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Quiz 14
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Q.1
Fossils of blue green algae were found in lime stones with the age almost as old as
1.3 Billion years
2.3 Billion years
3.3 Billion years
4.3 Billion years
Q.2
Which blood group is universal donor?
O+
O-
AB-
AB+
Q.3
The study of structures of organisms, their cells and their organelles at molecular level is known as
Molecular biology
Environmental biology
Microbiology
Cell biology
Q.4
Biotic component of the environment does not include-
Soil system
Animal system
Micro-organism system
Plant system
Q.5
Amoeba moves in water with the help of locomotory organs called
Setae
Tube feet
Pseudopodia
Flame cell
Q.6
Bacteria are (were) considered more as plants than animals because of the presence of
Small nucleus
Plasma membrane
Cell wall
Spore formation
Q.7
Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of
hormones
enzymes
proteins
vitamins
Q.8
Mutation is
a factor responsible for plant growth
a change which affects the offspring of F
2
generation only
a change that is inherited
a change which affects the parents
Q.9
Phycology is the branch of botany in which we study about
Algae
Fungi
Ecology
Virus
Q.10
The DNA bacterium consists of ring-like pieces known as the
Plasmids
Genes
Chromosomes
Mesosomes
Q.11
A cell wall material present only in blue green algae and bacteria is
Cellulose
Glycogen
Muramic acid
Pectin
Q.12
Liver fluke is parasite in the liver of
Sheep
Goat
Cattle
All of the above
Q.13
They have also proved extremely useful in our quest of knowledge of outer space.
Bacteria
Fungi
Yeasts
None of the above
Q.14
Chemicals like ________ may be added to different foods or fruits to prevent or retard the growth microorganisms.
Potasium
Calcium
Potassium metabisulphite
Sulphur
Q.15
Eutrophication is the result of
Bryophytes
Algae and aquatic plants
Gymnosperm
Pteridophytes
Q.16
Pollination by wind is called
anemophily
hydrophily
zoophily
entomophily
Q.17
Nitrogenous Food is
Proteins
Carbohydrates
Salts
Lipids
Q.18
Which of the following crops would be preffered for sowing in order to enrich the soil with nitrogen?
Wheat
Mustard
Sunflower
Gram
Q.19
In ________ cells the genetic material is without any nuclear membrane covering and is directly submerged in the cytoplasm.
Virus
Algae
Bacteria
Moss
Q.20
Which of the following micro-organism causes diseases like polio and chicken pox?
Bacteria
Protozoa
Algae
Virus
Q.21
What kingdom does Amoeba belong to
Plantae
Protista
Monera
Prokaryotae
Q.22
Bacteria were first discovered by
Robert Koch
Robert Hooke
Louis Pasteur
A.V.Leeuwenhoek
Q.23
Among the many substances manufactured commercially by means of ________ are acetic acid, acetone, butanol, lactic acid and several vitamins.
Viruses
Bacteria
Fungi
Yeast
Q.24
Who discovered the insecticidal properties of DDT?
Othmanzedicer
R.H. Painter
Paul Muller
Rachel Carson
Q.25
There is no bacteria activity in which of the following process?
Sewage disposal
Tanning of leather
Ripening of cheese
Preparation of sillage
Q.26
Most bacteria reproduce by
Budding
Binary fission
Fragmentation
Mitosis
Q.27
The temperature danger zone for food is
5 - 63 deg
Above 45 deg
Below 15 deg
None of the above
Q.28
Some species of which of the below kinds of organisms are employed as biopesticides?
1. Bacteria
2. Fungi
3. Flowering plants
1 only
2 and 3 only
1 and 3 only
1, 2 and 3
Q.29
Golden rice has the highest quantity of
Vitamin A
Vitamin B
Vitamin C
Vitamin K
Q.30
Cyanobacteria are also known as
Autotrophic bacteria
Blue Green Algae
Red Brown Algae
None of the above
Q.31
Branch of biology which deals with the study processing and preservation of food is called
Food technology
Food biotechnology
Food preservation
None of these
Q.32
Which bacteria cause the greatest harm in the food industry?
Recycling
Digestive
Fermenting
Pathogenic
Q.33
Bacteria divides by
Binary Fission
Spirilla
RNA
Fusion
Q.34
In fungi asexual reproduction occurs mostly by
Fragmentation
Budding
Spore formation
All of these
Q.35
In Pedology we study about
Disease
Pollution
Soil
Rockes
Q.36
Biological control is to check growth of
Plants
Animals
Weeds
One pest by another
Q.37
________ reproduces by binary fission.
Amoeba
Liverfiuke
Plasmodium
Planaria
Q.38
The DNA of the bacterium is found present in a distinct nuclear region called
Nucleolus
Centrosome
Nucleoid
Nucleus
Q.39
Which of the following hormone is called the emergency hormone ?
Insulin
Adrenaline
Estrogen
Oxytocin
Q.40
Which cells secrete hormones?
Tissue cells
Museles cells
Respiratory
Glands
Q.41
Which one of following is smallest gland of body?
Liver
Thyroid
Pituitary
Slivary gland
Q.42
Deficiency of which minerals causes goitre?
Magnesium
Calcium
Iodine
Sulphur
Q.43
A viral species is a group of viruses that has
Same ecological niche
Same genetic information
Both A & B
None of the above
Q.44
The litmus paper utilized in the chemical laboratories is made of :
Fern
Algae
Lichen
Fungi
Q.45
Important plant diseases like fire-blight and crown all are caused by
Viruses
Bacteria
Fungi
Protozoans
Q.46
Dried milk dried meat are examples of preservation by
Pasteurization
Dehydration
Strerilization
None of the above
Q.47
The biofertilizer used or the paddy crops is
Blue-green algae
Rhizobium species
Fungal root fungal
Azetobactor species
Q.48
Which of the following plants have root nodules?
Leguminous plants
Parasitic plants
Epiphytic Plants
Aquatic Plants
Q.49
Branch of agriculture concerned with the production of crops is
Agrotology
Agronomy
Agrostology
Anthropology
Q.50
In autotrophic bacteria, where is chlorophyll located?
In the nucleoid
In the infolded plasma membrane
In the ribosomes
In chloroplast membranes
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