Pinus belongs to the Pinaceae family. Any tree from this group is called a Pine. They’re usually tall trees, not often shrubs. Also, they live for a long time. The Pinus group can be divided into yellow pines, white pines, and lacebark pines.
Pinus MCQ for NEET
Ques 1. This is how we can characterize the secondary wood of Pinus
1. vessels are present
2. resin ducts are absent
3. resin ducts are present
4. resin cells are present
Answer: resin ducts are present
Ques 2. Mesophyll tissue of Pinus needle is composed of
1. Spongy parenchyma
2. Armed parenchyma
3. Chlorenchyma
4. Transfusion tissue
Answer: Spongy parenchyma
Ques 3. This is the best explanation for the pyramidal shape (excurrent) of Pinus (branches producing the appearance of a tall cone)
1. influence of auxins on the development of stem tips
2. water efficiently transported from ground to leaves
3. adapting to wind pollination
4. competition for sunlight amongst adjoining trees
Answer: adapting to wind pollination
Ques 4. “Chilgoza” a popular dry fruit is a production of
1. Pinus gerardiana
2. Pinus sylvestris
3. Pinus roxburghii
4. Pinus monophylla
Answer: Pinus gerardiana
Ques 5. Meroblastic kind of embryo development occurs in
1. Pinus
2. Ferns
3. Selaginella
4. All of these
Answer: Pinus
Ques 6. Formation of non-motile male gametes is observed in
1. Fern
2. Pinus
3. Funaria
4. Selaginella
Answer: Pinus
Ques 7. These possess needle-like foliage leaves
1. Pinus
2. Fern
3. Selaginella
4. Mosses
Answer: Pinus
Ques 8. This is a correct statement about Pinus
1. forms deciduous trees in temperate areas
2. exhibits xerophytic character and grows in deserts
3. cosmopolitan in distribution
4. is of economic value
Answer: is of economic value
Ques 9. Male gametophytes of Pinus is
1. 2 celled
2. 4 celled
3. 6 celled
4. 10 celled
Answer: 4 celled
Ques 10. Winged seeds are present in
1. Pinus
2. Cycas
3. Papaver species
4. None of these
Answer: Pinus
Answer: Transformation
