Hss Dragger Golden Test (Class:11th) (Subject: Botany)
Government Higher Secondary School Dragger
Zone Khansahib Budgam
Questions and Answers
- 1.
Roots developed from parts other than radicle
- A.
Tap Roots
- B.
Adventitious Roots
- C.
Fibrous Roots
- D.
None of the Above
Correct Answer
B. Adventitious RootsExplanation
Adventitious roots are roots that develop from parts of the plant other than the radicle, which is the embryonic root. These roots can arise from stems, leaves, or even other roots. They provide additional support and absorption for the plant. Tap roots, on the other hand, are a type of root system where a single large root grows deep into the soil, while fibrous roots are a type of root system where numerous small roots spread out in all directions. Therefore, the correct answer is adventitious roots.Rate this question:
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- 2.
Venation is the term used for
- A.
Veins
- B.
Flowers
- C.
Leaves
- D.
All the above
Correct Answer
A. VeinsExplanation
Venation refers to the arrangement of veins in leaves. It describes the pattern and structure of the veins, including their branching and distribution throughout the leaf. Veins are the vascular tissues that transport water, nutrients, and sugars throughout the plant, providing support and nourishment to the leaves. While flowers may also have veins, the term "venation" specifically refers to leaves. Therefore, the correct answer is veins.Rate this question:
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- 3.
Phyllotaxy is the arrangement of
- A.
Flower buds
- B.
Veins
- C.
Leaves
- D.
Branches
Correct Answer
C. LeavesExplanation
Phyllotaxy refers to the arrangement of leaves on a plant stem. It describes the pattern and positioning of leaves along the stem, including their size, shape, and angle of attachment. The arrangement of leaves is crucial for optimizing light exposure and efficient utilization of space for photosynthesis. Different plants exhibit different phyllotaxy patterns, such as alternate, opposite, whorled, or spiral arrangements. Understanding phyllotaxy helps in identifying plant species and studying their growth patterns.Rate this question:
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- 4.
Edible part of pomegranate is
- A.
Epicarp
- B.
Mesocarp
- C.
Endocarp
- D.
Testa
Correct Answer
D. TestaExplanation
The edible part of a pomegranate is the testa. The testa is the outermost layer of the seed, which is typically red and has a slightly bitter taste. It is the part that is usually consumed, either by eating the seeds directly or by using them in various culinary preparations such as salads, desserts, or juices. The epicarp, mesocarp, and endocarp are the other layers of the pomegranate fruit, but they are not typically eaten.Rate this question:
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- 5.
Thick roots hanging down from Banyan tree are
- A.
Sijt Roots
- B.
Proproots
- C.
Haustria
- D.
None of the above
Correct Answer
B. ProprootsExplanation
The correct answer is "Prop roots." Prop roots are thick roots that grow from the branches or trunk of a tree and extend downwards, providing additional support to the tree. They are commonly found in banyan trees, which have a unique growth habit where their branches send down aerial roots that eventually become prop roots. These prop roots not only provide stability to the tree but also help in absorbing water and nutrients from the ground.Rate this question:
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- 6.
Corm is modification of
- A.
Root
- B.
Stem
- C.
Leaf
- D.
Bud
Correct Answer
B. StemExplanation
A corm is a modified stem that is found in certain plants. It is an underground storage organ that is used for storing nutrients and energy. Unlike a root, which is responsible for anchoring the plant and absorbing water and nutrients, a corm is involved in the production of new shoots and leaves. Similarly, a leaf is responsible for photosynthesis and bud is an undeveloped shoot. Therefore, the correct answer is stem, as a corm is a modified stem.Rate this question:
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- 7.
Velamen tissue occurs in
- A.
Parasitic Roots
- B.
Epiphytic Roots
- C.
Breathing Roots
- D.
None of the above
Correct Answer
B. Epiphytic RootsExplanation
Epiphytic roots are aerial roots that grow above the ground and are found in plants that live as epiphytes, meaning they grow on other plants for support. These roots are exposed to the air and can absorb moisture and nutrients from the surrounding environment. Velamen tissue is a specialized tissue found in epiphytic roots that helps in water absorption and storage. Therefore, the correct answer is "Epiphytic Roots" because velamen tissue occurs in these types of roots.Rate this question:
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- 8.
