Which of the following statements regarding Euglenoids is not true?
1. | Instead of a cell wall, they have a lipid rich pellicle |
2. | They have two flagella, a short and a long one |
3. | They are photosynthetic in the presence of sunlight but behave like a heterotroph when deprived of sunlight |
4. | Pigments of Euglenoids are identical to those present in higher plants |
Match each item in Column I with one in Column II and select your answer from the codes given below:
Column I | Column II | ||
A. | Diatoms | a. | Protein-rich layer of pellicle |
B. | Dinoflagellates | b. | Cell wall embedded with silica |
C. | Euglenoids | c. | Spores with true walls |
D. | Slime moulds | d. | Cellulose plates in the cell wall |
Codes:
A | B | C | D | |
1. | b | a | c | d |
2. | b | d | a | c |
3. | b | c | a | d |
4. | b | a | d | c |
…….of dinoflagellates have …..flagella …..lie in a furrow between wall plates
(1) All, 2, both
(2) Many, 3, trasverse falgella
(3) Most, 2, both
(4) All, 3, longitudinal flagella
Pellicle is found in
(1) Euglenoids
(2) Dinoflagellates
(3) Diatoms
(4) Eubacteria
Euglenoids are not
(1) Mostly marine
(2) Have pellicle
(3) Lack cell wall
(4) Flexible body
Euglenoids do not possess this feature-
(1) Always photosynthetic
(2) Pigments like higher plants
(3) Pellicle provides flexibility
(4) Found in stagnant water
Euglenoids can be/have
(1) Predator
(2) With cell wall
(3) Polysaccharide rich protein layer
(4) All are marine organisms
Which one of the following organisms is not an example of eukaryotic cells?
1. Paramoecium caudatum
2. Escherichia coli
3. Euglena viridis
4. Amoeba proteus
Column I | Column II | ||
A. | Amoeboid | P | They have a cavity (gullet) that opens to the outside of the cell surface into which water laden food is steered |
B. | Flagellated | Q | Marine forms have silica shells on their surface |
C. | Ciliated | R | The parasitic forms cause diseases such as sleeping sickness |
D. | Sporozoans | S | They have an infectious spore-like stage in their life cycles |
A | B | C | D | |
1. | R | Q | P | S |
2. | Q | R | P | S |
3. | Q | R | S | P |
4. | S | Q | R | p |