NCERT Solutions Class 11 chapter 13 Biology deals with photosynthesis in higher plants. These NCERT solutions are created by our team of experts in the field of education. These solutions are formulated according to the prescribed guidelines and they ensure that the students understand the concept with ease. NCERT solutions act as a crucial tool for students during exams as they impart information effectively and efficiently. Students don’t have to feel overwhelmed by the content as it is prepared, keeping in mind the cognitive capacity of their target audience. What this means is, the Class 11 students can understand the contents easily, jargons are explained in a simple language and diagrams are rendered in a way that students can easily recreate them.
Photosynthesis is a process where the organism uses the light energy and other required components (such as carbon dioxide) to create food. Organisms that use photosynthesis are termed as autotrophs, meaning “self-nourishing”. This process was started billions of years ago when the earth had just microscopic organisms that were similar to today’s blue-green bacteria or cyanobacteria. Back then, the earth didn’t have any oxygen and it was these organisms that kickstarted the rise of oxygen levels in the atmosphere. Eventually, photosynthesis was adopted by more complex organisms over the course of time. Find out how modern day plants use photosynthesis.
Photosynthesis is a process where organisms produce their own food with the aid of light energy. Most plants and some microorganisms use this process to produce their own food. They are usually the primary producers on the food chain. This process is very vital for the survival of everything on planet earth. A testament to this can be seen in the fossils roughly 65 million years ago. The dinosaurs were wiped out due to an asteroid that impacted the earth and sent a huge amount of dust and other materials that blocked out the sunlight for millenia.
Without sunlight, the plants began to die out and it was followed by the animals that fed on these plants. Eventually, the food web was affected and it led to a mass extinction. Lack of food coupled with drop in global temperatures (due to the large amounts of gas and dust) plunged the planet into an ice age. This ensured the extinction of dinosaurs and the rise of mammals. Therefore, photosynthesis is a very important process.
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