Placentation found in pea
- A.
Basal
- B.
Apical
- C.
Marginal
- D.
None of the above
Correct Answer
C. MarginalExplanation
The correct answer is "Marginal" because in pea plants, the placentation is marginal, which means that the ovules are attached to the margin or edge of the ovary. This arrangement allows for efficient fertilization and seed development as the pollen can easily reach the ovules. This type of placentation is common in many legume plants, including peas.Rate this question:
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- 9.
Replum occurs in ovary of
- A.
Sunflower
- B.
Pea
- C.
Mustard
- D.
Lemon
Correct Answer
C. MustardExplanation
Replum is a specialized structure that occurs in the ovary of the Mustard plant. It is a ridge-like tissue that runs along the inner wall of the ovary and helps in the formation of the fruit. The replum acts as a support structure for the developing seeds and aids in their dispersal. Sunflower, Pea, and Lemon do not have replum in their ovaries, making Mustard the correct answer.Rate this question:
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- 10.
In Hypogynous flower ovary is
- A.
Superior
- B.
Inferior
- C.
Half inferior
- D.
None of the above
Correct Answer
A. SuperiorExplanation
In a hypogynous flower, the ovary is positioned superiorly. This means that the ovary is located above the attachment point of the other floral parts, such as the sepals, petals, and stamens. This superior ovary position is a characteristic feature of many flowering plants and allows for efficient pollination and fertilization.Rate this question:
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- 11.
Growing point in root is
- A.
Apical
- B.
Subapical
- C.
Absent
- D.
None of the Above
Correct Answer
B. SubapicalExplanation
The growing point in the root refers to the region where cell division and growth occur. In this case, the correct answer is "Subapical" because the growing point in the root is located just below the tip of the root, known as the apical meristem. This region is responsible for the elongation of the root and the formation of new cells.Rate this question:
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- 12.
Stem branches are
- A.
Endogenous
- B.
Exogenous
- C.
Both
- D.
None of the above
Correct Answer
B. ExogenousExplanation
Stem branches are exogenous, meaning they originate from the outside of the stem. This is in contrast to endogenous branches, which originate from within the stem. Stem branches play a crucial role in the growth and development of plants, as they contribute to the formation of new shoots, leaves, and flowers. Therefore, the correct answer is Exogenous.Rate this question:
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- 13.
Spindle shaped roots are found in
- A.
Napiform
- B.
Fusiform
- C.
Coniform
- D.
None of the above
Correct Answer
B. FusiformExplanation
Fusiform roots are spindle-shaped roots that are wider in the middle and taper towards both ends. They are found in certain plants and serve various functions such as anchoring the plant, storing nutrients, and absorbing water. Napiform roots are swollen and turnip-shaped, coniform roots are cone-shaped, and none of the above options describe spindle-shaped roots. Therefore, the correct answer is fusiform.Rate this question:
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- 14.
Which plant has parasitic roots
- A.
Cynadone
- B.
Cuscuta
- C.
Banyan
- D.
Maize
Correct Answer
B. CuscutaExplanation
Cuscuta is the correct answer because it is a parasitic plant that lacks chlorophyll and relies on other plants for nutrients. It has specialized roots called haustoria that penetrate the host plant's tissues to extract water and nutrients. This parasitic behavior allows Cuscuta to survive and grow without the need for photosynthesis.Rate this question:
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- 15.
Unbranched stem with swollen with nodes and internodes is called
- A.
Caudex
- B.
Culm
- C.
Scape
- D.
Tuber
Correct Answer
B. CulmExplanation
A culm is an unbranched stem with swollen nodes and internodes. This type of stem is commonly found in grasses, bamboo, and other similar plants. The swollen nodes provide support and strength to the stem, allowing it to grow tall and upright. The internodes, on the other hand, are the sections between the nodes where the stem elongates. This structural adaptation helps the culm withstand wind and other environmental factors. Therefore, culm is the correct answer in this context.Rate this question:
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- 16.
