Answer:
16. Give the main function of each of the organelles listed below. Also, choose from the list on the bottom at least one phylum that has organisms which possess the organelle.
Organelle:
Food vacuole
Contractile vacuole
Flagellum
Pellicle
Chloroplast
Eyespot
Cilia
Nucleus
Oral groove
Plylum:
Sarcodina
Matigophora
Ciliophora
Sporozoa
Chlorophyta
Chrysophyta
Pyrrophyta
Phaeophyta
Rhodophyta
Explanation:
<span> They are unable to pass through the plasma membrane and have different methods of action. They attach to their receptors in the target cell surface and influence activity within the cell through cytoplasmic intermediates called second messengers. </span>
<span>The two most important messengers are cAMP and inositol triphosphate. </span>
<span>Cyclic AMP: ATP is converted into cAMP after a series of reactions on the plasma membrane following the attachment of the hormone to the membrane. cAMP relays the signal from the membrane to the metabolic machinery of the cytoplasm. </span>
<span>Inositol Triphosphate: Involves the use of Ca+2 that regulates cellular protein activity.
</span>
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Answer:
d
Explanation:
please give brainlest need 2 more
Answer and Explanation:
UGA, UAG and UAA are the stop codons in the genetic code. During translation, these stop codons signal the end of the polypeptide chain. These codons do not code for an amino acid. Therefore they are called termination codons or nonsense codons. These stop codons have been called as ochre (UAA), amber (UAG) and umber or opal (UGA). Richard Epstein and Charles Steinberg revealed Amber (UAG). They named it amber while remaining two stop codons named as ochre (UAA) and opal (UAG) to maintain the theme of ‘colors names’. Stop codons release the new polypeptide chain from the ribosome, during protein synthesis. This happens because there are no tRNAs with anticodon corresponding to the stop codon.
Answer:
Stigma
Explanation:
Stigma – The head of the pistil. The stigma receives pollen, which will begin the process of fertilization.
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