Nervous System in Other Animals

Q. Which of the following algae produce Carrageenan?

Q. Which of the following is not true for red algae?

1. Phycoerythrin, chlorophyll a and d pigments are present
2. Algin and carageenan are found in their cell wall
3. Gelidium and Gracilaria are economically important
4. Floridean starch is the stored food

Q. In which animal, nerve cell is present but brain is absent?

1. Sponge
2. Earthworm
3. Cockroach
4. Hydra

Q. Floridean starch is the reserve food in

1. myxophyceae
2. rhodophyceae
3. chlorophyceae
4. phaeophyceae

Q. Polysiphonia exhibits an intermediate stage in its life cycle known as :

1. Gametophyte
2. Sporophyte
3. Thallophyte
4. Carposporophyte

Q. Which of the following pairs is incorrectly matched?

1. Rhodophyceae – Stored food is mannitol
2. Phaeophyceae – Cell wall is made up of cellulose and algin
3. Chlorophyceae – Major pigments are chlorophyll a and b
4. Chlorophyceae – Cell wall is made up of cellulose

Q. don't have a specialised area of cells or tissues for control and coordination.

1. Sponges
2. Annelids
3. Cnidarians
4. Ctenophora

Q. Which among the following options hold true for the nervous system of chordates?

1. A brain is present, dorsal nerve cord, highly developed receptors
2. A brain is present, fused ganglia, ventral nerve cord
3. No brain, fused ganglia, tympanic membrane
   
4. No brain, nerve net, modified neurons

Q. Which of the following algal species is the source of agar?

1. Sargassum
2. Chlorella
3. Laminaria
4. Gracilaria

Q. The forebrain of a frog consists of

1. unpaired diencephalon
2. foramen magnum
3. optic lobes
4. medulla oblongata

Q. Which among the following do the members of Rhodophyceae possess?

Q. Phycobilins occur in

1. Brown algae
2. Green algae
3. Blue-green algae
4. Red algae

Q. Which among the following options hold true for the nervous system of chordates?

1. A brain is present, dorsal nerve cord, highly developed receptors
2. A brain is present, fused ganglia, ventral nerve cord
3. No brain, fused ganglia, tympanic membrane
   
4. No brain, nerve net, modified neurons

Q. Agar-agar is obtained from algae belonging to the class:

1. Phaeophyceae
2. Chlorophyceae
3. Rhodophyceae
4. Bacillariophyceae

Q. Stored food of red algae is similar to:

1. Glycogen and chitin
2. Chitin and mannitol
3. Mannitol and glycogen
4. Amylopectin and glycogen

Q. Commercially used carrageenan comes from algae

1. that store starch in pyrenoids
2. that store food as mannitol
3. that have fucoxanthin pigment
4. that have phycoerythrin pigment

Q. Floridean starch is stored food material of:

1. Fucus
2. Spirogyra
3. Porphyra
4. Ectocarpus

Q. Match the algae with their reserve food.

1. Floridean starch
2. Rhodophyceae
3. Chlorophyceae
4. Mannitol
5. Starch
6. Phaeophyceae

Q. Which among the following do the members of Rhodophyceae possess?

1. Floridean starch to store food
2. All the above
3. Vegetative, asexual and sexual forms of reproduction
4. r-phycoerythrin in their body

Q. Floridean starch is found in:

1. Phaeophyceae
2. Myxophyceae
3. Chlorophyceae
4. Rhodophyceae

Q.

_____________ are made up of a collection of cells that function independently without any coordination with each other.

1. Protozoans

2. Cnidarians

3. Annelids

4. Sponges

Q. A research scholar once collected certain alga and found that its cells contained chlorophyll-a, chlorophyll-b and phycoerythrin. The alga belongs to

1. Bacillariophyceae
2. Rhodophyceae
3. Chlorophyceae
4. Cyanophyceae

Q. Solid culture medium for cell culture is obtained from:

1. Blue green algae
2. Red algae
3. Brown algae
4. Green algae