Answer:
In multicellular organisms, cells are grouped to form tissues. These tissues are specialized to carry out a particular function at a definite place in the body.
Answer: 18°24'
cos
Explanation:
Use equation for cos α=b/c
b=32
c=40
cosα=32/40
cosα=4/5
csc=71.62°
α=71.62°
90°+α+β=180°
β=180-α-90
β=180-71,62-90
β=18.4°
β= 18°24'
The types of junctions with their features and / or functions include:
- Gap junctions: involves connexon proteins that create a pore to connect cells.
- Plasmodesmata: Cytoplasmic connections between the cell walls of plants.
- Tight junctions: Leak-proof seal that surrounds the cell.
- Adherens junctions: Cadherins bind to microfilaments.
- Desmosomes: Cadherins bind to intermediate filaments.
<h3>Types of cell junctions</h3>
Cell junctions are those structures that binds neighboring cells together or a cell and an extracellular matrix.
The types of cellular junctions include:
- Gap junctions: These are formed by a six membrane protein called connexins which call an elongated structure called connexon that helps to connect cells.
- Plasmodesmata: This is junctions that forms places where a hole is punched in the cell wall to allow direct cytoplasmic exchange between two cells.
- Tight junctions: This junction create a waterproof seal between two adjacent animal cells.
- Adherens junctions: These are junctions that bind actin filaments of neighboring cells together through the binding of cadherins to microfilaments.
- Desmosomes: They are junctions that help join adjacent epithelial cells together. Within these cells, the cadherins attach to a structure called the cytoplasmic plaque which connects to the intermediate filaments that help anchor the junction.
Learn more about cell junctions here:
brainly.com/question/24881456
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