The image below displays fungi that resemble threads and are found close to some plants. The roots of the plant are encircled and pierced by the fungi. It aids the plant's ability to absorb water and minerals from the soil. The fungi receive carbohydrates from the plant. An organism known as a parasite inhabits or grows on the body of another organism. It takes nutrients and energy from the host organism. The parasite does not provide its host with anything in return. Is the group of fungi in the image a kind of parasite? Explain your answer.
Important Questions on Nutrition in Plants
Nilam took a destarched potted plant and set up an experiment as shown in the figure. She left the plant in sunlight for a few hours and then tested leaves A and B for starch. Leaf A did not give a starch test, while leaf B showed the presence of starch. What is proved by this experiment?
Identify the yellow thread-like structures twining around the stem, branches, and leaves of some trees. It neither has leaves nor chlorophyll. How do they survive? From where do they get nutrition?
3 to 4 leaves of the same plant were covered with black paper without removing them from the plant. The way the black paper was cut and fixed to the leaves is shown in the figure. Two days later, these leaves were collected. They had their green colour removed and were placed in an iodine solution. In the pattern depicted in the illustration, the leaves turn blue-black. Can you tell by looking at the figure whether starch is present or not?
Identify the arrow A, B and C from the given diagram and explain their roles in the photosynthesis process.
The sun provides energy for all living things. Rita wrote two statements to explain the above fact.
Statement1: All autotrophs prepare their own food in the presence of sunlight.
Statement 2: _____
What of the following should be Statement 2?
Sunita wants to know if a red colour plant can produce its own food o not. For four days, she keeps a red plant in the sun. Which other colour of plant should Sunita use for her research in order to contrast with the red plant? Explain your response.
