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What is the movement of materials through a cell membrane?
Movement of substances into and out of cells include passive mechanisms that do not require cellular energy (diffusion, facilitated diffusion, osmosis, and filtration) and active mechanisms that use cellular energy (active transport, endocytosis,and exocytosis).
Does Alltell require a contract for their cellular service?
Alltell does not require a contract for their cellular service. You can find more information about different cellular services at heir stores or online wedsites.
Describe methods by which substances enter and leave cells that do not require cellular energy?
Diffusion-movement of substances from a region of higher concentration to a region of lower concentration down a concentration gradient. Osmosis (also similar to diffusion) - movement of water molecules from a region of higher water potential to a region of lower water potential down a water potential gradient:)
Does not require light?
cellular respiration
Does bacteria require ATP for its cellular functions?
Yes, bacteria require ATP for their cellular functions. ATP is a molecule that provides energy for various cellular processes, including metabolism and growth, in bacteria.
Which cellular processes require the greater expenditure of cellular enery and uses specific carrier molecules?
Cellular processes that require a greater expenditure of energy and utilize specific carrier molecules include active transport and endocytosis. Active transport moves substances against their concentration gradient, using ATP and transport proteins like pumps. Endocytosis involves the engulfing of materials into the cell membrane, requiring energy to form vesicles. Both processes are essential for maintaining cellular homeostasis and nutrient uptake.
Do plants require oxygen for cellular respiration?
yes they do
What are active and passive transport and how they are alike and different?
Active transport and passive transport are two methods by which substances move across cell membranes. Active transport requires energy, typically in the form of ATP, to move molecules against their concentration gradient, while passive transport does not require energy and occurs along the concentration gradient. Both processes are essential for maintaining cellular homeostasis, but they differ in their energy requirements and the direction in which substances move relative to their concentration gradients.
What is the cellular movement of a substance that does NOT require energy?
Passive transport
Does cellular division require energy?
yes, everythingrequires energy.
All cellular activities require what?
They all need to repodes
Why can't heat energy travel through space by conduction or convection?
Both of these methods require the presense of matter.Both of these methods require the presense of matter.Both of these methods require the presense of matter.Both of these methods require the presense of matter.
