1.underground stem -- for storage of food ex. potato , ginger.
2.spines for protection ex. citrus , bougainvillea
The survival or neuronal development of human embryonic or human induced pluripotent stem cells is not improved by feeding them more than five days per week.
<h3>Why does feeding not increase neuronal differentiation or cell survival?</h3>
An induced pluripotent stem cells (iPSCs) and embryonic stem cells (ESCs) can differentiate into any form of specialized human cell, ESC/iPSC-derived cell types have a lot of potential for use in regenerative medicine.
Neuroscience research can benefit from neural culture of human pluripotent stem cells. However, it is unknown what the ideal feeding schedule for these in vitro systems should be. Human embryonic and induced pluripotent stem cells were cultivated with medium exchange schedules of five, six, or seven days per week during two months of differentiation. We assessed the survival and neural differentiation characteristics of these cells. Through this period of culture, neither human pluripotent cell type showed any appreciable alterations in cell counts or indicators of brain development. We come to the conclusion that feeding this culture system more than five days a week is unlikely to be advantageous.
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Answer:
i believe that they connect due to the cells need for energy and photosynthesis produces glucose for the plant to use as energy
Explanation:
The answer is A.) decomposition
Got a 100% Hope that helps
Explanation:
- In mechanical digestion, the teeth grind food and break it in to smaller parts.
- Churning and the enzyme pepsin break down protein in the stomach.
- The pancreas releases the enzymes trypsin and chymotrypsin.
- Trypsin and chymotrypsin act on the proteins to break them down in the duodenum.
- Amino acids are absorbed by the capillaries in the jejunum.
- Amino acids enter the bloodstream and are circulated throughout the body.
Further Explanation:
Food is chemically and mechanically broken down into into smaller particles. This begins in the mouth, where food is mechanically crushed by the teeth, and mixed with saliva to allow water based enzymes like lingual lipase to work;- it's then transported to the stomach via the esophagus. Next in the stomach the enzyme gastric lipase acts on lipids, breaking them up into their components.
In the stomach, the enzyme pepsin breaks proteins, like those found in salmon, into smaller peptides by splitting the peptide bonds holding the proteins together. In the stomach, the enzyme pepsin breaks proteins, into smaller peptides by splitting the peptide bonds holding the proteins together.
The duodenum processes these newly-formed peptide chains or polypeptides, into smaller ones, through the enzyme action of elastase, trypsin and chymotrypsin; these are produced in the pancreas. Peptidases convert these fragments into amino acids for absorption into the bloodstream via the small intestines.
After digestion, the process of absorption occurs within villi of the small intestine; this occurs within the jejenum. Villi are small finger-like projections from epithelial cells of the small intestine; due to the projections, they have increased surface areas for absorption. Absorption involves several processes such as:
- endocytosis
- passive diffusion
- facilitated diffusion
- active transport
- secondary active transport (co transport)
The nutrients are then taken up into the bloodstream via capillaries, and circulated through the body
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