• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Cell Size Limitations Notes1
Cell Size Limitations Notes1

... volume ratio limits cell size • As a cell increases, it volume increases much faster than its surface area • If a cell doubled, the cell would require 8X more nutrients and have 8X more waste to get rid of FYI – If E.coli were left unreglated, it could engulf the Earth in one day because it doubles ...
Media –Rich Lesson Plan - Prairie Public Broadcasting
Media –Rich Lesson Plan - Prairie Public Broadcasting

... into the classroom to introduce topic. It is short so it can be played a couple times. (I also like to play the song again at the end of class and maybe even at the beginning of Day 2 of this project!) ...
1 - Hamilton Local Schools
1 - Hamilton Local Schools

... Gradients allow materials to move across membranes, from an area of high concentration to an area of low concentration. Particles and water can diffuse across these selectively permeable membranes to allow for nutrients to come into a cell or to move wastes out of a cell. 5. What is the explanation ...
section 1 - Biology Resources
section 1 - Biology Resources

... Among the products of biotechnology is the 'biological' washing powder. Enzymes made by bacteria grown in massive fermenters can digest away stubborn stains on clothing, even in tepid water, and thus lower the cost of cleanliness. Enzymes in washing powders have a long history, but they were not int ...
Prokaryotes vs. Eukaryotes
Prokaryotes vs. Eukaryotes

... Eukaryotic cells are cells that contain a nucleus. Eukaryotic cells are usually larger than prokaryotic cells, and they are found mainly in multicellular organisms (although there are some unicellular eukaryotes). Organisms with eukaryotic cells are called eukaryotes, and they range from fungi to pe ...
Cells and Their Environment Chapter 8
Cells and Their Environment Chapter 8

... Because there is water on the inside and the outside of the cell, the phospholipids form a double layer called the lipid bilayer. • Lipid bilayer--the basic structure of a biological membrane, composed of two layers of phospholipids. • The polar heads are attracted to water, so they point toward the ...
The bacterial cell envelope - Philosophical Transactions of the
The bacterial cell envelope - Philosophical Transactions of the

... the type III secretion system [13], and the type VI secretion system used by bacteria to kill each other during inter- and intraspecies competition [14]. Given the rate of progress in understanding the bacterial cell envelope since van Leeuwenhoek’s time, we can only imagine what the next 350 years ...
Framework for Cell division 2
Framework for Cell division 2

... When watching the yeast cells under the microscope, do all cells look the same? If the cells do not look the same, what is happening? Explain why the cells in a person’s body are all genetically identical? If meiosis did not occur, why would sexual reproduction be a problem? Can you describe the sta ...
anatomy - Charles City Community School District
anatomy - Charles City Community School District

... cells containing two copies of each chromosome (and, therefore, two copies of each gene); this explains many features of human heredity, such as how variations that are hidden in one generation can be expressed in the next Knows that concentrated mixture of thousands of different molecules within th ...
Structure of Bacteria
Structure of Bacteria

... • DNA attaches itself to the cell membrane, and copies itself. • The membrane grows, and then the cell divides into two equal parts. • Each part contains a copy of the DNA • The cells are identical (clones) ...
Chapter 2: Patterns of Associations
Chapter 2: Patterns of Associations

...  Two kinds of endoplasmic reticulum • Rough ER (with ribosomes) that modifies proteins • Smooth ER (no ribosomes) makes lipids, breaks down carbohydrates and lipids, detoxifies poisons ...
Discovery of Cells and Cell Theory
Discovery of Cells and Cell Theory

... proteins and produces fats that are sent to other cell ...
Eukaryotic Cells - Westerville City Schools
Eukaryotic Cells - Westerville City Schools

... As we discussed in class, the most common cell on earth is prokaryotic. The one you are most familiar with though is eukaryotic. It’s most familiar because it’s what you are. Everything we see and interact with on a daily basis is eukaryotic from fish to humans to dogs and cats and birds and even mo ...
Chapter 4 Functional Anatomy of Prokaryotic and Eukaryotic Cells
Chapter 4 Functional Anatomy of Prokaryotic and Eukaryotic Cells

... complement (also part of host defenses). When the cell disintegrates in the host’s bloodstream, the lipid portion of the LPS (Lipid A) is released as an endotoxin that can cause illness. Materials may penetrate the outer membrane through channels called porins. Mycoplasma bacteria do not have cell w ...
Folic acid
Folic acid

... pathway – Folic acid needed for synthesis of nucleotides • Selectively toxic: folic acid is a human vitamin – Failure to synthesize DNA bacteriostatic – Resistance common • Mutation in enzyme easy • Reduced drug uptake also occurs ...
C - Anderson High School
C - Anderson High School

