Q.1
Fossils of blue green algae were found in lime stones with the age almost as old as
Q.2
Which blood group is universal donor?
Q.3
The study of structures of organisms, their cells and their organelles at molecular level is known as
Q.4
Biotic component of the environment does not include-
Q.5
Amoeba moves in water with the help of locomotory organs called
Q.6
Bacteria are (were) considered more as plants than animals because of the presence of
Q.7
Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of
Q.8
Mutation is
Q.9
Phycology is the branch of botany in which we study about
Q.10
The DNA bacterium consists of ring-like pieces known as the
Q.11
A cell wall material present only in blue green algae and bacteria is
Q.12
Liver fluke is parasite in the liver of
Q.13
They have also proved extremely useful in our quest of knowledge of outer space.
Q.14
Chemicals like ________ may be added to different foods or fruits to prevent or retard the growth microorganisms.
Q.15
Eutrophication is the result of
Q.16
Pollination by wind is called
Q.17
Nitrogenous Food is
Q.18
Which of the following crops would be preffered for sowing in order to enrich the soil with nitrogen?
Q.19
In ________ cells the genetic material is without any nuclear membrane covering and is directly submerged in the cytoplasm.
Q.20
Which of the following micro-organism causes diseases like polio and chicken pox?
Q.21
What kingdom does Amoeba belong to
Q.22
Bacteria were first discovered by
Q.23
Among the many substances manufactured commercially by means of ________ are acetic acid, acetone, butanol, lactic acid and several vitamins.
Q.24
Who discovered the insecticidal properties of DDT?
Q.25
There is no bacteria activity in which of the following process?
Q.26
Most bacteria reproduce by
Q.27
The temperature danger zone for food is
Q.28
Some species of which of the below kinds of organisms are employed as biopesticides?
1. Bacteria
2. Fungi
3. Flowering plants
Q.29
Golden rice has the highest quantity of
Q.30
Cyanobacteria are also known as
Q.31
Branch of biology which deals with the study processing and preservation of food is called
Q.32
Which bacteria cause the greatest harm in the food industry?
Q.33
Bacteria divides by
Q.34
In fungi asexual reproduction occurs mostly by
Q.35
In Pedology we study about
Q.36
Biological control is to check growth of
Q.37
________ reproduces by binary fission.
Q.38
The DNA of the bacterium is found present in a distinct nuclear region called
Q.39
Which of the following hormone is called the emergency hormone ?
Q.40
Which cells secrete hormones?
Q.41
Which one of following is smallest gland of body?
Q.42
Deficiency of which minerals causes goitre?
Q.43
A viral species is a group of viruses that has
Q.44
The litmus paper utilized in the chemical laboratories is made of :
Q.45
Important plant diseases like fire-blight and crown all are caused by
Q.46
Dried milk dried meat are examples of preservation by
Q.47
The biofertilizer used or the paddy crops is
Q.48
Which of the following plants have root nodules?
Q.49
Branch of agriculture concerned with the production of crops is
Q.50
In autotrophic bacteria, where is chlorophyll located?
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