Answer:
emigration
Explanation:
The bag is more concentrated in starch than the beaker. This is because the bag contains a solution of starch and water, while the beaker contains only water.
The starch molecules are unable to pass through the plastic bag, so they remain concentrated in the bag. The water molecules, however, are able to pass through the bag, so they diffuse into the beaker, making the solution in the beaker less concentrated in starch.
If you were to leave the bag and beaker for a long enough period of time, all of the starch molecules would eventually diffuse into the beaker, and the concentration of starch in both the bag and beaker would be the same. However, in practice, this would take a very long time, as the rate of diffusion is relatively slow.
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B. Release of melatonin to regulate sleep cycle
C. Pulling your hand off a hot stove
Answer:
B. Release of melatonin to regulate sleep cycle
Explanation:
Capillaries are the smallest of all your blood vessels, only visible under a microscope. They link the arterioles to the venules. Capillaries were discovered by Marcello Malphigi in 1661. There are 10 billion capillaries in your body.
b. Carbohydrates are fattening.
c. A teaspoon of carbohydrate contains twice as many calories as the same amount of fat.
d. Carbohydrates are stored, rather than burned, by the body.
Carbohydrates are a friendly fuel is true. Therefore, option (A) is correct.
Carbohydrates are an essential macronutrient and serve as the primary source of energy for the body. When consumed, carbohydrates are broken down into glucose, which is used by cells to produce ATP (adenosine triphosphate), the energy currency of the body. Carbohydrates provide quick and easily accessible energy for bodily functions, physical activity, and brain function.
Carbohydrates themselves are not inherently fattening. Weight gain occurs when there is an excess of calories consumed from any macronutrient, including carbohydrates, that exceeds the body's energy needs.
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Light energy is converted to chemical energy during photosynthesis.
O Oxygen is made from the breakdown of carbon dioxide during photosynthesis.
O Energy is absorbed by chlorophyll during photosynthesis.
The sun gives off light energy that is absorbed by plants.
Answer:
Light energy is converted to chemical energy during photosynthesis.
Explanation:
The first law of thermodynamics, which is the LAW OF CONSERVATION OF ENERGY, states that energy can neither be created nor destroyed but can only be changed from one form to another. This law explains that the energy that exists cannot be made or destroyed, it can only be transformed from one of Its form to another.
The biological process of photosynthesis illustrates this law. Photosynthesis is the synthesis of organic molecules from inorganic molecules using the energy from sunlight. Plants, via their Chlorophyll pigment capture the light energy from the sun and use it to produce their food in form of organic molecules/glucose. This glucose is a chemical compound that stores energy in its chemical bonds.
Hence, photosynthesis supports the law of conservation of energy by changing/converting light energy from sun into a chemical energy in food (glucose).