Question

Что такое ГЕМОГЛОБИН? Сравните строение растительных и животных тканей!20 баллов

Answer 1

Это красящее вещество крови, то есть он делает ее красной

Answer 2

What is Hemoglobin?

Hemoglobin is a protein found in red blood cells that is responsible for carrying oxygen from the lungs to the body's tissues and organs. It is an essential component of the circulatory system and plays a crucial role in maintaining the body's oxygen balance. Hemoglobin also helps transport carbon dioxide, a waste product, from the tissues back to the lungs for exhalation.

Structure of Plant and Animal Tissues

Plant and animal tissues have distinct structures that reflect their different functions and characteristics.

Plant Tissues: Plant tissues are organized into three main types: dermal, ground, and vascular tissues.

1. Dermal Tissues: Dermal tissues form the outer protective covering of plants. They include the epidermis, which is a single layer of cells that covers the plant's surface, and the periderm, which replaces the epidermis in older plants.

2. Ground Tissues: Ground tissues make up the bulk of the plant's body and perform various functions such as photosynthesis, storage, and support. They include parenchyma, collenchyma, and sclerenchyma cells.

3. Vascular Tissues: Vascular tissues are responsible for transporting water, nutrients, and sugars throughout the plant. They consist of xylem and phloem. Xylem transports water and minerals from the roots to the leaves, while phloem transports sugars and other organic compounds from the leaves to the rest of the plant.

Animal Tissues: Animal tissues are classified into four main types: epithelial, connective, muscular, and nervous tissues.

1. Epithelial Tissues: Epithelial tissues cover the surfaces of organs, line body cavities, and form glands. They provide protection, absorption, secretion, and sensory functions. Epithelial tissues can be further classified into simple, stratified, squamous, cuboidal, and columnar epithelia.

2. Connective Tissues: Connective tissues provide support, protection, and structure to the body. They include various types of cells and extracellular matrix, such as collagen fibers, elastic fibers, and ground substance. Examples of connective tissues include bone, cartilage, blood, and adipose tissue.

3. Muscular Tissues: Muscular tissues are responsible for movement and generating force. There are three types of muscular tissues: skeletal, smooth, and cardiac muscles. Skeletal muscles are attached to bones and allow voluntary movement, while smooth muscles are found in the walls of organs and blood vessels, and cardiac muscles are found in the heart.

4. Nervous Tissues: Nervous tissues are specialized for communication and control. They consist of neurons, which transmit electrical signals, and neuroglial cells, which support and protect neurons. Nervous tissues form the brain, spinal cord, and peripheral nerves.

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