Which type of collagen forms fibrils Type I Type IV Type IX

Which type of collagen forms fibrils? Type I Type IV Type IX Type XII Type XXII Selectins mainly mediate cell matrix attachments. are members of the Ig superfamily of cell adhesion molecules. do NOT require Ca2+ for their adhesive function, unlike integrins. are carbohydrate-binding proteins. All of the above. At desmosomes, cadherin molecules are connected to actin filaments. intermediate filaments. microtubules. gap junctions. Which of the following is necessary for cadherins to bind homophilically? Mg ions K ions Ca ions aggregan all of the above Integrins are obligate containing two distinct chains, called the (alpha)

Solution

14. Type I collagen is the most abundant collagen of the human body which forms collagen fibers.

So answer is A

15. The selectins (cluster of differentiation 62 or CD62) are a family of cell adhesion molecules (or CAMs).

So answer is B.

16.Cadherins in the adherens junctions of adjacent cells. This arrangement establishes a physical connection among the actin cytoskeletons of all cells present in an epithelial layer of cells.

So answer is A

17. Calcium ions are necessary for cadherin to bind.

So answer is C

18. Heterodimer