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PHYSIOLOGY

QuestionAnswer
What is intrinsic control, and what is another name for it? Intrinsic control operates at the cellular level and is also called autoregulation.
How do negative feedback systems maintain homeostasis? They oppose a change to maintain balance, minimizing fluctuations such as in blood glucose or temperature.
What type of lipid forms hormones like estrogen and testosterone? Steroids.
What type of bond joins amino acids in a protein chain? Peptide bonds.
What is the difference between diffusion and active transport? Diffusion is passive and requires no energy, while active transport (like endocytosis) requires ATP to move materials against the gradient.
What happens during transcription in protein synthesis? mRNA is synthesized from a DNA template inside the nucleus.
What are the main functions of epithelial tissue? Protection, secretion, absorption, and excretion.
Which layer of the skin produces fingerprints? The papillary layer of the dermis.
Which two hormones regulate blood calcium levels? Parathyroid hormone (raises calcium) and calcitonin (lowers calcium).
What is the role of the sarcoplasmic reticulum in muscle cells? It stores and releases calcium ions needed for muscle contraction.
Created by: mialani
 

 



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