The villi of the small intestine use active transport to take up nutrients after concentration has reached equilibrium.
<h3>What is Active transport?</h3>
Active transport may be defined as the process that occurs against the concentration gradient and is mediated by carrier proteins. Metabolic energy is used to move ions or molecules against a concentration gradient.
During the process of digestion, the villi in the small intestine enthrall the soluble nutrients gradually. Over time, the concentration of nutrients in the villi acquires an equilibrium with the concentration in the gut. Until here, the nutrient uptake is carried by the process of passive diffusion.
But after attaining the equilibrium, the nutrient uptake is carried by the process of active transport.
The complete question is as follows:
What part of the body uses active transport to take up nutrients after concentration has reached equilibrium?
- Lungs
- Stomach
- Small intestine
- Liver
Therefore, the correct option for this question is C, i.e. small intestine.
To learn more about Active transport, refer to the link:
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The structure that traps light energy to make food for the plants is the chloroplast.
<h3>WHAT IS CHLOROPLAST:</h3>
- Chloroplast is a double membrane organelle found in the cells of some eukaryotic organisms e.g. plants.
- Chloroplast is the organelle responsible for the occurrence of the photosynthetic process where light energy from the sun is trapped and used to synthesize glucose/sugars.
Therefore, it can be said that the structure that traps light energy to make food for the plants is the chloroplast.
Learn more about chloroplast at: brainly.com/question/11136550
They need:
1 Food
2 Light
3 Water
Water (H2O) creates the medium in which chemical changes in the body occur.
