BIOS 251 Final Actual Exam Latest Update -

BIOS 251 Final Actual Exam Latest Update - 200 Questions and 100% Verified Correct Answers Guaranteed A+

Accessory structures of the skin - CORRECT ANSWER: hair, glands, nails

Acid - CORRECT ANSWER: dissociates into one or more hydrogen ions, donates a

proton

Albinism - CORRECT ANSWER: a congenital disorder characterized by the complete

or partial absence of pigment in the skin, hair, and eyes due to a defect of an enzyme involved in the production of melanin

Anaphase - CORRECT ANSWER: centromeres of chromosomes split and sister

chromatids move toward opposite poles of cell

Apocrine secretion - CORRECT ANSWER: a portion of the cell membrane that

contains the excretion buds off

Appendicular skeleton - CORRECT ANSWER: limbs and girdles

Axial skeleton - CORRECT ANSWER: skull, vertebrae, ribs, sternum

Base - CORRECT ANSWER: dissociates into hydroxide ions and cations, removes a

proton from solution

Bone deposition - CORRECT ANSWER: addition of minerals and collagen by

osteoblasts

Bone remodeling - CORRECT ANSWER: removing old bone matrix, adding new matrix

Bone remodeling phase - CORRECT ANSWER: Last step of fracture and repair that

involves the bony callus being remodeled

Bone resorption - CORRECT ANSWER: removal of minerals and collagen by

osteoclasts

Calcitonin - CORRECT ANSWER: -made by thyroid works to reduce blood calcium

levels -bones strengthen

Calcitriol - CORRECT ANSWER: -stimulated by PTH

-produced by kidneys to increase calcium absorption in intestines

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Cell cycle stages - CORRECT ANSWER: G1, S, G2, mitosis

Cells of the epidermis - CORRECT ANSWER: keratinocytes, melanocytes,

intraepidermal (dendriditc/langerhans), tactile (merkel)

Ceruminous glands - CORRECT ANSWER: modified sweat glands located in ear canal

Components of the homeostatic control loop - CORRECT ANSWER: receptor, control

center, effector

Connective tissue functions - CORRECT ANSWER: -structural support

-transporting fluids and dissolved materials -defense and protection of organs/organ system/organism -energy storage

Connective tissue proper - CORRECT ANSWER: -variety of cells mixed w/many fibers

-types: loose, dense, embryonic, etc.

Endochondral ossification - CORRECT ANSWER: bone replaces existing cartilage

template, long bones

Endocytosis - CORRECT ANSWER: cell takes up specific ligands that bind to cell

surface receptors into a vesicle

Epiphyseal plate - CORRECT ANSWER: where endochondral ossification occurs for

long bones to grow in length

Epithelial tissue functions - CORRECT ANSWER: -selective barrier

-secretory surface -protective surface to resist abrasions

Epithelial tissue general location - CORRECT ANSWER: line exposed surfaces of body and make up glands

Exocytosis - CORRECT ANSWER: -membrane-enclosed secretory vesicles fuse w/the

plasma membrane and release their contents into the ECF -used to secretions such as sweat, oil

Factors that influence diffusion across a cell membrane - CORRECT ANSWER: -

steepness of concentration gradient -temperature -mass of diffusing substance -surface area -diffusion distance

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