Answer:
What best describes how transferrin is transported through the erythrocyte plasma membrane is receptor-mediated endocytosis.
Explanation:
The incorporation of transferrin across the erythrocyte membrane depends on a transferrin receptor expressed on the surface of the membrane. The specific receptor recognizes the presence of iron-charged transferrin, transferin diferrica, incorporating it into the cell by endocytosis. Once in the cytoplasm, the iron is dissociated from the transferrin.
Free transferrin is called apotransferrin. The transferrin receptor has a high affinity for transferrin di-ferrica, which facilitates its incorporation by endocytosis, and the release of apotransferrin into the extracellular space.
The other options are not correct because:
<em> A. </em><u><em>Exocytosis</em></u><em> implies the exit of substances from the cell.</em>
<em> B. </em><u><em>Pinocytosis</em></u><em> involves the invagination of the membrane to incorporate soluble substances into the cell.</em>
<em> C. </em><u><em>Phagocytosis</em></u><em> is the incorporation of solid substances by invagination of the membrane.</em>
Answer:
1) mitochondria
2) Golgi apparatus
3) rough endoplasmic reticulum
4) nuclear envelope
5) ribosomes
6) plasma membrane
7) smooth endoplasmic reticulum
8) lysosome
9) cytoplasm
10) chromatin
11) nucleolus
12) nucleus
13) centrioles
Explanation:
Some strengths are,
you get faster at answering questions, it’s easier to understand the problems, you have more strategy’s, you understand the ration and percent. you can use graphs and number lines much easier.
i’m doing mental math right now and this is what we were going over,
i hope it helps
In some protists, genetic information is transferred from one cell to the next. This transfer is called Internal fertilization
Hope this helps!
-Payshence xoxo
Answer:
The correct answer is option d. "metapopulation".
Explanation:
A metapopulation is defined as a group of different populations living at different geographical regions but consisting of the same species. Usually the subpopulations of the metapopulation are separated by some barriers, but the individuals from one subpopulation interact with the individuals of the others regularly. This is the case of the Rocky Mountain Parmassian butterfly, whose individuals live on separate meadows in Alberta but can fly among meadows and interact among them.
