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When no energy is present substances will naturally move from low to high concentration?
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What is the energy source for co-transport?
the movement of one of the transported substances down its concentration gradient
What is a Form of potential energy in food and dynamite?
The energy present here is stored as chemical energy in the bonds between the atoms of these substances.
Are substances able to travel against their concentration gradient?
Yes, but only with an expenditure of energy which characterizes active transport.
Substances like oxygen pass through the cell without the use of energy and move from an area of high concentration to an area of low concentration?
That is the description of simple diffusion.
What are 4 things that affect the rate of a reaction?
1. The concentration of the substances. 2. The temperature. 3. The surface area of the particles. 4.The presence of a catalyst.
Do Substances naturally diffuse up a concentration?
no down a concentration gradient high to low if its low to high it requires energy
What is the process that requires cellular energy to move a substance against its concentration gradient?
Active transport uses energy to move substances against the concentration gradient.
Does some diffusion require energy?
No. Diffusion is a natural occurrence of the net movement of substances from a region of higher concentration to a region of lower concentration (down the concentration gradient).
What is the energy source for co-transport?
the movement of one of the transported substances down its concentration gradient
What transport that requires no energy and moves substances from an area of high concentration to a lower concentration?
Your mom...........no I'm just kidding, but there are some cars that regire no energy, but just solar power.
For what purpose does active transport use energy?
Active transport uses energy to move substances against a concentration or electrochemical gradient.
Does oxygen and carbon dioxide moving from alveoli to capillaries requires energy?
It does not require energy. It move down the concentration gradient naturally.
What are the two basic ways substances enter or exit a cell?
These are not necessarily the mechanisms, but I believe you are referring to active and passive transport. Active transport uses energy (from adenosine triphosphate, or ATP) to move solutes from an area of low concentration to an area of high concentration This movement is against the concentration gradient, so energy is required. Passive transport is when the solutes basically fall from an area of high concentration to an area of low concentration across a membrane. Since solutes naturally seek to equalize concentration across a membrane, no added energy is required for passive transport.
What is the purpose of active transport?
Active transport expends energy to move substances against a concentration gradient.
A large concentration of mitochondria are present in which section of a sperm cell?
A large concentration of mitochondria are present in the tail section of the sperm. The mitochondria are the energy components, and the tail needs the energy for it's journey to fertilization.
What is a Form of potential energy in food and dynamite?
The energy present here is stored as chemical energy in the bonds between the atoms of these substances.
Are substances able to travel against their concentration gradient?
Yes, but only with an expenditure of energy which characterizes active transport.
