Importance Of Plants E-ws (Ab)

Botany is the study of plants, including their structure, growth, reproduction, metabolism, and classification. It involves the understanding of various aspects of plants such as their physiology, ecology, and genetics. Botanists study plants in order to gain knowledge about their functions, interactions with the environment, and their importance in various ecosystems. They also play a crucial role in plant conservation and the development of new plant-based products. Therefore, botany is the correct answer as it specifically refers to the scientific study of plants.

A root crop refers to a type of plant that has edible roots which are high in carbohydrates and are commonly consumed by humans as food. This statement is true as root crops, such as potatoes, carrots, and beets, are widely recognized for their nutritional value and are extensively cultivated for their root portions. These crops provide a significant source of carbohydrates in many diets and are an essential staple in various cuisines around the world.

A nut is a dry, hard fruit that does not split open. Unlike other fruits, nuts have a hard outer shell that protects the seed inside. They are typically small and have a high fat content. Nuts are commonly used as a snack or in cooking and baking due to their rich flavor and nutritional value.

A fruit is a part of a flowering plant that usually contains seeds. It is the mature ovary of a flower, which develops after pollination and fertilization. The purpose of a fruit is to protect and disperse the seeds. Fruits come in various shapes, sizes, and colors, and can be consumed by animals or humans, aiding in seed dispersal.

A vegetable is a food derived from the leaves, stems, seeds, or roots of nonwoody plants. Vegetables are typically consumed as part of a balanced diet due to their high nutritional value. They provide essential vitamins, minerals, and fiber. Examples of vegetables include broccoli, carrots, spinach, and potatoes.

Black pepper is considered a spice because it is derived from the seeds of a pepper plant and is used to enhance the flavor of food. It is commonly used in cooking and is known for its strong and pungent taste. Therefore, the correct answer is that black pepper is a spice.

Rayon is a synthetic fiber made from processed wood fibers. It is produced by treating cellulose, which is extracted from wood pulp, with chemicals to create a viscous solution. This solution is then forced through tiny holes called spinnerets to form fibers, which are then solidified and spun into yarn. The use of processed wood fibers in the production of rayon allows for a versatile and cost-effective fabric that resembles natural fibers like cotton and silk.

A rice is classified as a cereal. Cereal refers to grains that are cultivated for food purposes, and rice falls under this category. Rice is a staple food for a large portion of the world's population and is commonly consumed in many different forms. It is rich in carbohydrates and is a good source of energy. Therefore, it is classified as a cereal.

A weed is an undesirable plant that can compete with crop plants or native plant species for resources such as sunlight, water, and nutrients. Weeds can grow rapidly and spread quickly, which can result in reduced yields for crops or the displacement of native plants. Managing and controlling weeds is important in agriculture and conservation to ensure the health and productivity of desired plant species.

Hay fever is an allergic reaction that is commonly caused by pollen. It leads to symptoms such as sneezing, a runny nose, and watery eyes.

Early farmers selected wheat plants whose stalks did not break easily in the wind. This trait would have been advantageous because wheat plants with strong stalks would have been less likely to be damaged or destroyed by strong winds. By selecting these plants, farmers ensured that their wheat crops would be more resilient and have a higher chance of survival, leading to successful cultivation.

Potatoes are classified as a root crop because they are the swollen underground stems of the potato plant. They grow underground in the soil and are typically harvested by digging them up from the ground. Root crops are plants that store their nutrients in their roots, and potatoes are a prime example of this. They are not classified as a cereal, fruit, herb, legume, nut, spice, or vegetable, as they do not fit into those categories based on their botanical characteristics.

Agriculture is the correct answer because it refers to the practice of growing plants or raising animals for human use. It encompasses various activities such as crop cultivation, livestock farming, and the production of food, fiber, and other agricultural products. Agriculture plays a crucial role in providing food security, supporting the economy, and sustaining livelihoods worldwide.

Cereal is a grass that contains grains. The term "cereal" is used to refer to various types of edible grains, such as wheat, rice, oats, and corn. These grains are harvested and processed to produce food products like bread, pasta, and breakfast cereals. The plural form "cereals" is also correct, as it refers to multiple types of grains.

A legume is a member of the pea family that bears protein-rich seeds in pods. Legumes include plants such as peas, beans, lentils, and peanuts. They are known for their high protein content and are often used as a source of protein in vegetarian and vegan diets. Legumes are also beneficial for the environment as they have the ability to fix nitrogen in the soil, improving soil fertility.

Legumes are valuable crops because they have the ability to fix atmospheric nitrogen through a symbiotic relationship with nitrogen-fixing bacteria in their root nodules. This process increases the nitrogen content of the soil, making it more fertile and beneficial for other plants to grow. This is why legumes are often used in crop rotation systems as a natural way to replenish soil nutrients and improve overall soil health.

