Tag: biology

Questions Related to biology

Which of the following cells are present in the endoderm of Hydra, but not in epidermis ?

biology cell structure animal cell plant and animal cell cell structure and micro-organisms

  1. Cnidoblasts and interstitial cells

  2. Glandular cells and endothelio-muscular nutritive cells

  3. Cnidoblasts and germ cells

  4. Interstitial cells and sensory cells

Show answer
Correct Option: A
Explanation:

  • Stinging cells or nematocyst are present on the outer region of the body as small swellings and are hence a part of the epidermis.
  •  The germ cells are also a part of the ectodermal epithelium.
So, the correct answer is 'Stinging cells and germ cells'.

From what kind of tree is turpentine obtained?

biology plants in daily life uses of gymnosperms introduction to gymnosperms importance of plants

  1. From grasses only

  2. From most trees

  3. Most kinds of pine trees

  4. From oil wells

Show answer
Correct Option: C
Explanation:

Turpentine oil is made from the resin of certain pine trees. It is used as medicine. Don't confuse turpentine oil with gum turpentine, which is the resin. Turpentine oil is applied to the skin for joint pain, muscle pain, nerve pain, and toothaches. So, the correct option is "C" (Most kinds of pine trees).

The surface fibres of commercial use are obtained from

biology plants in daily life uses of gymnosperms introduction to gymnosperms importance of plants

  1. Gossypium

  2. Agave

  3. Helianthus

  4. Solanum

Show answer
Correct Option: A
Explanation:

Surface fibers are fibers found on the covering of seeds, leaves, or fruits; cotton cloth is made from seed hairs covering the surface of cotton seeds. Gossypium is a genus  of 39-40 species of shrubs in the mallow family, Malvaceae. It is native to the tropical and subtropical regions of both the 'Old World'  and the 'New World'. The cotton plants, sources of commercial cotton fabric, are included in this genus. 

Chilgozas, the common dry fruit eaten in many Indian families, are the seeds of a

biology plants in daily life uses of gymnosperms introduction to gymnosperms importance of plants

  1. Tree fern

  2. Anigosperm

  3. Pine

  4. Daisy plant

Show answer
Correct Option: C
Explanation:

Chilgoza pine (Pinus gerardiana) is well known for its edible pine nuts, rich in carbohydrates and protein . The seeds are locally called and marketed as "chilgoza".

So, the correct option is C. (pine)

Sago-grains are chiefly obtained from

biology plants in daily life uses of gymnosperms introduction to gymnosperms importance of plants

  1. Ginkgo biloba

  2. Pinus gerardiana

  3. Cycas revoluta

  4. Cedrus deodar

Show answer
Correct Option: C

A. Heterospory
B. Seed formation
C.Fertilization process
What is appropriate for gymnosperms?

biology plants in daily life uses of gymnosperms introduction to gymnosperms importance of plants

  1. AB true C false

  2. BC true A false

  3. ABC all true

  4. ABC all false

Show answer
Correct Option: C
Explanation:

Heterospory, seed formation and fertilization are found in gymnosperm. 

A gymnosperm grown for its appearance is

biology plants in daily life uses of gymnosperms introduction to gymnosperms importance of plants

  1. Pinus

  2. Picea

  3. Araucaria

  4. Cedrus

Show answer
Correct Option: C

Sago comes from

biology plants in daily life uses of gymnosperms introduction to gymnosperms importance of plants

  1. Calamus rotung

  2. Metroxylon rumphii

  3. Areca catechu

  4. Phoenix dactylifera

Show answer
Correct Option: B
Explanation:

Monospory means having tetranucleate or simple spores while tetraspory is the formation of four haploid spores after meiosis.

So the correct option is B.

Rosin and turpentine are obtained from

biology plants in daily life uses of gymnosperms introduction to gymnosperms importance of plants

  1. Cycas

  2. Pinus

  3. Cedrus

  4. Abies

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Correct Option: B

Which is obtained from gymnosperm plant?

biology plants in daily life uses of gymnosperms introduction to gymnosperms importance of plants

  1. Cashewnut

  2. Almond

  3. Chilgoza

  4. Pistachio

Show answer
Correct Option: C