Describe the structure, quantity, and function of erythrocytes. Name and describe the functions of the structures that make up the wall of the eyeball (three of them). Describe the cellular makeup and basic function of the tonsils. (a) Define chief cells. (b...
and functions. A sampling of the spectrum of cells that make up the body is illustrated inFigure 1.1.3. Almost all cells in the body have acell membrane, also called theplasma membrane, and most contain a nucleus. The simplest cell in the human is probably theerythrocyte, which is the ...
Name the various cell organelles and describe their functions. Describe the structure and function of eosinophil cells. Describe the structure and function of neutrophil cells. What is the function of B cells in the immune system? Describe the cellular makeup and basic function of the spleen. ...
Functions of PIWI proteins in gene regulation: new arrows added to the piRNA quiver. Trends Genet. 37, 188–200 (2021). Article CAS Google Scholar Rojas-Rios, P. & Simonelig, M. piRNAs and PIWI proteins: regulators of gene expression in development and stem cells. Development 145, dev...
All cells rely on cell signaling to detect and respond to cues in their environment. This process not only promotes the proper functioning of individual cells, but it also allows communication and coordination among groups of cells — including the cells that make up organized communities called ...
Shinya Yamanka made strides in stem cell research in 2006 when he was able to produce cells that have the same characteristics and genetic makeup as ESCs. This was done by temporarily over-expressing a combination of four factors of transcription, including, KLF4, MYC, OCT4 and SOX2 in fibr...
of life forms and are deeply rooted in our genetic makeup, the research invites us to reconsider fundamental concepts of cellular cooperation, competition, and the intricate nature of multicellularity. The study opens new avenues for research in evolutionary biology, oncology, and rege...
The plant cell wall is part of what helps plants stand up straight (at least, until they're so deprived of water that they start to wilt) and stand up to environmental factors like wind. It also functions as a semi-permeable membrane, allowing certain substances to pass into and out of...
variety of functions. A single phospholipid molecule has a phosphate group on one end, called the “head,” and two side-by-side chains of fatty acids that make up the lipid tails (Figure 1). The phosphate group is negatively charged, making the head polar and hydrophilic—or “water ...
36,53,54,55 However, little is known about the molecular makeup and functions of these ependymal subtypes. To explore ependymal cell heterogeneity in detail, we subset the ependymal cell cluster from the 10x dataset and integrated it with the Smart-seq2 dataset (Figures S2A and S2B). ...