Answer: The percentage of unknown material has grown in scientists estimates since the 1970’s; the percentage of dark matter has shrunk in scientists estimates since the 1980s
Explanation:
The correct option is : "Golgi apparatus"
What is endoplasmic reticulum?
Endoplasmic reticulum (ER), a continuous membrane structure in biology, is vital for the synthesis, folding, modification, and transport of proteins. It forms a series of flattened sacs within the cytoplasm of eukaryotic cells. An endoplasmic reticulum can be found in all eukaryotic cells (ER). The ER typically makes up more than 50% of the cell's membranous composition in animal cells. The two forms of ER, known as rough ER and smooth ER, can be distinguished by differences in certain morphological and functional properties.
Organelle; endoplasmic reticulum Organelle; endoplasmic reticulum
Tomonori Naguro and Pietro M. Motta/Science Source
Due to the ribosomes connected to its exterior (cytoplasmic) surface, rough ER is so named because of its rough look.
Learn more about the endoplasmic reticulum with the help of the given link:-
brainly.com/question/24215999
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The mitochandria's main function is to produce ATP through cellular respiration.
Answer:
Number <u>3</u> is the chloroplast. The chloroplast helps the plant obtain food by <u>photosynthesis</u>. Number <u>1</u> is the central vacuole. The central vacuole helps a plant maintain its structure by <u>turgor pressure</u>.
Answer:
It is the varying chemical structure and properties of the R-group that make the amino acids different from one another. About 9 amino acids have non-polar R-groups and are relatively hydrophobic. Another 6 amino acids have strongly polar R-groups which readily attract water molecules.