Horizontal green branches which are rooted at intervals
- A.
Trailer
- B.
Runner
- C.
Sucker
- D.
None of the aboe
Correct Answer
B. RunnerExplanation
The given options are Trailer, Runner, Sucker, and None of the above. Among these options, the correct answer is Runner. This can be inferred from the clue "Horizontal green branches which are rooted at intervals." Runners are horizontal stems that grow along the ground and produce roots at regular intervals. Therefore, the correct answer is Runner.Rate this question:
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- 17.
Ginger is an example of
- A.
Corm
- B.
Tuber
- C.
Rhizome
- D.
Bulb
Correct Answer
C. RhizomeExplanation
Ginger is an example of a rhizome because it is a horizontal underground stem that grows parallel to the surface of the soil. Rhizomes have nodes and internodes, from which roots and shoots emerge. Ginger's rhizome is the part that is commonly used in cooking and medicine, as it contains the plant's flavor and medicinal properties.Rate this question:
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- 18.
Wiry structures used for climbing
- A.
Spines
- B.
Thorns
- C.
Bristles
- D.
None of the above
Correct Answer
D. None of the aboveExplanation
The given options, spines, thorns, and bristles, are all examples of structures used for defense and protection rather than climbing. Therefore, none of the above options are correct for wiry structures used for climbing.Rate this question:
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- 19.
The leaves which fall early
- A.
Deciduous
- B.
Caducous
- C.
Persistant
- D.
Evergreen
Correct Answer
B. CaducousExplanation
Caducous is the correct answer because it refers to the characteristic of plants or trees that shed their leaves early in the season, typically before winter. This term is often used to describe deciduous plants, which lose their leaves annually. The other options, such as persistent and evergreen, do not accurately describe plants that shed their leaves early.Rate this question:
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- 20.
Sickle shaped expanded leaf petiole is called
- A.
Phyloclade
- B.
Cladode
- C.
Phylode
- D.
None of the above
Correct Answer
C. PhylodeExplanation
A sickle-shaped expanded leaf petiole is called a phylode. This structure is found in certain plants, such as Acacia species, where the petiole expands and takes on the form and function of a leaf. This adaptation allows the plant to reduce water loss in arid environments while still being able to carry out photosynthesis. Phylodes are often mistaken for leaves due to their appearance, but they lack a lamina, which is the flat, blade-like part of a typical leaf. Instead, the expanded petiole of a phylode performs the functions of both a petiole and a leaf.Rate this question:
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- 21.
Which is the insectivorous plant
- A.
Dionea
- B.
Drosera
- C.
Nepenthes
- D.
All the Above
Correct Answer
D. All the AboveExplanation
The correct answer is "All the Above" because all three options mentioned - Dionea, Drosera, and Nepenthes - are examples of insectivorous plants. Insectivorous plants are those that obtain nutrients by trapping and digesting insects. Dionea, also known as Venus Flytrap, has leaves with sensitive trigger hairs that close when an insect touches them. Drosera, also known as Sundew, has sticky tentacles on its leaves that trap insects. Nepenthes, also known as Pitcher Plant, has pitcher-shaped leaves that contain digestive enzymes to break down trapped insects. Therefore, all three plants mentioned are insectivorous.Rate this question:
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- 22.
Pendulus inflorescence is
- A.
Catkin
- B.
Spike
- C.
Spadix
- D.
Raceme
Correct Answer
A. CatkinExplanation
A catkin is a type of pendulous inflorescence, characterized by a long, slender, and flexible axis with unisexual flowers attached directly to it. The flowers are usually without petals and have prominent stamens or pistils. Catkins are common in many tree species, such as willows and birches. They hang down from the branches and release pollen into the air, relying on the wind for pollination. Therefore, the correct answer is catkin.Rate this question:
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- 23.
The inflorescence of Fig is
- A.
Cyathium
- B.
Coryms
- C.
Hypanthium
- D.
