Question

Задание1. Объясните роль выделения (экскреций) в жизни растений и животных. _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Задания2. 1. Каково значение выделения воды, кислорода, углекислого газа у растений? ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 2 Назовите органы выделения растений. А____________________________________________________________________________ B____________________________________________________________________________ C____________________________________________________________________________ D____________________________________________________________________________ ​

Answer 1

Ответ:

2.1

испорение

но не точно

Объяснение:

..............

Answer 2

Role of Excretion in the Life of Plants and Animals

Excretion plays a crucial role in the life of both plants and animals. It is the process by which waste products, toxins, and excess substances are removed from the body. Here's a detailed explanation of the role of excretion in the life of plants and animals:

Plants: Plants excrete waste products through various mechanisms, including transpiration, guttation, and the shedding of leaves. These processes help maintain the overall health and functioning of plants. Here are some key points about the role of excretion in plants:

1. Transpiration: Transpiration is the process by which plants lose water vapor through small openings called stomata on their leaves. This process not only helps in the regulation of water balance but also aids in the removal of excess water and certain waste products from the plant's tissues.

2. Guttation: Guttation is the process by which plants excrete liquid droplets from specialized structures called hydathodes. These droplets contain excess water and dissolved substances, such as salts and organic compounds. Guttation primarily occurs in certain plant species during periods of high soil moisture and low transpiration rates.

3. Leaf Shedding: Plants also excrete waste products by shedding their leaves. As leaves age and become less efficient in photosynthesis, they are shed by the plant. This process allows the plant to get rid of waste products and make room for new, healthy leaves.

Animals: Excretion is vital for maintaining the internal environment of animals. It helps eliminate metabolic waste products, regulate water and electrolyte balance, and remove harmful substances from the body. Here are some key points about the role of excretion in animals:

1. Removal of Metabolic Waste: Animals excrete metabolic waste products, such as urea (from the breakdown of proteins), uric acid (from the breakdown of nucleic acids), and carbon dioxide (a byproduct of cellular respiration). These waste products are toxic and need to be eliminated from the body to prevent their accumulation, which can be harmful.

2. Water and Electrolyte Balance: Excretion helps regulate water and electrolyte balance in animals. Kidneys play a crucial role in filtering waste products, excess water, and electrolytes from the blood, while reabsorbing essential substances. This process helps maintain the body's internal balance and prevent dehydration or electrolyte imbalances.

3. Detoxification: Excretion also aids in the removal of harmful substances, such as drugs, toxins, and foreign chemicals, from the body. The liver plays a significant role in detoxification by metabolizing and eliminating these substances through bile or urine.

Significance of Water, Oxygen, and Carbon Dioxide Excretion in Plants

1. Water Excretion: Plants excrete water primarily through the process of transpiration. Transpiration helps plants maintain their water balance, regulate temperature, and facilitate the movement of nutrients and minerals from the roots to other parts of the plant. It also contributes to the upward movement of water in the xylem vessels.

2. Oxygen Excretion: During photosynthesis, plants produce oxygen as a byproduct. This oxygen is released into the atmosphere through the stomata on the leaves. Oxygen is essential for the survival of other organisms, including animals, as it is required for respiration.

3. Carbon Dioxide Excretion: Plants take in carbon dioxide from the atmosphere during photosynthesis. However, they also release a small amount of carbon dioxide through the stomata during respiration and as a byproduct of metabolic processes. This carbon dioxide is then available for uptake by other organisms, such as algae and bacteria, for their own metabolic processes.

Organs of Excretion in Plants

Plants have various organs and structures involved in excretion. Here are some examples:

A. Stomata: Stomata are small openings on the surface of leaves and stems that allow for gas exchange, including the release of oxygen and carbon dioxide during photosynthesis and respiration.

B. Hydathodes: Hydathodes are specialized structures found at the tips or edges of leaves that excrete liquid droplets through guttation.

C. Root Hairs: Root hairs are extensions of root cells that increase the surface area for water and nutrient absorption. They also play a role in excreting certain waste products.

D. Lenticels: Lenticels are small openings on the surface of stems and woody tissues that allow for gas exchange and the release of waste gases.

These are just a few examples of organs involved in excretion in plants. Different plant species may have additional specialized structures for excretion.

Note: The information provided above is based on search results from You.com.