1. Which of the following is the correct
taxonomic hierarchy?
(a) Kingdom – Phylum – Order – Genus – Family –
Class – Species
(b) Kingdom – order – class – Phylum – Family –
Genus – Species
(c) Kingdom – class – order – Phylum – Family –
Species – Genus
(d) Kingdom – Phylum – class – order – family –
Genus – Species
2. The subunits of DNA are known as
(a) Nucleotide
(b) Nucleosome
(c) Nucleoside
(d) Polypeptide
3. How is the rate of transpiration affected by
decreasing humidity and by decreasing light intensity?
Decreasing Humidity Decreasing light intensity
(a) Decreases Decreases
(b) Increases Decreases
(c) Increases Increases
(d) Decreases Increases
4. Vaccination involves:
(a) injecting the body with materials that
stimulate the body to produce antibodies
(b) injecting the body with materials that
stimulate the body to produce antigens
(c) the use of monoclonal antibodies to cure a
disease
(d) use of antibiotics to cure diseases
5. Which of the following are examples of
carnivorous plants?
(a) Sundew, venus flytrap, pitcher plant
(b) Cascuta, Rafflesia, Mistletoe
(c) Sandalwood tree, Broom rape, Pitcher plant
(d) Cuscuta,
Bladderwort, Mistletoe
6. Which one of the following statements
regarding Zika virus is not correct?
(a) It was first isolated from a monkey in the
Zika forest of Uganda
(b) It is transmitted by day time active Aedes
mosquitoes
(c) It does not cause mother to child infection
(d) Zika virus in pregnant women results in
abnormal brain development of the fetus
7. Statement I: Chameleon changes its skin colour
to match with the colour of the surroundings
Statement II: The skin of Chameleon emits light of the colour of the
surrounding through fluorescence
(a) Both the statements are individually true and
statement II is correct explanation of statement I
(b) Both the statements are individually true but
statement II is not correct explanation of statement I
(c) Statement I is true but statement II is false
(d) Statement I is false but statement II is true
8. Which one of the following artificial
sweetners is modified sugar?
(a) Aspartame
(b) Saccharin
(c) Sucralose
(d) Alitame
9. Which one of the following polymers is made of
protein?
(a) Rubber
(b) Cotton
(c) Wool
(d) Jute
10. Which of the following diseases are caused by
the consumption of water contaminated by mercury and nitrate?
(a) Minamata disease and Osteoporosis
(b) Osteoporosis and Blue baby syndrome
(c) Minamata disease and Blue baby syndrome
(d) Osteoporosis and Minamata disease
11. Which one of the following elements is
present in the green pigment of leaves?
(a) Magnesium
(b) Iron
(c) Calcium
(d) Copper
12. Which one of the following is not correct
about the organic farming?
(a) It doesnot use genetically modified seeds
(b) Synthetic pesticides or fertilizers are not
used
(c) It uses minimal crop rotation
(d) It uses ecological protective practices
13. Which one of the following diseases is caused
by Cadmium pollution?
(a) Minimata
(b) Itai – Itai
(c) Flurosis
(d) Blue baby syndrome
14. Which one of the following is a major effect
of long term consumption of drinking water containing little (less than 0.5
ppm) or no fluoride?
(a) Cavity of teeth
(b) Erosion of nail
(c) Deformation of bone
(d) Mottling of teeth
15. Which one of the following is not decomposed
by bacterial action?
(a) Vegetable remains
(b) Plastic materials
(c) Animal carcasses
(d) Wastes of flowers
16. Which one of the following statements about
transport mechanism in plants is correct?
(a) Diffusion of ions and small molecules across
cell membrane requires energy
(b) Active transport of ions and small moleules
across cell membrane against concentration gradient requires energy
(c) Cells conserve energy and no energy is
required for transport of ions and small molecules against concentration
gradient
(d) cells do not transport ions across their
membrane as these are charged molecules
17. Which one of the following statements about
blood elements is correct?
(a) Red blood cells number is same as that of
White blood cells and platelets
(b) The number of White Blood cells is more than
Red blood cells
(c) The number of Red blood cells is the highest
(d) The number of Red blood cells is lower than
platelets
18. Which one of the following statements
regarding Insulin hormone is correct?
(a) Insulin is a protein hormone which is not
produced in human body
(b) Insulin is a steroid hormone which is
produced in human body
(c) Insulin is a cholesterol driven hormone given
to human
(d) Insulin is a protein hormone which is
produced in human body
19. Which one of the following statements
regarding muscle contraction and relaxation is correct?
