Do the protein polymers in our food have the same structure as the proteins polymers in our body
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The most primitive cells are prokaryotic. They are simple, with no organelles and no nucleus. Animal and plant cells are eukaryotic, but they express some differences such as the cell wall, chloroplasts, or centrioles.
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<u>BACTERIA CELLS</u>
- Bacteria are prokaryotic cells.
- Prokaryotic cells lack a nucleus, nucleolus, and organelles.
- They only present plasmids, ribosomes, and genetic material in their cytoplasm.
- DNA not surrounded by membrane
- They have a cell wall that protects the cell and a cell membrane that surrounds the cytoplasm. Some of them can also present a capsule.
- Some of them have flagellum.
- These organisms are capable of inhabiting places with e<em>xtreme temperature, salinity, acidity, or pH, among others. </em>
<u>ANIMAL </u><u>AND </u><u>PLANT CELLS</u>
- Both the animal and plant cells are eukaryotic.
- They carry their genetic material in the nucleus and mitochondria.
- Organelles are located in the cytosol, and both of them are surrounded by a protector cell membrane.
However, they have some differences:
⇒Cell wall : <em>A </em><em>rigid structure</em><em> that provides </em><em>support </em><em>and </em><em>protection</em><em>.</em>
• Animal cells do not have a cell wall. They are only surrounded by the cell membrane, which is flexible so they can adopt different shapes.
• Plant cells have a wall, so their shape is usually prismatic and regular. The cell wall is composed mainly of cellulose.
⇒ Chloroplast: these are organelles that accumulate chlorophyll.
• Animal cells do not have chloroplasts because they do not photosynthesize.
• Plant cells have chloroplasts, and they are in charge of the photosynthesis process that allows plants to release oxygen. These organelles use solar light as the source of energy.
⇒ Vacuoles:
• Animal cells have many and small vacuoles whose function is to store water, ions, and waste intracellular substances.
• Plant cells have a unique big-sized vacuole that might occupy almost 90% of the cell. Their principal function is to store water and keep the turgidity. When the vacuole gets empty, the plant loses rigidity.
⇒ Other differences are:
- The animal cell has centrioles, while the vegetable cell does not.
- Plasmodium, chromoplasts, and glyoxysomes are present in the vegetable cell but not in the animal cell.
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The given question is incomplete however the complete question is attached in the form of an image.
Answer:
Water-wise cities -
Water management integrated into urban planning.
Full resources and energy used for wastewater treatment.
Local communities promote sustainable decision making.
Wasteful cities -
Local communities lack environmental awareness.
Almost all wastes dumped in landfills (This prevents wastes from getting recycled and also burdens the landfill's capacity.)
The Low percentage of stormwater separation
Explanation:
Water-wise cities are the cities that provide the proper management of the water including water treatment by utilizing full resources and energy. It helps in water management incorporated into urban planning. It is promoted by the local communities by sustainable decision making.
Wasteful cities are cities that have poor waste management. The local communities lack environmental awareness in such cities and dumped most of the wasted in open landfills and prevent recycling it and affect the ecosystem.
