MCQs for Class 11th and NEET on The Living World

MCQs for Class 11th and NEET on The Living World
Biology is the scientific study of living organisms and processes. There is an incredible diversity of living organisms around the globe. The distinction between inanimate substances and living beings was observed by early man. Some inanimate matter (wind, sea, fire, etc.) and some animals and plants were deified by early man. The emotion of awe or dread induced by all such forms of inanimate and live beings was a common feature. Living species, including humans, were first described much later in human history. Societies that had an anthropocentric approach to biology could only make limited advances in biological understanding.

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Role of Earthworm in soil Fertility, Agriculture and Ecosystems

Role of Earthworm in soil Fertility, Agriculture and Ecosystems
Agriculture is facing enormous demands as the world’s population and consumption grow. Food production must significantly increase to fulfil the world’s future food security and sustainability needs. However, the increase of cultivable land is extremely slow. Fertilizers must be used extensively due to the quickly growing population and slowly developing agricultural land. Chemical fertiliser use is a potential approach for enhancing agricultural yields. productivity. A huge rise in agricultural productivity has been recorded during the last century, owing primarily to fertilisation, which results in improved plant nutrient availability. Chemical fertilisers now contribute to roughly 40–60% of total crop output increases. Maize is one of the most important food crops on the planet, delivering at least 30% of the calories consumed by almost 4.5 billion people in 94 developing countries. It’s also used in animal feed and a variety of industrial goods, including the production of biofuels. Increased demand and supply gaps in global maize supplies have exacerbated the market, contributed to rising global maize prices, and even put millions of people at risk of food insecurity. To solve these issues and accelerate maize growth and yield, measures must be adopted.

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Earthworm: Classification, Taxonomy, Characteristics, Reproduction and Importance For class 11th and NEET

Reproduction in Earthworm
Although earthworms are hermaphroditic, they rarely self-mate (each individual possesses both male and female reproductive organs.). During mating, two worms share sperm. The clitellum, a prominent, girdle-like structure near the anterior end of the body, produces cocoons in which mature sperm and egg cells, as well as nourishing fluid, are deposited. The sperm cells within the cocoon fertilise the ova (eggs), which subsequently fall off the worm and land in or on the earth. After around 3 weeks, the eggs hatch, and each cocoon produces two to twenty baby worms on average.

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Honey bee: Classification, Characteristics, Castes, and Pest Control

Members of the colony of Bees (Caste system)
Honeybees are social insects that live in colonies with a well-organized system of labor division. There are three castes in each family: Queens (fertile females), Drones (males), and Labourers (sterile females). Each caste serves a distinct purpose in the colony. The Drones are males, the Workers are undeveloped females, and the Queen is a fully formed female. A good colony of bees in the summer will have between 50,000 and 60,000 workers, 1,000 or more drones, and one Queen.

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Mitochondrial Electron Transport System: Definition, Steps, and Reaction for Class 11th, and NEET

Bacterial electron transport and oxidative phosphorylation
Bacteria lack mitochondria, the electron transport system is located in the plasma membrane, and protons are translocated from the cytosol to the plasma membrane’s exterior. In aerobic bacteria, electrons travel from CoQ through cytochrome-based oxidoreductases to O2, which is then reduced to H2O, similar to the mitochondrial system.

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Teachers’ Role and Checklist for Supporting School Re-Opening Preparedness and COVID-19 Resurgences

The checklist is structured around protective measures connected to COVID-19-related WHO guidelines and is aligned with and builds on current COVID-19-related WHO guidelines.
1. Hand hygiene and respiratory etiquette
2)Physical separation
3) Mask use in schools
4) Environmental cleaning and ventilation
5) Following procedures for isolating all those experiencing symptoms.

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GLYCOLYSIS: Definition, Reactions, and 10 Steps for Class 10th and 11th

GLYCOLYSIS
This pathway consists of a series of non-oxygenated glucose breakdown processes that occur during respiration. Both aerobic and anaerobic respiration are affected by this. G.Embden, O.Meyerhof, and J K Parnas were the first to discover the EMP pathway. There are ten steps in all, all of which are catalyzed by separate enzymes. Steps 1, 3, and 10 are irreversible, but the remaining reactions are reversible. The above-mentioned three stages are thermodynamically infeasible. Because the cytosol contains enzymes that catalyze glycolysis, the cytosol is the glycolysis site. Glycolysis is the breakdown of glucose.
2 Pi + Glucose + 2 NAD+ + 2 ADP —————— 2 Pyruvate + 2 NADH + 2 ATP + 2H2O + 4H +

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CELLULAR RESPIRATION: Definition, Types, Combustion vs. Respiration, ATP and cells

Combustion vs. respiration
Combustion (the burning of coal and other fuels) is an oxidative process, but it is not the same as respiration. Oxidation/chemical burning is used in both procedures. Combustion, like the burning of fuels and firewood, is a non-enzymatic, uncontrolled process. Adenosine triphosphate (ATP) is not made. In an uncontrolled manner, energy is released as heat and light.
Respiration is a well-regulated biochemical activity that is conducted by enzymes and is a key feature of living cells. The energy is stored as a biomolecule (ATP), which releases it as needed by the cell.

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Carnivorous Plants: Trapping mechanisms Evolution, Distribution and Uses

Pither plant
Pitcher plants are carnivorous plants with a pitfall trap, a deep depression filled with liquid that they use to catch their prey. Pitfall traps have evolved widely as a result of epiascidiation, with selection pressure favoring more deeply cupped leaves throughout time. The pitcher trap originated in three eudicot lineages and one monocot branch separately, demonstrating convergent evolution. Some pitcher plant families (such as Nepenthaceae) are classified as clades dominated by flypaper traps, implying that some pitchers may have evolved from the common ancestors of today’s flypaper traps via mucilage loss.

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