List of top Environmental Sciences Questions asked in CUET (PG)

What is the advantage of immobilisation of enzymes and whole cell for industrial production of products?

Match the following:

List IList II
A. Biofilm --- IV. A layer of organic matter and microorganisms formed by the attachment and proliferation of bacteria
B. Glycocalyx --- I. Bacterial extracellular polymer that creates a visible slimy layer on solid surface
C. Red tides --- III. Algal bloom composed of red pigmented dinoflagellates
D. Coliform bacteria --- II. Gram negative non spore forming Bacilli usually found in the intestine		IV. A layer of organic matter and microorganisms formed by the attachment and proliferation of bacteria
I. Bacterial extracellular polymer that creates a visible slimy layer on solid surface
III. Algal bloom composed of red pigmented dinoflagellates
II. Gram negative non spore forming Bacilli usually found in the intestine

How can the ecological footprint of the entire human population be estimated?
Detritus food chain mainly consists of:
When alien species are introduced, some of them turn invasive and cause decline or extinction of indigenous species. When a species becomes extinct, the plant and animal species associated with it in an obligatory way also become extinct. Which of the following is most appropriate?

Match the structures with their functions in Cnidaria:

List IList II
A. Cnidoblast --- I. Used for anchorage, defence and for the capture of prey
B. Polyps --- IV. Produce Medusae asexually
C. Medusae --- II. Used to form the polyps sexually
D. Hypostome --- III. Single opening for gastrovascular cavity		I. Used for anchorage, defence and for the capture of prey
IV. Produce Medusae asexually
II. Used to form the polyps sexually
III. Single opening for gastrovascular cavity

How can the ecological footprint of the entire human population be estimated?
The viruses that possess oncogenes are mainly responsible for causing:
Which of the following moderate the functions of the respiratory rhythm to suit the demands of the body tissue?
Which of the following is/are found in Leucocytes of human blood? A. Neutrophils B. Eosinophils C. Basophils D. Lymphocytes E. Monocytes
Which one of the following characters is not shared by both Selaginella and Cycas?
The Calvin cycle incorporates CO$_2$ molecule, one at a time by attaching it to ribulose bisphosphate. This step is catalyzed by which of the following:
Arrange the following steps of photosynthesis in C$_4$ plant in a correct sequence: A. Conversion of Oxaloacetate to Malate B. Malate releases CO$_2$ C. Adding of CO$_2$ to phosphoenolpyruvate to form Oxaloacetate D. CO$_2$ reassimilated into organic material by Rubisco in the Calvin cycle E. Export of malate to bundle sheath cells through plasmodesmata
Which one of the following event can be considered highly evolved according to the theory of progressive sterilization of sporogenous tissue and sporophyte?
The acceptance or rejection of the pollen by a pistil is mediated by:
The acceptance or rejection of the pollen by a pistil is mediated by:

Match the structures with their taxa:

List IList II
A. Absence of Archegonia --- I. Pinus
B. Antherozoids with Cilia --- II. Gnetum
C. Resin duct --- III. Taxus
D. Aril --- IV. Cycas		I. Pinus
II. Gnetum
III. Taxus
IV. Cycas

Which of the following is responsible for peat formation in Bog System?
According to Telome theory, the two sister branches of a telome showed unequal growth, and smaller branch developed into the leaf. This phenomenon is called:
Which of the following feature indicates the hydrophytic nature of Equisetum?
The APG IV system of plant classification is based on:
Arrange the following steps of DNA replication in E. coli in a correct sequence: A. Formation of Okazaki fragments which are of 1000 to 2000 nucleotides B. Helicase unwinds the helix with the help of topoisomerase like DNA Gyrase C. DNA polymerase I or RNase H removes the RNA primer and polymerase I synthesizes complementary DNA to fill the gap D. A special RNA polymerase ‘primase' synthesizes a short RNA primer complementary to DNA E. Fragments are joined by the enzyme DNA ligase
Which of the following are the regions of transcription unit? A. A promoter B. The structural gene C. Introns D. tRNA E. A Terminator
Which of the following is not true for cell membrane?
Facilitated Diffusion across a cell membrane refers to: