1. In which group would you place a plant that produce spores and embryos but which lacks seeds and vascular tissues?
A. Fungus
B. Bryophyta
C. Pteridophyta
D. Gymnosperm
The plant which forms spores and embryos, but lack seeds and vascular tissues will be placed in the Bryophyta.
The plants belonging to this division are also called amphibians of the plant kingdom because these plant are not completely terrestrial. They do not have vascular tissues called xylem and phloem. They are mainly found in moist soil, bark, rocks and on the banks of the water bodies and depend upon water for sexual reproduction.
2. The vegetative body of a bryophyte represents the structure of
A. sporophyte
B. gametophyte
C. sporophyte or gametophyte
D. sporophyte and gametophyte
The vegetative body of a bryophyte represents the structure of gametophyte. For example, the main body of moss (Funaria) is gametophyte (means haploid, gamete bearing plant) and is found in two forms, i.e. juvenile form (creeping protonema) and adult form (leafy gametophore).
3. In the nature, which of the following is/are most likely to be found surviving on a surface without soil?
Select the correct answer by using the codes given below.
A. 1 and 4
B. Only 2
C. 2 and 3
D. 1, 3 and 4
Among the given options, lichen and moss are most likely to be found surviving on a surface without soil.
Lichens are generally found on substrate like rock, tree bark, soil, old farm equipments, etc. They can grow on wood, glass, metal, plastic and even cloth. They do not need roots for their survival.
Mosses are non-vascular plants and they do not possess true roots. They have a rhizoid multi-cell anchoring structure that is used to climb and grip other rock surface.
It reproduces by spores. The sporophyte are short lived and have long unbranched stems. They are mostly dependent on the gametophyte for water and nutrition.
4. Mycorrhiza is a
A. relationship between algae and fungi.
B. relationship between fungi and higher plant.
C. relationship between algae and higher plant.
D. None of the above
Mycorrhiza is the symbiotic relationship between fungi and the roots of higher plant such as Pinus. The fungi colonise the root system of the host plant and provide with increased water and mineral absorption capabilities while in return the plant provides carbohydrates formed from photosynthetic plant.
5. Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All of these belong to
A. angiosperms
B. gymnosperms
C. monocotyledons
D. dicotyledons
All the plants, mentioned in this question, i.e. pine, fir, spruce, cedar, larch and cypress belongs to the division of gymnosperms. The trees found in hilly areas have needle-like leaves to reduce the surface area, their thick cuticle and sunken stomata also helps to reduce water loss.
6. Which one of the following is a hermaphrodite plant?
A. Marchantia
B. Cycas
C. Pinus
D. Dates
Among the given options, Pinus is a hermaphrodite plant as in this both male and female cones or strobili are borne on the same tree.
However, Cycas is a gymnospermic plant, in this both male and female cones are borne on different plants.
Marchantia is a bryophyte, it is a unisexual plant where both male and female thallus grows separately.
Date is an angiospermic plant belonging to Arecaceae family. The male and female gametes are produced on different plants.
7. 'Chilgoza' is obtained from which of the following species?
A. Pine
B. Palm
C. Gycas
D. Cedar
Among the given species, 'chilgoza' is obtained from pine which is known as Pinus gerardiana. It is a gymnospermic plant found in the hilly areas like Kashmir and Himachal Pradesh.
These are rich in proteins and carbohydrates.
Chilgoza nuts are beneficial for diabetic patients and also for pregnant and lactating mothers.
8. Monocotyledonous plants show which of the following features?
A. Leaf shows reticulate venation
B. Tap root system
C. Flowers are trimerous
D. Perennial growth
Among the given features, monocotyledonous plants have trimerous flowers, i.e. floral parts are arranged in sets of three or its multiples.
The other features given above, i.e. reticulate venation and tap root system are the characteristic features of dicotyledonous plants.
Perennial growth (i.e. plants that persist for many growing season) is the feature that can be found in both dicot and monocots.
9. Among the given plants which one is a dicot?
A. Orchid
B. Onion
C. Lily
D. Mango
Among the given plants, mango is a dicot plant.
However, orchid, onion and lily are monocots as they have adventitious roots, one cotyledon in seeds and parallel venation in leaves.
10. Identify monocotyledonous plants from the given options.
A. Banyan
B. Potato
C. Sugarcane
D. Brinjal
Sugarcane is a monocotyledonous plant because its leaves have parallel venation.
Fibrous roots, parallel venation and single cotyledon are the characteristic features of monocotyledonous plants.
The other plants given in question, i.e. banyan, potato and brinjal are dicotyledonous plants. The seeds of these plants possess two cotyledons and their leaves have reticulate venation.
11. Quinine is a major drug for malaria from which of the following it is obtained?
A. Angiosperm plant
B. Bacteria
C. Yeast
D. Algae
Among the given options, quinine, a major drug for malaria fever is obtained from the bark of Cinchona tree. It is an angiospermic plant belonging to Rubiaceae family.
The bark of Chinchona contains alkaloids and have distinctive bitter flavour. It is the only economically practical source of quinine.
12. Find the wrong pair.
A. Labiatae - Lamiaceae
B. Palmae - Arecaceae
C. Compositae - Clusiaceae
D. Umbelliferae - Apiaceae
Pair (c) is incorrectly matched because Compositae/Asteraceae consists of species of flowering plants commonly referred to as the aster, daisy, composite or sunflower and was first described in the year 1740.
Pairs (a), (b) and (d) are correctly matched as Labiatae/Lamiaceae is a family of flowering plants commonly known as the mint/ sage family.
Palmae/Arecaceae are a botanical family of perennial plants in the monocot order-Arecales. Their growth form can be climbers, shrubs. Apiaceae/Umbelliferae is a family of mostly aromatic flowering plants, commonly known as the celery, carrot or parsley family.
13.Choose the correct group from the taxonomic point of view.
A. Hydra, sea fan, sea gooseberry
B. The mermaid's gloves, Venus' flower basket, the glass rope sponge
C. The boring sponge, Hydra, Planaria
D. Liver fluke, brain coral, the sea-fur
The correct group from the taxonomic point of view is the mermaid's gloves, the Venus' flower basket and the glass rope sponge as they all are the members of the phylum-Porifera.
In other options, organisms of different phylum are present. Therefore, they do not form a correct group from the taxonomic point of view such as
Hydra, sea fan, brain coral and the sea fur belong to phylum-Coelenterata.
Sea gooseberry is a member of phylum-Ctenophora.
The boring sponge is a poriferan. Planaria and liver fluke belong to phylum-Platyhelminthes.
14. Which of the following is of organic origin?
A. Coral
B. Emerald
C. Ruby
D. Topaz
Coral is of organic origin.
Corals are marine invertebrates. They belong to the phylum-Cnidaria.
These are found in compact colonies of many identical or similar individual polyps.
These corals have skeleton composed of calcium carbonate.
15. Which one of the following creatures have no blood, but respires?
A. Hydra
B. Cockroach
C. Earthworm
D. Fish
Hydra is an animal which has no blood, but respires.
This animal has tissue level of organisation. So, it lacks organ systems like respiratory system, circulatory system, etc. The individual cells of their body absorb 
dissolved in water and diffuse out produced directly.
Other animals, i.e. cockroaches, earthworm and fishes have organ system level of organisation.
© 2024 | The Tutors Academy | Website Conceptualised and Developed by Promotion Paradise
