Test One - Anatomy and Physiology

Which nucleotide base is absent from DNA?

• adenine

• cytosine

• thymine

• uracil

The function of dense regular connective tissue is z___.

• elastic recoil

• binding and support

• encapsulation of blood vessels

• articulation

Which statement best describes connective tissue?

• It is derived from endoderm and secretes metabolic substances

• It is derived from mesoderm and conducts impulses

• It is derived from mesoderm and contains abundant matrix

• It is derived from ectoderm and is usually layered

The skin is derived from _________.

• ectoderm and endoderm

• ectoderm and mesoderm

• mesoderm and endoderm

• ectoderm, mesoderm, and endoderm

Which word combination applies to stratified squamous epithelium?

• mesoderm-calcification

• ectoderm-keratinization

• mesoderm-ossification

• endoderm-cornification

The presence of a basement membrane is typical of most

• epithelial tissues

• connective tissues

• nervous tissues

• muscle tissues

Identify the mismatch

• yellowish skin in people of Asian origin—carotene abundant

• tanning of skin in response to sunlight—increased synthesis of melanin

• bluish skin (cyanotiC.—oxygenated blood

• dark skin in people of African origin— greater synthesis of melanin

The inability to absorb digested nutrients may be due to damage of which type of epithelium?

• ciliated columnar

• simple columnar

• simple squamous

• simple cuboidal

Which organelle contains hydrolytic enzymes?

• lysosome

• ribosome

• mitochondrion

• Golgi apparatus

During protein synthesis, amino acids become linked together in a linear chain by _____.

• hydrogen bonds

• peptide bonds

• ionic bonds

• phosphate bonds