Sporulation

Q. Under unfavourable conditions Amoeba withdraws its pseudopodia and secretes a three-layered hard covering or cyst around itself. This phenomenon is termed as __________.

1. encystation
2. sporulation
3. fragmentation
4. none of the above

Q.

What type of asexual reproduction is seen in fungi and algae?

Q. I read in Slime moulds, that in under unfavourable conditions the plasmodium differentiates and forms fruiting bodies bearing spores at the tips . these spores contain true walls.
What is a true wall?

Q.

Give some examples of green algae.

Q.

What do you mean by spore and Sporangia?

Q. Assertion: Amoeba reproduce by binary fission during unfavourable conditions
Reason: During binary fission the Amoeba withdraws its pseudopodia and forms a cyst around itself.

1. Both assertion and reason are true but reason is not the correct explanation of assertion.
2. Both assertion and reason are true and reason is the correct explanation of assertion.
3. The assertion is true but reason is false.
4. Both assertion and reason are false.

Q.

Penicillium produces chain of non-motile conidia endogenously during asexual reproduction

1. True

2. False

Q. During which of the following process cyst formation occurs

1. budding
2. binary fission
3. fragmentation
4. sporulation

Q. Choose the correct option from the following

1. Yeast - binary fission
2. Paramecium - budding
3. Chlamydomonas - zoospores
4. Penicillium - fragmentation

Q.

Explain the term Hypnospore.

Q.

Filamentous algae Spirogyra reproduce by

1. budding

2. fragmentation

3. spore formation

4. binary fission

Q.

Organism benefits if it reproduces through spores. Explain how?

Q.

One of the following does not reproduce by spore formation method:

1. Rhizopus Fungus

2. Penicillium Fungus

3. Yeast Fungus

4. Mucor Fungus

Q. Refer the given figures and select the correct option.

1. It is a type of parthenogenesis
2. Both b and c
3. It is a type of asexual reproduction
4. The offsprings can also be called as clones

Q.

Sporulation is exhibited by

1. multicellular sponges

2. unicellular protists like algae

3. multicellular cnidarian like Hydra and Obelia

4. multicellular chordates

Q.

What are some commonly known forms of basidiomycetes?

Q. Spore itself is an Asexual unicellular reproductive unit . then why we say sexual spores and asexual spores in case of fungi what is the meaning behind sexual spores and asexual spores

Q. Chlamydomonas reproduces by

1. Binary fission
2. Zoospore formation
3. Budding
4. Akinetes

Q.

Sporulation is exhibited by

1. Multicellular chordates

2. Unicellular protists like algae

3. Multicellular cnidarian like Hydra and Obelia

4. Multicellular sponges

Q. Under unfavourable conditions Amoeba withdraws its pseudopodia and secretes a three-layered hard covering or cyst around itself. This phenomenon is termed as __________.

1. fragmentation
2. encystation
3. sporulation
4. none of the above

Q. What are zoospores? Give two suitable examples.

Q. Deuteromycetes are called ‘fungi imperfecti’ because they

1. have a septate mycelium
2. exhibit autotrophic nutrition
3. are not reported to exhibit sexual reproduction
4. none of the above

Q. Which of the following algae exhibit isogamy?

1. Spirogyra
2. Ulothrix
3. Ectocarpus
4. All of the above

Q. are the single celled reproductive units of some plants, fungi, bacteria and algae.

1. Buds
2. Spores
3. Seeds
4. zygotes

Q. Spores are produced by

1. Fungi
2. Algae
3. All of the above
4. Bacteria
   

Q. Oogamy is exhibited only by red algae.

1. True
2. False

Q.

What do Zoospores do?

Q. Motile zoospores are produced by

1. Chlamydomonas
2. Penicillium
3. Bacteria
4. Amoeba

Q. Name an organism which reproduces by spore formation. List three conditions favourable for spores to germinate and grow.

Q. Assertion :Zoospores in Chlamydomonas are frequently formed in the night during favourable conditions. Reason: Zoospores swim for a certain time and then grow into a new plant.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect