The cells of muscles, myocytes, develop from

ATI RN

ATI RN Test Bank

A. myoblasts B. endoderm C. fibrocytes D. chondrocytes

Correct Answer: A

Rationale: Myocytes (muscle cells) develop from myoblasts, precursor cells specific to muscle tissue.

Phospholipids involve a phosphate group and:

A. 4 or more fatty acids B. 3 fatty acids C. 2 fatty acids D. 1 fatty acid

Correct Answer: C

Rationale: Phospholipids have a glycerol, two fatty acids, and a phosphate group, unlike triglycerides with three.

Which organelle contains hydrolytic enzymes?

A. lysosome B. ribosome C. mitochondrion D. Golgi complex

Correct Answer: A

Rationale: Lysosomes contain hydrolytic enzymes for breaking down waste and cellular debris.

The genetic code for a single amino acid consists of:

A. one nucleotide B. two nucleotides C. three nucleotides D. four nucleotides

Correct Answer: C

Rationale: A codon, specifying one amino acid, is a triplet of three nucleotides.

Simple squamous epithelium is not found in:

A. lymph vessels B. pancreatic duct C. small arterioles D. air sacs of lung

Correct Answer: B

Rationale: Simple squamous lines vessels and alveoli for diffusion; pancreatic ducts have cuboidal/columnar epithelium.

$89/ 30 days

$150/ 90 days