DSA Module 3 Exam 2026 Full Questions and Answers Complete Prep 2026/ 2027

DSA Module 3 Exam 2026 Full Questions and Answers Complete Prep 2026/ 2027 4 main classes of connective tissues - Answer- - connective tissue proper - cartilage - bone - blood 5 functions of connective tissues - Answer- - Binding and supporting - Protecting - Insulating - Storing reserve fuel - Transporting substances within the body 3 main components of structural elements of connective tissue - Answer- - Ground substance - Fibres - Cells Ground substance - Answer- - functions as a molecular sieve for substances to travel between blood capillaries and cells - clear, colourless, viscous fluid that fills the space between the cells and fibres - composed of interstitial fluid, proteoglycan and cell adhesion proteins that allows a connective tissue to act as a glue for cells to attach to the matrix 3 types of fibres - Answer- - collagen - elastic - reticular What is collagen - Answer- - fibrous protein collagen - extremely tough and provide tensile strength What is elastic - Answer- - elastin - stretch and recoil like rubber bands - found where great elasticity is needed: skin, lungs, blood vessels What is reticular - Answer- - reticular fibres are short, fine collagenous fibres - branch extensively to form a delicate network What are the 5 specific cell types - Answer- - blast (immature) & cyte (mature - fat cells - white blood cells - mast cells - macrophages What are -blast and -cyte cells - Answer- blast = immature - actively proliferating and secrete the ground substance and the fibres characteristic of their particular matrix - fibroblast cyte = mature - maintain the health of the matrix - can revert to their active, immature, state to repair and regenerate the matrix Fat cells - Answer- store nutrients White blood cells - Answer- including neutrophils, eosinophils, lymphocytes, that are involved in the immune response Mast cells - Answer- - which typically cluster along blood vessels - detect and remove foreign microorganisms - initiate local inflammation Macrophages - Answer- A type of WBC that cleans the body of unwanted microscopic particles, such as bacteria and dead cells 4 connective tissues - Answer- - connective tissue proper - bone - cartilage - blood 2 types of connective tissue proper and their subcategories - Answer- Loose connective tissue: - areolar - adipose - reticular Dense connective tissue: - dense regular - dense irregular - elastic Areolar Connective Tissue - Answer- Loose connective tissue Function: - supporting and binding other tissues - defending against infection - holding body fluids - storing nutrients Appearance: - most widely distributed - fibroblast - loose arrangement of fibres - lots of ground substance Adipose (fat) Tissue - Answer- Loose connective tissue Function: - store energy (lipids) - cushions and insulates the body Appearance: - sparse - closely packed adipocytes (fat cells) Reticular Connective Tissue - Answer- Loose connective tissue Function: - internal frameworks that can support immune cells Appearance: - delicate network of reticular fibres Dense regular connective tissue - Answer- Function: - tendons that attach muscles to bone - sheet like tendons that attach muscles to other muscles or to bones - ligaments that bind together at joints - Fascia, a fibrous membrane that wraps around the muscles, blood vessels, and nerves Appearance: - closely packed bundles of collagen fibres running in the same direction - slightly wavy - fibroblasts Dense irregular connective tissue - Answer- Function: - found in areas where tension is exerted from many different directions - part of the skin dermis area - in the fibrous joint capsules of the limbs - the fibrous covering that surrounds some organs Appearance: - same structural elements as dense regular tissue, but the bundles of collagen fibres are much thicker and arranged irregularly Elastic connective tissue - Answer- Function: - allow the tissues to recoil after stretching - around vertebrate - blood vessel walls - bronchial tubes Appearance: - similar to dense regular connective tissue with more elastic fibres Hyaline cartilage - Answer- Function: - provides strong support while providing pads for shock absorption - found in the bronchi and parts of the nose structure Appearance: - large number of collagen fibres, its matrix appears transparent or glassy - chondrocytes