Protozoans

Q.

Describe briefly the four major groups of Protozoa.

Q.

Are diatoms consumers or producers?

Q.

Which of the following is not the locomotory organ of protozoa?

1. Flagella

2. Pseudopodia

3. Parapodia

4. Cilia

Q.

Is there a contractile vacuole in plants?

Q. Explain the germ layer system of phylum porifera.

Q.

On the basis of contractile vacuole, give the name of phylum/class with one example.

Q. Marine protozoans do not have contractile vacuole because

1. their body cannot accommodate it
2. they are hypo-osmotic to their environment
3. they are isotonic to their environment
4. osmoregulation is done by the cell membrane

Q. what do you mean by ( leaves are arranged in acropetal order)?

Q. Very short answer type.
What is the main function of contractile vacuoles in protozoans?

Q. Movements by pseudopodia of Amoeba are due to change in

1. Pressure
2. Atmosphere
3. Viscosity
4. Temperature

Q. The parasite which causes malaria belongs to

1. chrysophytes
2. dinoflagellates
3. euglenoids
4. sporozoans

Q. Which of the following is a flagellated protozoan?

1. Amoeba
2. Entamoeba
3. Plasmodium
4. Trypanosoma

Q. Total parasites belong to protozoan group

1. Sporozoa
2. Ciliata
3. Sarcodina
4. Zooflagellata

Q. Trypanosoma gambiense is spread by

1. Aedes aegyptii
2. Culex fatigans
3. Stomoxys calcitrans
4. Glossina palpalis

Q. Which of the following is a sporozoan?

1. Eimeria
2. Monocystis
3. Plasmodium
4. All of the above

Q. The infective stages of Entamoeba, tetranucleated forms can survive for

1. 12 hours
2. 1 day
3. 6 day
4. 10 days

Q.

what does the words isogamous, anisogamous, and oogamous signifies? also what are zygospores?

Q. If a pond dries, Amoeba

1. Degenerates
2. Reproduces
3. Encysts
4. Behaviour is uncertain

Q.

The unique feature of a planarian worm is ____

1. Cephalisation

2. Hermaphroditism

3. Parasitism

4. Regeneration

Q. Which of the following is monogenetic parasite?

1. Entamoeba histolytica
2. Taenia solium
3. Wuchereria bancrofti
4. Plasmodium vivax

Q. Which among the following is monogenetic?

1. Plasmodium vivax
2. Trypanosoma gambiense
3. Taenia solium
4. Entamoeba histolytica

Q. The classification of protists is based upon

1. mode of reproduction
2. mode of nutrition
3. nature of cell wall
4. habitat

Q. Which of the following unicellular organisms has a macro-nucleus for trophic function and one or more micro-nuclei for reproduction?

1. Euglena
2. Amoeba
3. Paramecium
4. Trypansoma

Q. Causal organisms of sleeping sickness and kala-azar belong to which of the following groups of protozoan protists?

1. Amoeboid protozoans
2. Flagellated protozoans
3. Ciliated protozoans
4. Sporozoans

Q.

what are the characteristics of porifera

Q. Mammalian kidney resembles contractile vacuole of Amoeba in excretion of

1. Glucose
2. Excess water
3. Urea
4. Ammonia

Q.

In unfavourable conditions, Amoeba secretes a three-layered hard covering around itself, this phenomenon is scientifically called

1. encrustation
2. encapsulation
3. encystation
4. enclosement

Q. In sponges, totipotent cells (which can develop into other type of cells) are

1. Chromoeytes
2. Thesocytes
3. Archaeocytes
4. Collenocytes

Q. Type of nutrition present in Entamoeba is

1. Saprozoic
2. Parasitic
3. Autotrophic
4. None of the above

Q. give the special features of sexual reproduction of fungi .