Q. Which of the following is/are correctly matched?

1. Bone cells- embedded in a hard matrix that is composed of calcium and phosphorus
2. Tendons- very elastic
3. Cartilage- matrix composed of proteins and sugars
4. Areolar tissue- helps in repair of tissue

Select the correct answer from the codes given below:
Answer: Only 1, 3, and 4
Notes: Bone forms the framework that supports the body. It also anchors the muscles and supports the main organs of the body. It is a strong and nonflexible tissue. Bone cells are embedded in a hard matrix that is composed of calcium and phosphorus compounds. Two bones can be connected to each other by another type of connective tissue called the ligament. This tissue is very elastic. Tendons connect muscles to bones and are another type of connective tissue. Tendons are fibrous tissue with great strength but limited flexibility. Cartilage has widely spaced cells. The solid matrix is composed of proteins and sugars. Cartilage smoothens bone surfaces at joints and is also present in the nose, ear, trachea and larynx. Areolar connective tissue is found between the skin and muscles, around blood vessels and nerves and in the bone marrow. It fills the space inside the organs, supports internal organs and helps in repair of tissues.