Multiple Choice QuestionsWhich of the following microbes is correctly paired with its function?
Aspergillus niger- Production of lactic acid
Trichoderma polysporum- Lowers blood cholesterol
Saccharomyces cerevisiae- Production of citric acid
Methanogenic bacteria- Gobar gas formation
Match Column - I with Column - II and select the correct option from the codes given below
| Column I | Column II |
| A. Chlorophyta | (i) Equisetum |
| B. Lycopsida | (ii) Chara |
| C. Phaeophyta | (iii) Selaginella |
| D. Sphenopsida | (iv) Ectocarpus |
A - (ii), B - (iii), C - (iv), D - (i)
A - (iv), B - (i), C - (ii), D - (iii)
A - (ii), B - (iii), C - (i), D - (iv)
A - (iv), B - (i), C - (iii), D - (ii)
A.
A - (ii), B - (iii), C - (iv), D - (i)
Chara is a genus of charophyte green algae in the family Characeae. They are multicellular and resemble land plants as they have stem and leaf like structures.
Selaginella is the sole genus of vascular plants in the family Selagginellaceae. It consists of scaled leaves bearing a ligule and by having spores of two types.
Ectocarpus is a genus of filamentous brown alga that is a model organism for the genomics of muticellularity.
Sphenopsida is a class of vascular plants with a fossil. Commonly known as horsetails. Found mainly in wet areas.
Deuteromycetes are known as fungi imperfecti because
their zygote undergoes meroblastic and holoblastic cleavage
only asexual stages are known
they have aseptate myceliun
they are autotrophic
The microscope usually used for seeing living cells or tissues is
compound microscope
electron micrscope
phase contrast microscope
light microscope.
Protista differs from monera in having
cell wall
autotrophic nutrition
flagella
nuclear membrane
Thermococcus, Methanococcus and Methanobacterium exemplify
bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria
bacteria that contain a cytoskeleton and ribosomes
archaebacteria that contains protein homologous to eukaryotic core histones
archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled
Assertion: Protoplasmic continuity is maintained in perforated septum.
Reason: Usually a small pore remains in the centre of the septum.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Assertion: The primary protenema of moss by death and decay of cells may break into fragments.
Reason: Each fragment gives rise to leafy gametophyte.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Assertion : Neurospora is commonly called water mould.
Reason : It belongs to basidomycetes fungi.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false
Switch
