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Physio week 1-6

1.)Of the pathogenic organisms, which of the following are the most complex? tapeworms
2.If the secretion of oxytocin during childbirth operated as a negative-feedback control loop, what effect would it have on uterine contractions? Oxytocin would inhibit uterine contractions.
3.Negative-feedback control systems oppose a change
4.) Intrinsic control autoregulation
5.The impact of effector activity on sensors may be positive or negative. Therefore, homeostatic control mechanisms are categorized as organs that are directly influenced by physiological variables or mechanisms
6.) ATP is the form of energy that cells generally use
7.)A saturated fatty acid is one in which all available bonds of its hydrocarbon chain are filled.
8.Which of the following is not true of both triglycerides and phospholipids? They both contain a hydrophobic and hydrophilic end.
9.)What is the most important factor in determining the physical and chemical properties of fatty acids? degree of saturation
10.)Which energy-releasing or energy-transferring molecule does not contain a nucleotide? createnine phospate
11.Transcription can best be described as the synthesis of mRNA
12.)In which stage of mitosis do chromosomes move to the opposite ends of the cells along the spindle fibers? anaphase
13.Which of the following is not a characteristic of meiosis? two haploid gametes
14.)Osmosis can be defined as the net movement of water molecules from a region of lower solute concentration to a region of higher solute concentration.
15.)Glycolysis occurs in what part of the cell? cytoplasm
16.)In which skin layer does the process of keratinization begin? stratum granulosum
17.) Where is hair follicle found? dermis
18.)Which cells help destroy pathogens and damaged tissue in the brain microglia
19.)Which tissue is most likely to form a keloid scar as it heals? connective
20.)Which of the following is not a characteristic of skeletal muscles? having one nucleus per cell
21.The external portion of the bone is known as cortical bone
22.Bones grow due to activity in the ephypiseal plate
23.) What bestbest describes the axial skeletal structure Provides framework for muscles that anchor and stabilize the appendicular bones
24.Appositional growth of cartilage occurs when chondrocytes begin to divide and secrete additional matrix
25.Small cells that synthesize and secrete a specialized organic matrix are osteoblasts
26.Blood calcium levels involve secretion of which two hormones? parathyroid and calcitonin
27.Three phases of the twitch contraction are the latent period, contraction phase, and relaxation phase
28.)Dorsiflexion _____ occurs when the foot is tilted upward, thus decreasing the angle between the top of the foot and the front of the leg.
29.According to the sliding filament theory actin moves past myosin
30.)Which structure allows the electrical signals to travel along the sarcolemma and move deeper into the cell? transverese tubule
31.)The shoulder joint is an example of a _____ joint shoulder
32.)Muscle tone is maintained by negative feedback
33.Which of the following is an example of a uniaxial joint? elbow joint
34.)Which of the following is not among the structures that characterize synovial joints? tendons
35.A contraction in which muscle length remains the same but muscle tension increases is called a isometric contraction
Created by: quind27
 

 



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