(a) It involves movement if Zn ++ ion
(b) It involves Ca++ ion of blood
(c) It involves release of Ca++ from
sarcoplasmic reticulum (SR) and pumping Ca++ back in SR
(d) It involves exchange of Na & K
20. Which one of the following statements
regarding digestion is correct?
a. Fat present in the food is digested by trypsin
and chymotrypsin
b. Starch of food is digested by lipases
c. Fat of food is digested by lipases
d. Nucleic acid is digested by amylases
21. Which one of the following statements is
correct?
(a) In photosynthesis by green plants, carbon
dioxide is used for making carbohydrate
(b) During photosynthesis, plants use oxygen for
making carbohydrate
(c) The carbohydrate generated by plants comes
from soil
(d) The carbohydrate generated by plants comes
from Urea
22. The Eukaryotic chromatin is composed of
(a) DNA only
(b) DNA and Protein
(c) DNA and RNA
(d) RNA and protein
23. In which of the following Phylum, would you
place an animal with a bilaterally symmetrical, triploblastic body without a
true internal cavity (Coelom)?
(a) porifera
(b) Platyhelminthes
(c) Cnidaria
(d) Annelida
24. During respiration in human beings, the
actual place of gaseous exchange is
(a) Bronchi
(b) Nasal passage
(c) Alveoli
(d) Trachea
25. In human body, the hormone which is secreted
into blood and which controls the rate of heart beat is
(a) Adrenaline
(b) Thyroxine
(c) Insulin
(d) Testosterone
26. In human beings, certain chemicals which
cross the synapse between nerve cells are released from
(a) cell body of nerve cell
(b) Nucleus of nerve cell
(c) Nerve ending of nerve cell
(d) Axon of nerve cell
27. Which one of the following is the major
function of platelets
(a) clotting of blood
(b) O2 transport
(c) Immunity
(d) Phagocytosis
28. In which part of the cell, the glucose is
converted to pyruvate?
(a) Mitochondria
(b) Nucleus
(c) Cytoplasm
(d) Endoplasmic reticulum
29. After fertilization, the ovule and ovary
subsequently develop to form
(a) Seed and fruit respectively
(b) Fruit and seed respectively
(c) Seed and flower respectively
(d) degenerated Ovule and seedless fruit
respectively
30. Which one of the following statements is
correct?
(a) Glucose breaks down to CO2, H2O
and energy in all organisms
(b) Glucose breakdown into ethanol, CO2 and
energy in our muscle cells
(c) Glucose breaks down into CO2, H2O
and energy in all aerobic tissues
(d) Glucose breaks down into lactate and energy
in yeast
31. Which of the following statements is correct?
(a) Bacteria contain cytoplasm but viruses do not
(b) Bacteria contain mitochondria but viruses do
not
(c) Viruses contain mitochondria but bacteria do
not
(d) Viruses have a cell membrane but bacteria do
not
32. Which one of the following will happen if the
medium surrounding the cell has a higher concentration than the cell?
(a) The cell will gain water
(b) The cell will die
(c) There will be no change
(d) The cell will lose water
33. Rough Endoplasmic Reticulum (RER) looks rough
under the microscope because of the attachment of which one of the following cell
organelles to its surface?
(a) centrioles
(b) Plastids
(c) Lysosomes
(d) Ribosomes
34. The increase in length of stems and roots in
plants is due to
(a) lateral meristem
(b) intercalary meristem
(c) Apical meristem
(d) Secondary growth
35. In plant cells, the turgidity and rigidity is
provided by
(a) Ribosomes
(b) Mitochondria
(c) Golgi apparatus
(d) Vacuoles full of cell sap
36. Pollens are produced in
(a) Corolla
(b) Style
(c) Stigma
(d) Anther
37. Phreatophytes are the plants adapted to grow
in
(a) Moist shaded places
(b) Rocky environments
(c) Arid environments
(d) Active volcanic lava
38. Which of the following organisms belongs to
Coelenterata (Cnidaria)?
(a) Planaria and liverfluke
(b) Sea Urhin and Sea cucumber
(c) Hydra and Sea anemone
(d) Euplectella and sycon
39. Bending of shoot of a plant towards light can
be referred to as
(a) Photonasty
(b) Positive phototropism
(c) Negative phototropism
(d) Photoperiodism
40. Epidermal cells of plant roots increase their
absorption surface by having
(a) Scales
(b) Root hairs
(c) Endodermis
(d) Stomata