About Plants

🎓 Class 5 📚 EVS ⚡ Hard

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Code: Class5-SCI-02112026
Class: Class 5
Subject: EVS
Difficulty

About Plants

Question #2756
Which of the following is a primary characteristic that distinguishes plants from most animals, enabling them to produce their own food?
a.
b.
c.
d.
Question #2757
A potted plant is kept in a sealed glass jar with sufficient sunlight but no extra carbon dioxide is provided. Over time, its growth rate decreases significantly. Which basic requirement for plant growth is becoming limited?
a.
b.
c.
d.
Question #2758
Which type of plant has a weak, thin, green stem, usually lives for only one or two seasons, and does not grow very tall?
a.
b.
c.
d.
Question #2759
A cucumber plant produces long vines that spread along the ground. Based on this characteristic, how would you classify a cucumber plant?
a.
b.
c.
d.
Question #2760
A plant has a woody stem with many branches arising from near the ground, making it appear bushy. It is taller than a herb but shorter than a large tree. Which category does it most likely belong to?
a.
b.
c.
d.
Question #2761
If the roots of a plant are damaged, what two critical functions would be immediately affected, potentially leading to the plant's death?
a.
b.
c.
d.
Question #2762
A botanist examines a plant and observes a single, thick main root growing deep into the soil with smaller side roots branching off it. This type of root system is best described as a:
a.
b.
c.
d.
Question #2763
Apart from holding the plant upright, which other crucial function does the stem perform that is vital for the entire plant's survival?
a.
b.
c.
d.
Question #2764
Imagine a leaf without its main vein (midrib) and smaller veins. What process would be severely hampered within the leaf?
a.
b.
c.
d.
Question #2765
Chlorophyll is essential for plants because it:
a.
b.
c.
d.
Question #2766
If a plant's stomata were to remain closed all the time, which of these processes would be most negatively affected?
a.
b.
c.
d.
Question #2767
During photosynthesis, plants take in carbon dioxide and release oxygen. Which of the following is required for this process but is NOT taken from the air?
a.
b.
c.
d.
Question #2768
Why are green plants often referred to as 'producers' in an ecosystem?
a.
b.
c.
d.
Question #2769
A scientist places a plant in an airtight chamber and measures the gases. During the day, they observe a decrease in carbon dioxide and an increase in oxygen. This indicates the plant is primarily performing:
a.
b.
c.
d.
Question #2770
A gardener notices tiny water droplets on the tips of grass blades early in the morning, even without rain. This phenomenon is most likely due to:
a.
b.
c.
d.
Question #2771
When do plants perform the process of respiration?
a.
b.
c.
d.
Question #2772
Which part of a flower is typically brightly colored and scented to attract insects for pollination?
a.
b.
c.
d.
Question #2773
If a flower's stigma is dry and does not have a sticky surface, what critical reproductive process will be significantly hindered?
a.
b.
c.
d.
Question #2774
Which of the following describes the correct path of pollen from one flower to another during insect pollination?
a.
b.
c.
d.
Question #2775
What is the primary function of a fruit in the life cycle of a plant?
a.
b.
c.
d.
Question #2776
A mango is known for having a single large seed. Which of these fruits also typically contains only one seed?
a.
b.
c.
d.
Question #2777
Which of the following conditions is LEAST essential for a seed to germinate successfully?
a.
b.
c.
d.
Question #2778
During the process of seed germination, which part typically emerges first from the seed and grows downwards into the soil?
a.
b.
c.
d.
Question #2779
The coconut fruit is adapted to be dispersed by water. Which feature primarily allows it to float and travel across oceans?
a.
b.
c.
d.
Question #2780
Which type of seed dispersal is observed in plants like peas and beans, where the fruit bursts open to scatter seeds?
a.
b.
c.
d.
Question #2781
Cactus plants have spines instead of broad leaves. This adaptation primarily helps them to:
a.
b.
c.
d.
Question #2782
Trees like pine and fir, found in mountainous regions, often have cone-shaped structures and needle-like leaves. How does this adaptation benefit them in their cold habitat?
a.
b.
c.
d.
Question #2783
Which of the following plants is well-known for its medicinal properties and is often used to treat common colds and coughs in traditional medicine?
a.
b.
c.
d.
Question #2784
Fibre-producing plants like cotton and jute are crucial for manufacturing which of these products?
a.
b.
c.
d.
Question #2785
Deforestation, the widespread cutting down of trees, primarily contributes to which major environmental problem?
a.
b.
c.
d.
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