Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

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

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

  1. Cnidoblasts and interstitial cells

  2. Glandular cells and endothelio-muscular nutritive cells

  3. Cnidoblasts and germ cells

  4. Interstitial cells and sensory cells
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.

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

From what kind of tree is turpentine obtained?

  1. From grasses only

  2. From most trees

  3. Most kinds of pine trees

  4. From oil wells
Reveal answer Fill a bubble to check yourself
C Correct answer
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).

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

The surface fibres of commercial use are obtained from

  1. Gossypium

  2. Agave

  3. Helianthus

  4. Solanum
Reveal answer Fill a bubble to check yourself
A Correct answer
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. 

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

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

  1. Tree fern

  2. Anigosperm

  3. Pine

  4. Daisy plant
Reveal answer Fill a bubble to check yourself
C Correct answer
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)