Foxglove is the correct answer because it is a plant that is commonly used in medicine. It contains a compound called digitalis, which is used to treat heart conditions. The other plants listed - Cinchona tree, Coconut, and White Willow - are all known for their medicinal properties. The Cinchona tree is used to produce quinine, which is used to treat malaria. Coconut has various health benefits and is used in traditional medicine. White Willow contains salicin, which is similar to aspirin and is used as a pain reliever. Therefore, Foxglove is the only plant in the list that is not used for its medicinal value.

Celery is classified as a vegetable because it is a plant that is primarily cultivated for its edible stalks. It is commonly used in cooking and eaten raw in salads, making it a versatile and nutritious vegetable option.

Nutmeg is classified as a spice because it is a dried seed found inside the fruit of the nutmeg tree. It is commonly used as a flavoring agent in both sweet and savory dishes.

A pecan is classified as a nut.

Lima bean is classified as a legume. Legumes are a type of plant that belong to the family Fabaceae and are characterized by their ability to fix nitrogen in the soil. Lima beans, along with other legumes such as peas and lentils, are known for their high protein content and are commonly used in cooking and as a source of nutrition. They are not classified as a cereal, fruit, herb, nut, root crop, spice, or vegetable.

Oregano is classified as an herb. It is a culinary herb that is commonly used in Mediterranean and Mexican cuisines for its strong and aromatic flavor. Oregano is also known for its medicinal properties and is used in traditional medicine for its anti-inflammatory and antimicrobial effects.

Plant ecology is the study of the interactions between plants and their environment. It focuses on understanding how plants adapt to their surroundings, how they interact with other organisms, and how they influence and are influenced by abiotic factors such as climate, soil, and water availability. Plant ecologists study the distribution and abundance of plant species, as well as the processes that shape plant communities and ecosystems. This field of study helps us understand the dynamics and functioning of plant ecosystems and provides insights into conservation and management practices.

Plants recycle phosphorus as one of the inorganic nutrients. Phosphorus is an essential element for plant growth and development. It is a key component of nucleic acids, ATP (adenosine triphosphate), and phospholipids. Plants obtain phosphorus from the soil in the form of phosphate ions. They absorb it through their roots and use it to carry out various metabolic processes. Through the process of nutrient cycling, plants take up phosphorus from the soil, incorporate it into their tissues, and release it back into the environment when they die and decompose. This allows phosphorus to be reused by other organisms in the ecosystem.

All of the plants listed, including American mistletoe, Holly, Poison Ivy, and Poison Oak, are harmful when eaten or touched. These plants contain toxins or irritants that can cause allergic reactions, skin rashes, or other adverse effects when they come into contact with the skin or are ingested. Therefore, all of the options provided are correct answers in terms of plants that are harmful when eaten or touched.

Most of the problems associated with hay fever are caused by airborne pollen. Hay fever, also known as allergic rhinitis, is an allergic reaction to pollen from trees, grasses, and weeds. When a person with hay fever inhales pollen, their immune system overreacts and releases histamine, leading to symptoms such as sneezing, itching, and a runny or stuffy nose. Therefore, airborne pollen is the main culprit behind hay fever symptoms.

Large flowers are not likely to cause hay fever because they are typically pollinated by insects, not wind. Hay fever is caused by an allergic reaction to pollen, which is usually produced by plants that are wind-pollinated, such as grasses and trees. Insects-pollinated plants, like large flowers, have heavier and stickier pollen that is less likely to become airborne and cause allergies. Therefore, large flowers are not a common trigger for hay fever.

Plants actually participate in the cycling of carbon dioxide and oxygen on Earth through a process called photosynthesis, not cellular respiration. During photosynthesis, plants take in carbon dioxide from the atmosphere and release oxygen as a byproduct. This process is essential for maintaining the balance of gases in the atmosphere and is a major contributor to the production of oxygen on Earth. Cellular respiration, on the other hand, is the process by which plants (and other organisms) use oxygen to convert stored energy into a usable form.

The near elimination of American Chestnut trees in the early 1900s was caused by Chestnut Blight. This fungal disease, caused by the pathogen Cryphonectria parasitica, was accidentally introduced to North America through imported Asian chestnut trees. The blight spread rapidly, leading to the death of millions of American Chestnut trees, which were once abundant in forests across the eastern United States. This devastating disease significantly impacted the ecosystem and the timber industry, as the American Chestnut was an important and valuable tree species.

A cantaloupe is classified as a fruit because it is the mature ovary of a flowering plant and contains seeds. Fruits are typically sweet or savory and are derived from the reproductive parts of plants. Cantaloupes have a sweet and juicy flesh, making them a popular choice for consumption as a refreshing snack or in salads and desserts.