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Plant and Animal Cells
Plant and Animal Cells

... organ - collection of tissues that work together to perform a particular function organ system - group of organs that function together to carry out a major activity of the body Extensions: The student could construct a model of either a plant or animal cell. The class could be divided so that some ...
Vacuoles
Vacuoles

... dissolve other components. • Protiens and other macromolecules will dissolve in cytosols. • Enzymes,which are biological catalyst are often found in the cytosol in order to speed up chemical reaction in the cell. • It also contains ions and inclusion bodies. ...
Body Systems Work Together
Body Systems Work Together

... tissue sends electrical signals. Muscle tissue helps you move. Connective tissue joins bones and cushions organs. When groups of tissues work together, they are called organs. Some examples of organs are the heart, lungs, skin, and stomach. When organs work together, they are called systems. For exa ...
Cells - Mrs. GM Biology 200
Cells - Mrs. GM Biology 200

... Why is there a limit to cell growth? ...
Cells - Mrs. GM Biology 200
Cells - Mrs. GM Biology 200

... • To keep surface area to volume ratio high • so diffusion can occur efficiently ...
Station 5 - Cell Cycle
Station 5 - Cell Cycle

... Which phase showed the largest number of active cells? Explain why this phase, of all the phases, would most likely have the most abundant number of active cells. Interphase has the largest number of active cells. Cells in an organism are dividing only when the organism needs to replace damaged cell ...
Lab 4-The Cell
Lab 4-The Cell

... Compare your models. Whichever group created an animal-like cell should point out the organelles unique to animal-like cells. Whichever group created a plant-like cell should point out the organelles unique to plant-like cells. Which organelle(s) are found only in the plant-like cell? ...
7. Plant Cell as a Restaurant PowerPoint plant_cell
7. Plant Cell as a Restaurant PowerPoint plant_cell

... for the cell.  Ribosomes do most of their work in the endoplasmic reticulum.  Think of ribosome as the cooks of the restaurant. They make the products or meals for the restaurant.  The ribosome are the black dots on the endoplasmic reticulum. ...
why don`t cells grow indefinitley
why don`t cells grow indefinitley

... of basketballs? What problems arise when a cell grows larger? Why does a cell divide into two smaller cells when it reaches a certain size? These are all questions that scientists have attempted to resolve. Cell division is a necessary part of the life of any multi-cellar organism and allows for gro ...
Global climate zones Id: an idealized simple view
Global climate zones Id: an idealized simple view

... Atmospheric circulation is driven by rising of warm air at the equator (at the latitude of maximal solar heating) and by sinking of cold air at the poles (at the latitude of minimal heating). On Earth, the air that has risen from the equator sinks at about 30° N and S, and some of that air returns a ...
DEFINITION OF A STEM CELL
DEFINITION OF A STEM CELL

... 1. Self-renewing - can give rise to daughter cells that are stem cells 2. Give rise to differentiated progeny - daughter cells can also differentiate, usually into multiple lineages ...
Chapter 1
Chapter 1

... distinguished on the basis of their structure and the complexity of their organization. ● Fungi and protozoa are eukaryotic, whereas bacteria are prokaryotic. (1) The eukaryotic cell has a true nucleus with multiple chromosomes surrounded by a nuclear membrane. (2) The nucleoid of a prokaryotic cell ...
Cell Structure and Transport
Cell Structure and Transport

... arranged in a very special way. When two centrioles are found next to each other, they are usually at right angles. ...
plants and other photosynthetic organisms
plants and other photosynthetic organisms

... – Catabolism: Breaks down larger molecules into to make energy (i.e., Cellular Respiration) – Anabolism: Uses energy to create larger molecules in cells (i.e., Photosynthesis) ...
cells and organelles 2016
cells and organelles 2016

... through the cell and produces proteins in sacks called cistern which are sent to the Golgi body, or inserted into the cell membrane. The Golgi apparatus or Golgi complex is a flattened, layered, sac-like organelle that looks like a stack of pancakes. The Golgi body modifies & packages proteins and c ...
Learning objectives
Learning objectives

... Learning Objectives for Campbell/Reece Biology, 8th Edition, © Pearson Education, Inc. ...
Snímek 1
Snímek 1

... Subsequently, Xist RNA coats the entire chromosome in cis thus facilitating gene silencing through the recruitment of repressive factors (polycomb repressor proteins, specific histone variants, CpG island methylation of promoter regions, …) that modify the chromatin structure. These multiple modific ...
Handout
Handout

... b) Given that the green cell is a stem cell, can you tell whether it is totipotent or pluripotent? Explain your answer. ...
Select this.
Select this.

... Subsequently, Xist RNA coats the entire chromosome in cis thus facilitating gene silencing through the recruitment of repressive factors (polycomb repressor proteins, specific histone variants, CpG island methylation of promoter regions, …) that modify the chromatin structure. These multiple modific ...
Chapter 6 learning objectives
Chapter 6 learning objectives

... Learning Objectives for Campbell/Reece Biology, 8th Edition, © Pearson Education, Inc. ...
Chapter Six
Chapter Six

... Learning Objectives for Campbell/Reece Biology, 8th Edition, © Pearson Education, Inc. ...
Cell Model Foldable
Cell Model Foldable

... a. Label and accurately draw the following structures:  Plasma Membrane  Cytoplasm  Rough Endoplasmic Reticulum  Smooth Endoplasmic Reticulum  Nucleus  Nuclear Membrane (Envelope)  Nucleolus – page 197  Nuclear Pores – page 197  LOTS of Ribosomes (free and attached) ...
Chapter 31
Chapter 31

... a) As a woody plant grows, the epidermis is lost and replaced by periderm b) Periderm is a complex tissue made of cork cells and cork parenchyma cells c) Cork cells are dead at maturity and function in waterproofing d) Cork parenchyma cells function in storage Plants exhibit localized growth at meri ...
Notes – Limits to Cell Growth and the Cell Cycle There are two main
Notes – Limits to Cell Growth and the Cell Cycle There are two main

... and they continue to move until they have separated into _______ groups. 4. Telophase- Chromosomes gather at ___________ ends of the cell and lose their distinct shape. A new ________ envelope forms around each cluster of chromosomes. Cytokinesis The cytoplasm _________ in half and each daughter cel ...
An interactive journey into the cell
An interactive journey into the cell

... Cell WEBQUEST: An interactive journey into the cell! Answer the following questions. You do not have to answer these questions in complete sentences, but your answers should be complete with details and information! ...
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Cellular differentiation



In developmental biology, cellular differentiation isa cell changes from one cell type to another. Most commonly this is a less specialized type becoming a more specialized type, such as during cell growth. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types. Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover. Some differentiation occurs in response to antigen exposure. Differentiation dramatically changes a cell's size, shape, membrane potential, metabolic activity, and responsiveness to signals. These changes are largely due to highly controlled modifications in gene expression and are the study of epigenetics. With a few exceptions, cellular differentiation almost never involves a change in the DNA sequence itself. Thus, different cells can have very different physical characteristics despite having the same genome.A cell that can differentiate into all cell types of the adult organism is known as pluripotent. Such cells are called embryonic stem cells in animals and meristematic cells in higher plants. A cell that can differentiate into all cell types, including the placental tissue, is known as totipotent. In mammals, only the zygote and subsequent blastomeres are totipotent, while in plants many differentiated cells can become totipotent with simple laboratory techniques. In cytopathology, the level of cellular differentiation is used as a measure of cancer progression. ""Grade"" is a marker of how differentiated a cell in a tumor is.
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