Answer:
These organelles are contractile vacuoles
Explanation:
Contractile vacuoles are intercellular pumps that are slowly filled with fresh water and eventually expel their contents outside the cell. Freshwater protists maintain the hydric equilibrium by contractile vacuoles that pump out the water of the cell and thus prevent the cell swelling induced by osmotic stress.
Answer:
The human genome is the complete set of nucleic acid sequences for humans, encoded as DNA within the 23 chromosome pairs in cell nuclei and in a small DNA molecule found within individual mitochondria. These are usually treated separately as the nuclear genome, and the mitochondrial genome.
The process that requires energy for digested nutrients to pass through the small intestinal wall into the villi is called active transport
In the process of digestion, complex food molecules are broken down into macromolecules which are absorbed by the body. The absorption of nutrients such as glucose, vitamins, and amino acids takes place in the small intestine.
The small intestine contains tiny hair-like projections called the microvilli that are rich in blood vessels. These structures help in the absorption of nutrients.
As the concentration of these nutrients is higher in the bloodstream than in the intestine. The absorption of nutrients requires energy for the movement of nutrients from lower concentration to higher concentration. This energy-driven transportation is called active transport.
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