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Susana Alamo

Human Anatomy -Week 7: Assignment -

QuestionAnswer
Before incorporation into a filament, an actin monomer binds a molecule of: a. GTP b. ADP c. F-actin d. ATP e. ATPase d. ATP
Calcium is important in muscle contraction because ______ a. it allows ATP hydrolysis b. it inhibits ATPase molecules c. it is required above a threshold level of 5e-7 M d. it causes a shift in tropomyosin, thus exposing the myosin-binding sites on d. it causes a shift in tropomyosin, thus exposing the myosin-binding sites on actin
The stages through which a cell passes from one cell division to the next constitute the _____. a. energy cycle b. life cycle c. regeneration cycle d. cell cycle e. biocycle d. cell cycle
Which of the following structures of the cell contains hereditary information and genetic material? A. Nucleus B. Endoplasmic reticulum C. Cytoplasm D. Lysozymes A. Nucleus
Which of the following terms identifies the body fluid that lies within the cells? A. Interstitial fluid B. Extracellular fluid C. Synovial fluid D. Intracellular fluid D. Intracellular fluid
The hip joint is an example of which type of joint? A. Hinge B. Ball-and-socket C. Gliding D. Pivot D. Pivot
Which of the following components are found in the channels of the cell membrane? A. Proteins B. Lipids C. Cholesterol D. Diglyceride A. Proteins
Which of the following types of cells release histamine in response to allergens? A. B cells B. T cells C. Mast cells D. Dendritic cells C. Mast cells
Which of the following functions is associated with the dermal layer of the skin? A. Collagen formation B. Vitamin D activation C. Melanin production D. Storage of extra calories A. Collagen formation
Which of the following bones is a component of the appendicular skeleton? A. Xyphoid process B. Symphysis pubis C. Sacrum D. Sternum B. Symphysis pubis
What is the name of the specialized junction that neurons of the nervous system utilize to communicate? A. Synapse B. Postsynaptic receptor C. Neurotransmitter D. Dendrite A. Synapse
Created by: susan08
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