... 7. Circle the letter of the sentence that best explains what osmosis is. A. Osmosis is the movement of water across a membrane from where it is in high amounts to low amounts. B. Osmosis is the movement of water across a membrane from where it is in low amounts to high amounts. C. Osmosis is the mov ...
Brief Introduction to Animal and Plant Cells NAME: ANIMAL CELLS
Brief Introduction to Animal and Plant Cells NAME: ANIMAL CELLS

... Plant cells are the building blocks of plant tissue. They are usually very small and require a microscope to be seen. They often appear green because many plant cells contain the green pigment chlorophyll. Plant cells can do many different jobs, including working as root cells absorbing water or as ...
Chapter 3 USU - BEHS Science
Chapter 3 USU - BEHS Science

... Many biological molecules are macromolecules – huge assemblies of atoms. Biological macromolecules are formed by linking together a set of building blocks (monomers) into long chains (a polymer). ...
Cell: The Basic Unit of Life
Cell: The Basic Unit of Life

... discard waste materials. Cells replicate themselves. That means they can reproduce an exact copy of themselves. The new copy can do all the same things as the original cells. A living cell can produce another living cell. Life keeps itself going. Where did the first cell come from? Nobody knows wher ...
Exploring Living Things
Exploring Living Things

... (a) Gram-positive bacteria: peptidoglycan traps crystal violet. ...
FUNDAMENTAL UNIT OF LIFE
FUNDAMENTAL UNIT OF LIFE

...  Large and complex cells, including cells from multicellular organisms, need a lot of chemical activities to support their complicated structure and function. To keep these activities of different kinds separate from each other, these cells use membrane-bound little structures (or ‘organelles’) wit ...
Apoptotic cell death signaling in the Human Colon Cancer Cell line
Apoptotic cell death signaling in the Human Colon Cancer Cell line

... silencing technique (short interfering RNA- “siRNA”), targeting the DISC regulatory protein Flip (FLICE (Caspase-8) like inhibitor protein) and by creating a stable cell expressing a dominant negative FADD (FAS- associated death domain) protein. Further analyses defined DR5 (Death receptor 5) as the ...
Section 2: Energy Flow in Ecosystems
Section 2: Energy Flow in Ecosystems

... • The sodium-potassium pump is a carrier protein that actively transports three sodium ions out of the cell and two potassium ions into the cell. • This pump is one of the most important carrier proteins in animal cells. It prevents sodium ions from building up in the cell, resulting in osmosis into ...
Section 2: Energy Flow in Ecosystems
Section 2: Energy Flow in Ecosystems

... • The sodium-potassium pump is a carrier protein that actively transports three sodium ions out of the cell and two potassium ions into the cell. • This pump is one of the most important carrier proteins in animal cells. It prevents sodium ions from building up in the cell, resulting in osmosis into ...
Mitochondria
Mitochondria

... in the cytosol and a few from their own ribosomes. • Both organelles have small quantities of DNA that direct the synthesis of the polypeptides produced by these internal ribosomes. • Mitochondria and chloroplasts grow and reproduce as semiautonomous organelles. ...
< 1 ... 530 531 532 533 534 535 536 537 538 ... 1009 >

Endomembrane system

The endomembrane system is composed of the different membranes that are suspended in the cytoplasm within a eukaryotic cell. These membranes divide the cell into functional and structural compartments, or organelles. In eukaryotes the organelles of the endomembrane system include: the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, endosomes and the cell membrane. The system is defined more accurately as the set of membranes that form a single functional and developmental unit, either being connected directly, or exchanging material through vesicle transport. Importantly, the endomembrane system does not include the membranes of mitochondria or chloroplasts.The nuclear membrane contains two lipid bilayers that encompass the contents of the nucleus. The endoplasmic reticulum (ER) is a synthesis and transport organelle that branches into the cytoplasm in plant and animal cells. The Golgi apparatus is a series of multiple compartments where molecules are packaged for delivery to other cell components or for secretion from the cell. Vacuoles, which are found in both plant and animal cells (though much bigger in plant cells), are responsible for maintaining the shape and structure of the cell as well as storing waste products. A vesicle is a relatively small, membrane-enclosed sac that stores or transports substances. The cell membrane, is a protective barrier that regulates what enters and leaves the cell. There is also an organelle known as the Spitzenkörper that is only found in fungi, and is connected with hyphal tip growth.In prokaryotes endomembranes are rare, although in many photosynthetic bacteria the plasma membrane is highly folded and most of the cell cytoplasm is filled with layers of light-gathering membrane. These light-gathering membranes may even form enclosed structures called chlorosomes in green sulfur bacteria.The organelles of the endomembrane system are related through direct contact or by the transfer of membrane segments as vesicles. Despite these relationships, the various membranes are not identical in structure and function. The thickness, molecular composition, and metabolic behavior of a membrane are not fixed, they may be modified several times during the membrane's life. One unifying characteristic the membranes share is a lipid bilayer, with proteins attached to either side or traversing them.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report