BIOLOGY M.C.Q (1 Marks)

Choose the correct answer from the options given below:

Select the correct answer from the options given below

$(i)$ In animalia, the mode of nutrition is autotrophic.

$(ii)$ In monera, the nuclear membrane is present.

$(iii)$ In protista, the cell type is prokaryotic.

$(iv)$ In plantae, all organisms have cell wall. Of the above statements, which one is correct?

Match the terms given in column-$I$ with their examples given in column-$II$ and choose the correct option

$a$ - animal, $b$- viroids, $c$-bacteria $d$ - virus, $e$ - algae.

$(i)$ It causes potato spindle tuber disease.

$(ii)$ It has free $RNA.$

$(iii)$ Molecular weight of $RNA$ is low. Identify the infections agent.

$Statement-2$ : Penicillium is an unicellular fungus.

$Statement-3$ : Albugo is a parasitic fungus on mustard.

$(i)$ Reproduction in fungi can take place by vegetative means - fragmentation and budding.

$(ii)$ Fusion of two nuclei is called plasmogamy.

$(iii)$ Fusion of protoplasms between two motile or nonmotile gametes is called karyogamy.

$(iv)$ Meiosis in zygote results in diploid spores.

$(i)$ Some members are saprophytes or parasites while a large number of them are decomposers of litter and help in mineral cycling.

$(ii)$ They reproduce only by asexual spores known as conidia.

$(iii)$ Mycelium is septate and branched.

$(iv)$ Alternaria, Colletotrichum and Trichoderma are examples of this class. Which of the following class of fungi is being described by the above statements?

$(i)$ They are commonly known as imperfect fungi because only the asexual or vegetative phases of these fungi are known.

$(ii)$ They grow in soil, on logs and tree stumps and

$(iii)$ Live inside plant bodies as parasites, e.g., rusts and smuts

$(iv)$ Some common members are Agaricus, Ustilago and Puccinia.

$(i)$ Neurospora, which is used in biochemical and genetic work is a member of this class.

$(ii)$ They are mostly multicellular, e.g., Yeast, or rarely unicellular, e.g., Penicillium.

$(iii)$ They are saprophytic, decomposers, parasitic or coprophilous.

$(iv)$ Some examples are Aspergillus, Claviceps and Neurospora.

$(i)$ They are found in aquatic habitats and on decaying wood in moist and damp places.

$(ii)$ Mycelium is aseptate and coenocytic.

$(iii)$ Asexual reproduction takes place by zoospores (motile) or by aplanospores (non-motile).

$(iv)$ Some common examples are Mucor, Rhizopus and Albugo.

$(i)$ It includes unicellular as well as multicellular fungi.

$(ii)$ In multicellular forms, hyphae are branched and septate.

$(iii)$ Conidiophore produces conidia (spores) exogenously in chain.

$(iv)$ Sexual spores are ascospores produced endogenously in chain.

$(v)$ Fruiting body is called ascocarp. Identify the correct class of fungi which have all the above given characteristics.

$i$. Fruiting bodies

$ii$. Nature of habitat

$iii$. Morphology of mycelium

$iv$. Mode of spore formation