Introduction:
Cells are regarded as the simplest unit (structural and functional) of life. Cellular membrane, nucleus, and cytoplasm are the three major components of a cell. Cellular membrane which surrounds the entire cell is composed of phospholipids and proteins. The nucleus is bound by a nuclear membrane and it possesses the genetic material of the cell. Cytoplasm consists of organelles, cytoskeleton (filaments and tubules), and inclusion bodies. Protoplasm denotes all living materials that are present in the cell enclosed by the cellular membrane (inside and outside the nucleus).
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Chapter 3 Solutions
LSC (CONCORDIA UNIV ST PAUL) BIO 315/316: B&N DPF Connect with APR and Phils Online Access for Anatomy and Physiology: The Unity of Form and Function 180 Day Access ENTRP
- Difference between Osmosis and Diffusionarrow_forwardThe resting membrane potential of a cell is polarized, meaning that it has a _____ charge on the outside of the cell membrane and a ______ charge on the inside of the cell membranearrow_forward________________ is the name of the process by which glucose moves across a plasma membrane.arrow_forward
- _____ ions are relatively impermeable to the cell membrane, they are let into the cell by gated channels (channel mediated facilitated diffusion).arrow_forwardHydrophobic molecules that dissipate osmotic gradients byinserting themselves into a membrane and forming a channelare called _____________.arrow_forwardTrue or false the cell membrane equalizes osmosis pressure to protect cell.arrow_forward
- "The membrane potential arises from movements of charge that leave ion concentrations practically unaffected, causing only a very slight discrepancy in the number of positive and negative ions on the two sides of the membrane." is true or false.arrow_forward"Tight junctions perform two distinct functions: they seal the space between cells to restrict paracellular flow and they fence off plasma membrane domains to prevent the mixing of apical and basolateral membrane proteins" is true or false.arrow_forwardThe fatty acid tails in the plasma membrane are ______________ which means they are _______________.arrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
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