Transportation in Plants and Animals Test - 4

The mature mammalian red blood cells are incapable of further division because they lack nuclei.

The enzyme liberated by platelet is thromboplastin. It helps in blood coagulation.

Blood pressure is measured in arteries,as it is the intra-arterial pressure generated by the pulsatile flow of blood through an artery.

Blood pressure is controlled by adrenal gland. It produces aldosteronewhich helps to control blood pressure by managing the balance of potassium and sodium.

Translocation of food is a function of sieve tubes. Sieve tube elements are a specialised type of elongated cells in the phloem tissue of flowering plants. The ends of these cells are connected with other sieve tube members and together they constitute the sieve tubes.

Phloem takes part in translocation of food.The phloem is concerned mainly with the transport of soluble organic material made during photosynthesis. This process of transportation is called translocation.

Sieve tubes help in the bidirectional translocation of minerals. They are elongated, food-conducting cells in phloem in angiosperms.

Conducting tissues help in the transportation in plants. They are Xylem and Phloem. Xylem helps in transport of water where as Phloem helps in conduction of food.

Suction pressure causes the entry of water into root hairs.

Osmosis is the passage of water across a selectively permeable membrane.It is a vital process in biological systems, as biological membranes are semipermeable.