The procedure by which the parent cell's cytoplasm is differentiated into two daughter cells produced either through meiosis or mitosis is known as cytokinesis. This is also called cell cleavage or cytoplasmic division. The initiation of cytokinesis takes place in anaphase stage in animal cells and prophase in plant cells, and culminates in both in telophase stage, to produce the two daughter cells.
The process of cytokinesis occurs in four stages, that is, initiation, contraction, membrane insertion, and completion. The occurrences taking place within these stages vary in plant and animal cells.
Exchange of gases between alveoli and the bloodstream ( Option C )
Internal respiration is the process of exchanging gases ( i.e. carbon dioxide and oxygen ) between the bloodstream and the alveoli of an organism. as seen in human.
- Internal respiration ( exchange of gases) occurs between Alveoli and the bloodstream. While
- External respiration occurs between the atmosphere and the alveoli.
Also the Alveoli is important in both external and internal respiration. but for internal respiration, the alveoli exchanges gases with the bloodstream before it is passed to the internal issues .
Hence we can conclude that the true statement about internal respiration is ; Exchange of gases between the alveoli and the bloodstream.
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I believe the answer is the limbic system.
The limbic system is the portion of the brain that deals with emotions, memories and the arousal or stimulation. It consists of the amygdala, hippocampus, thalamus, hypothalamus, basal ganglia, and cingulate gyrus. The amygdala is the emotion center, the hippocampus plays a role in the formation of new memories about past experiences.
Answer:
a. At the cytosol surface
Explanation:
- The G protein coupled receptors have seven transmembrane alpha helices and because of this they are able to pass through the cell membrane seven times.
- Like every protein, this receptor also has to terminals - one is the N-terminus and the other is the C-terminus.
- The N-terminus is the amino end of the receptor whereas the C-terminus is the carboxyl end of the receptor.
- The N-terminus lies on the extracellular side and then it crosses the membrane 7 times such that the C-terminus faces the inside that is towards the cytosol.
- The fact that the loop on the cytosol side between helices 5 and 6 helps us to know that the 7th loop must go outside and by coming back in the C-terminus would eventually face the cytosol.