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Physiology 1

Assignment 1

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.
RNA and DNA have the same pyrimidine bases but different purine bases. False
All proteins have which four elements? carbon, oxygen, hydrogen, and nitrogen
The two processes of protein synthesis are transcription and translation.
The total number of 46 chromosomes per cell is referred to as _________ number. diploid
Apocrine sweat glands can be found in all of the following areas except the: soles of the feet.
In which skin layer does the process of keratinization begin? Stratum granulosum
Which cells of the skin act as a type of antigen-presenting cell in the skin? Dendritic cells
The cell organelles that synthesize organic matrix substances in bone formation are: endoplasmic reticulum and Golgi apparatus.
Young children’s bones have a greater risk of fracturing because of incompletely ossified bone. False
Normally, bone loss will begin to exceed bone gain between the ages of _____ years. 35 and 40
During childbirth, a baby passes through an imaginary plane called the: pelvic outlet.
Due to how the clavicle articulates with the scapula, all shoulder movements involve the sternoclavicular joint. True
In a myelinated neuron, the impulse can travel under the myelin between nodes of Ranvier. True
Which membrane receptor acts to directly change ion permeability when stimulated? Gated-channel receptor
A membrane that exhibits a membrane potential is said to be polarized
The energy required for muscular contraction is obtained by hydrolysis of ATP
The first event to occur in muscle relaxation is that: the sarcoplasmic reticulum begins actively pumping calcium back into its sacs.
Created by: RaeGunzz
 

 



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