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
B.
only asexual stages are known
Deuteromycetes are commonly known as imperfect fungi because only the asexual or vegetative stages of these fungi are known. The deuteromycetes reproduce only by asexual spores known as conidia. The mycelium is septate and branched. Some members are saprophytes or parasites while a large number of them are decomposers of litter and help in mineral cycling. Some examples are Alternaria, Colletotriclmm and Trichoderma.
Mycorrhiza is correctly described as
symbiosis of algae and fungi
relation of ants with the stem of some trees
parasitic association between roots and some fungi
symbiotic relationship between fungi and roots of some higher plants
Identify the accurate explanation of mesosome. It is
a specialised structure of prokaryotic cell formed by extension of plasma membrane into the cytoplasm
the middle layer of the prokaryotic cell wall
the organelle of eukaryotic cell which helps in lipid synthesis
the middle layer of eukaryotic cell wall.
Yeast is not included in protozoans but in fungi because
it has chlorophyll
it shows saprotrophic mode of nutrition
it has eukaryotic organisation
cell wall is made up of cellulose and reserve food material as starch
Identify the labelled part in the given figure and select the correct option.
A - Heterocyst, B - Mucilaginous sheath
A - Mucilaginous sheath, B - Heterocyst
A - Heterocyst, B - Capsid
A - Pseudopodia, B - Mucilaginous sheath
Which 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)
The microscope usually used for seeing living cells or tissues is
compound microscope
electron micrscope
phase contrast microscope
light microscope.
