Find out the wrong statements
(A) Ulothrix and Spirogyra are filamentous forms
(B) Porphyra and Laminaria are fresh water algae
(C) Stored food is in the form of mannitol in Rhodophycean members
(D) Chlorella and Spirulina are unicellular algae
(A) and (B)
(B) and (C)
(A) and (C)
(A) and (D)
(A) and (D)
B.
(B) and (C)
Porphyra and haminaria are both fresh water algae stored food material in Rhodophycean algae is flouredian starch.
Pick out the statement that does not apply to viroids
Infectious agents smaller than viruses
Cause potato spindle tuber disease
Have free DNA
Lack protein coat
Lack protein coat
C.
Have free DNA
Viroid consist of just a short section of RNA, but without the protein coat typical of viruses.
Diplontic type of life cycle is seen in
(i) Fucus
(ii) Gymnosperms
(iii) Pteriodophytes
(iv) Bryophytes
(i) only
(i) and (iv) only
(i) and (iii) only
(iii) only
(iii) only
C.
(i) and (iii) only
Diplontic type of life cycle are observed in fucus and gymnosperms.
An analytical taxonomic aid for identifying plants and animals based on similarities and dissimilarities is called
Catalogue
Flora
Manual
Key
Key
D.
Key
Taxonomic key is a device that is used by biologists for identifying unknown organisms.
Keys are constructed so that the user is presented with series of choice about the characteristics of unknown organism. It is also used to identify organisms on the basis of similarities and dissimilarities.
Which of the following does not belong to Class -Basidiomycetes?
Agaricus
Trichoderma
Puccinia
Saccharomyces
Saccharomyces
E.
Ustilago
Among all the given options, option e is correct.
Basidiomycetes is a group of higher fungi that have septate hyphae and spores borne on a basidium.
Trichoderma and Saccharomyces does not belong Class- Basidiomycetes. Trichoderma belongs to Family- Hypocreaaceae and Saccharomyces belongs to Class- Ascomycetes.
Which of these is wrong about diatoms?
Microscopic
Planktonic
Overlapping shells
Spores with 2 flagella
Spores with 2 flagella
D.
Spores with 2 flagella
Diatoms spore are specialised cells called auxospores, it acts as dormat stage in life cycle of diatoms also referred as resting spores.
Match Column I with Column II and choose the right option
Column I | Column II |
A. Amoeba | i. Has flagella for locomotion |
B. Paramecium | ii. Moves with the help of cilia |
C. Trypanosoma | iii. Puts out pseudopodia for locomotion |
A - iii; B - i; C - ii
A - iii; B - ii; C - i
A - ii; B - i; C - iii
A - ii; B - i; C - iii
A - ii; B - i; C - iii
B.
A - iii; B - ii; C - i
Amoeba locomotory organ is pseudopodia, Paramecium have cilia and Trypanosoma moves with the help of flagella.
I. Unicellular Protists found in fresh water
II. Possess a protein-rich outer layer called pellicle
III. Have two flagella
IV. Possess pigments identical to those in higher plants.
These characters apply to genus
Alternaria
Nostoc
Chlorella
Euglena
Euglena
D.
Euglena
Euglena are single celled protistans that live mostly in fresh water. They have outer covering called pellicle, they also possess, long tail called flagella, which they use to more through water. They also contain chloroplasts and produce their own food through photosynthesis.
Archaebacteria and Eubactaria have been included under the kingdom
Monera
Plantae
Fungi
Protista
Protista
A.
Monera
Archaebacteria and Eubacteria are the most ancient living forms and are classified under Kingdom- Monera.
Which of the following statements is wrong about bryophytes?
Bryophytes are also called amphibian of the plant kingdom.
The gametophyte is the main plant body
Sexual reproduction takes place in the presence of water
Sporophyte is not free-living but attached to the photosynthesis gametophyte
Sporophyte is not free-living but attached to the photosynthesis gametophyte
E.
Zygote develops into a gametophyte
Among all the given statements, statement V is wrong about bryophytes.
In bryophytes, zygote develops into sporophyte.
Severity: Notice
Message: Undefined variable: flex_subject_id
Filename: features/flexipad.php
Line Number: 348
Backtrace:
File: /var/www/html/public_html/application/views/features/flexipad.php
Line: 348
Function: _error_handler
File: /var/www/html/public_html/application/views/previous_year_papers/paper.php
Line: 163
Function: view
File: /var/www/html/public_html/application/controllers/Study.php
Line: 2131
Function: view
File: /var/www/html/public_html/index.php
Line: 315
Function: require_once