Discuss cell surface transport under the following subheading: a structure (i) constituents (i) micro villi (iii) cilia and sperm tail
Answers
(i)noun. A constituent is described as someone who has the potential to appoint some other person to be a consultant. An example of constituent is a registered voter.
(ii)Cells might have slender extensions of the cytomembrane to create cilia or the smaller extensions referred to as microvilli. The microscopic microvilli effectively increase the extent of the cell and are helpful for absorption and secretion functions. A dramatic example is that the human bowel.
(iii) Sperm tails and cartilaginous tube cilia from Polynesians with bronchiectasis were examined within the microscope. The outer jacket tubules of the axonemal skeleton in these organelles either lacked dynein arms or had solely partial arms. numerous alternative organelle abnormalities were common. The spermatozoan were immobile and pulmonic mucociliary clearance was reduced or absent.
CONSTITUENTS: cell membrane is made up of phospholipids and proteins that form a barrier between cell and outside environment and also help in communication.
MICRO VILLI: these are cell membrane projections. they increase the surface area, property of absorption and secretion of cell.
CILIA and SPERM TAIL: cilia or sperm tail or flagella aid in movement and also aid as sensory organ.