Veterinary Support Assistant - Qp3

The cell membrane surrounds the cell and acts as a protective barrier. It regulates the movement of substances in and out of the cell, allowing for the exchange of nutrients and waste products. It also plays a role in cell communication and recognition. The cell membrane is composed of a phospholipid bilayer with embedded proteins that help maintain the cell's structure and function.

Platelets are involved in the clotting process. When there is an injury to blood vessels, platelets are activated and form a plug at the site of injury, preventing further blood loss. They release chemicals that attract more platelets and help in the formation of a stable blood clot. Red blood cells, plasma, and white blood cells are not directly involved in the clotting process. Red blood cells carry oxygen, plasma is the liquid component of blood, and white blood cells are part of the immune system.

There are four types of tissue in the human body: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. Each type of tissue has its own unique structure and function. Epithelial tissue covers the body's surfaces and lines internal organs. Connective tissue provides support and connects different body parts. Muscle tissue allows for movement. Nervous tissue transmits signals throughout the body.

The statement "20% of an animal's body weight is made up of blood" is false. While blood is an important component of an animal's body, it typically does not make up 20% of their total body weight. The exact percentage varies among different species, but generally, blood constitutes a much smaller proportion of an animal's body weight.

The question asks for types of dog head shape. The options "Conical," "Striped," and "Vaulted" do not describe head shapes. However, "Domed," "Down," and "Apple" are all valid descriptions of different dog head shapes.