Environmental Science: Plant Growth and Pesticides Quiz

An unwanted plant is commonly referred to as a weed, which is a plant growing where it is not wanted.

Auxin is the plant hormone responsible for promoting growth in plants by controlling cell elongation, cell division, and differentiation. Cytokinin is another plant hormone that stimulates cell division and is involved in growth and development. Gibberellin is a plant hormone that promotes stem elongation, seed germination, and flowering. Abscisic acid is a plant hormone that inhibits growth and promotes seed dormancy and drought tolerance.

Micronutrients are essential elements required by plants in very small quantities for normal growth and development. Macronutrients are needed in larger quantities, trace elements are present in small amounts but not as essential as micronutrients, and superfoods are nutrient-rich foods considered to be especially beneficial for health and well-being.

Macronutrients are nutrients that are required by plants in relatively large amounts to support their growth and development, such as nitrogen, phosphorus, and potassium. Micronutrients are needed in smaller quantities, trace elements are essential in very small amounts, and vitamins are organic compounds that are important for various metabolic processes.

A pesticide that persists for a long period of time is often referred to as a 'hard pesticide' due to its ability to remain active in the environment for an extended duration.

Biomagnification is the process by which substances such as toxins accumulate in organisms as they move up the food chain. This can have harmful effects on top predators. Bioaccumulation refers to the accumulation of substances in an organism without necessarily moving up the food chain. Biodegradation is the process by which organic substances are broken down by microorganisms. Bioremediation is the process of using organisms to remove or neutralize contaminants in the environment.

Rodenticide specifically targets rodents, while insecticide is used to kill insects, herbicide targets plants, and fungicide targets fungi.

Soft pesticides are designed to be less harmful to the environment as they break down quickly after application. Hard pesticides are more resistant to breakdown, persistent pesticides last longer in the environment, and toxic pesticides have harmful effects on living organisms.

Chlorinated hydrocarbons are a class of pesticides that contain carbon, hydrogen, and chlorine atoms. Nitrogen-based, sulfur-containing, and fluorinated pesticides are different classes of compounds with different chemical compositions.

Organophosphates are a class of pesticides that work by interfering with the normal function of neurotransmitters in the nervous system. Carbamates, pyrethroids, and neonicotinoids are other classes of pesticides with different mechanisms of action.

Fungicides are specifically designed to target and eliminate fungi, while herbicides target plants, insecticides target insects, and rodenticides target rodents.

Biocide is a broad-spectrum chemical that can kill a wide range of living organisms, while pesticides, herbicides, and fungicides are more specialized in targeting specific types of pests, weeds, and fungi respectively.

Pesticides are chemicals designed to control or kill pests. Herbicides specifically target plants, while insecticides target insects, fungicides target fungi, and rodenticides target rodents.

Pheromones are chemicals that animals produce to communicate with each other, while hormones, enzymes, and neurotransmitters serve different functions in the body.

Macronutrients are essential nutrients required by plants in relatively large amounts for their growth and development.

Micronutrients are essential nutrients required in small amounts for maintaining normal physiological functions. Boron, zinc, and manganese fall under the category of micronutrients.