None of the Above
Correct Answer
C. HypanthiumExplanation
The inflorescence of Fig is hypanthium. Hypanthium is a floral structure where the base of the sepals, petals, and stamens are fused together to form a cup-like or tube-like structure. In the case of the Fig, the flowers are enclosed within a hollow receptacle called a syconium, which is a type of hypanthium. Therefore, the correct answer is Hypanthium.Rate this question:
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- 24.
A flower which can be divided into two equal halves in any plane
- A.
Actinomorphic
- B.
Zygomorphic
- C.
Assymetrical
- D.
All the Above
Correct Answer
A. ActinomorphicExplanation
Actinomorphic refers to a flower that can be divided into two equal halves in any plane. This means that the flower has radial symmetry, with its parts arranged symmetrically around a central axis. In contrast, zygomorphic flowers can only be divided into equal halves in one specific plane, while asymmetrical flowers have irregular shapes and cannot be divided into equal halves in any plane. Therefore, the correct answer is Actinomorphic.Rate this question:
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- 25.
In pea the stamens are
- A.
Monodelphous
- B.
Didelphous
- C.
Polydelphous
- D.
None of the Above
Correct Answer
B. DidelphousExplanation
The correct answer is Didelphous. In pea plants, the stamens are didelphous, which means they are arranged in two sets. This arrangement is characterized by the fusion of the filaments of the stamens into two separate groups. This is in contrast to monodelphous, where the filaments are fused into a single group, and polydelphous, where the filaments are fused into multiple groups. Therefore, didelphous is the correct term to describe the arrangement of stamens in pea plants.Rate this question:
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- 26.
Which is Flase fruit
- A.
Lemon
- B.
Litchi
- C.
Apple
- D.
Orange
Correct Answer
C. AppleExplanation
Apple is a false fruit because it is derived from the receptacle or base of the flower, rather than the ovary. The true fruit of an apple is the core, while the fleshy part that we eat is actually the enlarged receptacle. In contrast, lemon, litchi, and orange are all true fruits, as they develop from the ovary of the flower.Rate this question:
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- 27.
Potato belongs to which family
- A.
Fabaceae
- B.
Solanaceae
- C.
Lileaceae
- D.
None of the Above
Correct Answer
B. SolanaceaeExplanation
Potato belongs to the Solanaceae family. This family includes various plants such as tomatoes, peppers, and eggplants. Solanaceae is also known as the nightshade family. Potatoes are classified under this family due to their similar characteristics and genetic makeup. They share common traits such as the production of alkaloids and the formation of tubers. Therefore, Solanaceae is the correct family for potatoes.Rate this question:
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- 28.
Scutelum is the name given to
- A.
Leaf
- B.
Cotyledon
- C.
Fruit
- D.
None of the Above
Correct Answer
B. CotyledonExplanation
The correct answer is "Cotyledon". Scutelum is a term used in botany to refer to a specialized structure found in the embryo of certain plants, particularly in the monocotyledons. It is a thickened region of the cotyledon that functions as an absorptive organ during seed germination. The scutelum is responsible for the transfer of nutrients from the endosperm to the developing embryo.Rate this question:
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- 29.
Arrangement of sepals and petals in bud is called
- A.
Placentation
- B.
Aestivation
- C.
Venation
- D.
None of the Above
Correct Answer
B. AestivationExplanation
Aestivation refers to the arrangement of sepals and petals in a bud. It describes how the sepals or petals are arranged with respect to each other, whether they are overlapping, twisted, or arranged in a specific pattern. Placentation refers to the arrangement of ovules within the ovary of a flower. Venation refers to the pattern of veins in leaves. Since the question specifically mentions the arrangement of sepals and petals, the correct answer is Aestivation.Rate this question:
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- 30.
Edible part in coconut is
- A.
Epicarp
- B.
Endosperm
- C.
Mesocarp
- D.
All the above
Correct Answer
B. EndospermExplanation
The edible part in a coconut is the endosperm. The endosperm is the white, fleshy part inside the coconut that is rich in nutrients and provides the main source of food for the developing embryo. The epicarp refers to the outermost layer of the coconut, the mesocarp is the middle layer, and both of these parts are not typically consumed. Therefore, the correct answer is endosperm.Rate this question:
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