Question

question 6
which is true concerning muscle tissue?

• highly cellular and well vascularized
• exists only as one type
• contains contractile units made of collagen
• cuboidal shape enhances function

question 7
select the correct statement regarding adipose tissue.

• its primary function is nutrient storage.
• most of the cell volume is occupied by the nucleus.
• it is composed mostly of extracellular matrix.
• mature adipose cells are highly mitotic.

Explanation:

Question 6

• For "highly cellular and well vascularized": Muscle tissue has many cells and good blood supply (vascularization) to support its functions like contraction.
• For "exists only as one type": Muscle tissue has three types (skeletal, smooth, cardiac), so this is false.
• For "contains contractile units made of collagen": Contractile units in muscle (sarcomeres) are made of actin and myosin, not collagen. Collagen is for connective tissue.
• For "cuboidal shape enhances function": Muscle cells are elongated (fibers), cuboidal is for epithelial cells.

• For "Its primary function is nutrient storage": Adipose tissue (fat) stores energy (lipids, a nutrient - dense storage), so this is correct.
• For "Most of the cell volume is occupied by the nucleus": Adipose cells have a small nucleus and most volume is the lipid droplet.
• For "It is composed mostly of extracellular matrix": Adipose is loose connective tissue but most of it is adipocytes (cells), not extracellular matrix.
• For "Mature adipose cells are highly mitotic": Mature adipocytes don't divide (mitotic); new fat cells come from precursor cells.

Answer:

A. highly cellular and well vascularized

Question 7