
a) nucleus
b) mitochondria
c) ribosomes
d) cell wall
Cluster of air sacs in lungs are called?
a) alveolus
b) bronchi
c) braonchioles
d) air spaces
Blood on which side of the human heart is low in oxygen?
a) left vetricle
b) right ventricle
c) left atrium
d) right atrium
Which of the following opinion is correct?
a) Ravi said, xylem and phloem cells arranged one upon the other to form a tube like structure.
b) John said, xylem and phloem are not separate tube like structures.
c) Salma said, xylem and phloem cells connect together to form a tube like structure.
d) Hari said, because of its shape they said to be tube like structures
Sequence of urine formation in nephron is ....
a) Glomerular filtration, Tubular reabsorption, Tubular secretion
b) Tubular reabsorption, Tubular secretion, Glomerular filtration.
c) Tubular secretion, Glomerular filtration, Tubular reabsorption
d) Tubular reabsorption, concentration of urine, Tubular secretion
Special excretory organs are absent in .....
a) birds
b) amoeba
c) sponges
d) birds, amoeba
Leaf movement in mimosa helps to .......
a) reduce photosynthesis
b) protect from greazers
c) releasing phyto hormones
d) regulate it's growth
A person loss of control on emotions, which part of brain stops it's function?
a) cerebrum
b) diencephalon
c) mid brain
d) cerebellum
Why are egg cells larger than sperm cells? Choose the option you think is right.
a) Egg cells have more cells in them
b) Have food store to help growth after fertilisation
c) Have thicker cell membranes
d) Have larger nuclei
The part of the female reproductive system produces the eggs?
a) Ovam
b) Epididymis
c) Cervix
d) Fallopian tube
Human organism is an internal combustion machine because of .......
a) assimillation of energy from food
b) liberate CO2 during respiration
c) Expel waste food at the end state digestion
d) Secrete powerful digestive juices
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R-28-3-15
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Peristalasis is because of .....
a) Contraction of longitudinal muscles.
b) Contraction of circular muscles.
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c) Under control of autonamous nervous system.
d) Digestive secretions.
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a) Pair of genes
b) Responsible for character
c) Gametes
d) Ressisive factors
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Palaeontologist dealing with .......
a) Embryological evidences
b) Fossil evidences
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c) Vestigious organ evidences
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d) Heredity variations
Ban all pesticides, this means that .......
a) control on usage of pesticides
d) stop bio chemical factories
What does a food chain always start with?
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a) The herbivore
c) The producer
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b) prevention of pesticides
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c) promote eco friendly agricultural practices
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According to Mendal alleles have the following character .......
b) The carnivore
d) none of them
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Percolation tanks helps to .......
a) supply water for agriculture
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b) increase ground water level
c) preserve rain water
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d) prevent overflow of water from tanks during rainy season.
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a) prevention of wastage
b) stable growth
c) development without damaging
d) high yielding in less time.
b) Anaemia
b) spongy
b) lungs
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c) filtration
d) narrow
c) heart
d) blood capillaries
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b) kidney transplantation
d) blood transfusion
Seat of mental abilities, controls thinking, memory, reasoning, perception, emotions and speech .......
a) Diencephalon
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c) tube like
The best long term solution for kidney failure is ........
a) dialysis
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d) Cataract
The structures that establish continuity between arteries and veins .....
a) valves
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c) cardiac arrest
Our lungs are ....... in nature.
a) rigid
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This is a disease due to malnutrition ......
a) Kwashiorkor
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Sustainable development means ........
b) mid brain
c) cerebellum
d) cerebrum
c) 180 days
d) 600 days
Gestation period in human beings ........
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a) 280 days
b) 200 days
ANSWERS
1-b; 2-a; 3-b; 4-a; 5-d; 6-c; 7-a; 8-b; 9-d; 10-b; 11-b; 12-a; 13-a; 14-c; 15-a; 16-b; 17-c; 18-c;
19-d; 20-c; 21-a; 22-b; 23-d; 24-b; 25-d; 26-a.
Writer: K. Vijaya Bhanu
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Tenth Bit Bank
BIOLOGY
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The finger like projections which increases the surface area in small intestine is called villi.
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Lenticels are the respiratory organs existing in woody part of plant.
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The organisms that are in the top tropic level of the food chain are tertiary consumers.
