A piece of bone, such as femur of frog, if kept in dilute HCI for about a week will

1. assume black colour	2. shrink in size
3. turn flexible	4. crack into pieces

During an injury, nasal septum gets damaged. For its restoration, which cartilage is preferred?
1. Hyaline cartilage
2. Elastic cartilage
3. Calcified cartilage
4. Fibro cartilage

Which cartilage is present at the end of long bones?

Collagen is a
1. fibrous protein
2. globular protein
3. lipid
4. carbohydrate

Which one of the following contains the largest quantity of extracellular material?
1. Myelinated nerve fibres
2. Striated muscle
3. Areolar tissue
4. Stratified epithelium

Mast cells of connective tissue contain
1. vasopressin and relaxin
2. heparin and histamine
3. heparin and calcitonin
4. serotonin and melanin

Areolar connective tissue joins
1. integument to the muscles
2. bones to the muscles
3. bones to the bones
4. fat body to the muscles

Which one of the following mammalian cells are not capable of metabolizing (aerobically) glucose to carbon dioxide?

In which one of the following preparations, you are likely to come across cell junctions frequently?
1. Ciliated epithelium
2. Thrombocytes
3. Tendon
4. Hyaline cartilage

Which type of white blood cells are concerned with the release of histamine and the natural anticoagulant heparin?