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Practice MCQ Questions and answers on Biology-GK

Learn and practice General Knowledge questions and answers on Biology with very easy and understandable explanations. GK questions are very helpful different type of competitive exams. Page-2 section-1

Each section contains 100 MCQs on Biology .
11
Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with
Discuss
Answer & Solution
Answer: Option C
Solution:
Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with only conifers.
12
One of the following is not a function of bones.
Discuss
Answer & Solution
Answer: Option C
Solution:
Secretion of hormones for calcium regulation in blood and bones is not a function of a bone.
13
Plants absorb most part of water needed by them through their
Discuss
Answer & Solution
Answer: Option C
Solution:
Root hair cells are specialized epidermal cells that greatly increase the surface area of roots. The function of root hairs is to collect water and mineral nutrients present in the soil and take this solution up through the roots to the rest of the plant.
14
Photo-oxidation is
Discuss
Answer & Solution
Answer: Option D
Solution:
Photo-oxidation involves all of the above process.
15
Process of cell division can take place by
Discuss
Answer & Solution
Answer: Option C
Solution:
Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus.
16
Most highly intelligent mammals are
Discuss
Answer & Solution
Answer: Option B
Solution:
Dolphins are the most highly intelligent mammals.
17
Plant development is influenced by
Discuss
Answer & Solution
Answer: Option D
Solution:
Plant development is influenced by quality, quantity and duration of light. Plants cannot get too much light, but they can get too much of the heat energy that comes with the light.
18
Prokaryotic cells lack
Discuss
Answer & Solution
Answer: Option D
Solution:
Prokaryotic cells lack nucleolus, nuclear membrane and membrane bound by organelles.
19
Photosynthesis takes place faster in
Discuss
Answer & Solution
Answer: Option C
Solution:
Photosynthesis takes place faster in red light.

Photosynthesis is the process by which green plants and some other organisms convert light energy into chemical energy. It primarily occurs in chloroplasts, where pigments such as chlorophyll absorb light. While chlorophyll absorbs light from various parts of the light spectrum, it is most efficient in the red and blue parts of the spectrum. Red light is absorbed more effectively than other colors, making it the most favorable for photosynthesis.

So, the correct option is: Option C: red light

Photosynthesis takes place faster in red light.
20
Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by
Discuss
Answer & Solution
Answer: Option B
Solution:
Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by Robert Brown.