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Number of pairs of chromosomes in human beings are 23.
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Multiple choice questions.
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Which part of the plant takes in carbon dioxide from the air for photosynthesis?
a) Root hair
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b) Stomata
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c) Leaf veins
d) Sepals
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Which of the following is correct?
a) the diaphragm contracts - volume of chest cavity increased
b) the diaphragm contracts - volume of chest cavity decreased
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c) the diaphragm expands - volume of chest cavity increased
d) the diaphragm expands - volume of chest cavity decreased
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Which of the following opinion is correct?
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a) Ravi said, xylem and phloem cells arranged one upon the other to form a tube like structure.
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b) John said, xylem and phloem are not separate tube like structures.
c) Salma said, xylem and phloem cells connect together to form a tube like structure.
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d) Hari said, because of its shape they said to be tube like structures
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Amber colour to urine due to...
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a) urochrome
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b) bilirubin
b) pancreas
c) adrenal
b) Dissolves the membrane with chemicals
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c) Bites through the membrane with teeth
d) Squeezes through gaps in the membrane
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Human organism is an internal combustion machine because of ......
a) assimilation of energy from food
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c) expel waste food at the end state digestion
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d) pituitary
How does the sperm break through the egg cell membrane? Choose the option you think is right.
a) Tears a hole in the membrane
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d) chlorides
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Diabetes is related to this gland...
a) thyroid
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c) biliverdin
Natural selection means....
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b) liberate CO2 during respiration
d) secrete powerful digestive juices
a) Nature select desirable characters
b) Nature rejects undesirable characters
c) Nature recent with organism
d) a, b
According to Charles Elton....
a) carnivores at the top of the pyramid
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b) energy trapping is high at the top of the pyramid
c) No producers at the top of the pyramid
d) a and c
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Huge amount of toxic chemicals leak into the surrounding eco system because of....
a) industries
R-19-3-15
b) mining
c) pesticides
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d) modern technology
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Light energy in photosynthesis transforms into ..........
a) chemical energy
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b) electric energy
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b) kwashiorkor
c) Adenine Tri Phosphorus
d) Adenosine Tri Phosphate
Products of anaerobic respiration ....
b) ethanol/ lactic acid
c) lactic acid/ oxygen
d) citric acid/ lactic acid
b) vascular stamen
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b) diastolic, systolic
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b) quinine
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d) latex
b) vasopressin
c) auxin
d) thyroxine
b) 21, 18
c) 32, 20
d) 18,21
b) metrobacillus
c) fungus
d) yeast
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The pH nature of the saliva....
b) watery
c) basic
d) gaseous
The age of fossils is estimated by -............ method.
b) carbon dating
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c) sulphur printing
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Disease caused due to the pollution of mercury is ........
a) obesity
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c) gums
The bacteria that turns milk into curd is.....
a) carbon plating
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d) diastolic, response
Marriage age for men is ..... and women is......
a) acidic
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c) systolic, pressure
The hormone that increases the metabolic rate .....
a) lactobacillus
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d) water
The alkaloid used in prevention of malaria ....
a) 20, 16
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c) food
In blood pressure, 120/80, 120 shows ..... pressure and 80 shows ....... pressure.
a) adrenaline
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a) ethanol/ citric acid
Xylem and phloem form ......
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b) Adenosine Tri Phenophthalene
a) sulphur dioxide
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d) influenza
a) Adenosine Tetra Phosphate
a) systolic, diastolic
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c) measles
Abbreviation of ATP .....
a) vascular bundle
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d) renewable energy
Disease caused due to protein malnutrition ......
a) marasmus
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c) mechanical energy
b) diabetes
c) anaemia
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d) x-ray
d) minimata
The scientist who introduced ecological pyramid ..........
a) Charles Elton
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b) Charles Darwin
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This is symbol for......
a) reuse
b) recycle
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c) Mendel
d) Watson
c) reduce
d) usage
ANSWERS
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1-b; 2-a; 3-c; 4-a; 5-b; 6-b; 7-a; 8-d; 9-d; 10-b; 11-a; 12-b; 13-d; 14-b; 15-a; 16-a; 17-b; 18-d; 19-b; 20-a;
21-c; 22-b; 23-d; 24-a; 25-b.
Writer: K.Vijaya Bhanu
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