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Which organelle is surrounded by two membranes?
Nucleus and Mitochondria. all the orgenelles are: vacuole, nucleus, nucleolus, Golgi body, endoplasmic reticulum, ribosome, chromatin, nuclear envelope, cell membrane, mitochondria, cytoplasm,and lysosomes for an animal cell, What you mean by surrounded by 2 membranes idk
Why do Biologists suspect endosymbiosis gave rise to mitochondria before plastids?
Biologists suspect that mitochondria arose before plastids through endosymbiosis because mitochondria are present in almost all eukaryotic cells, while plastids are only found in photosynthetic eukaryotes. Additionally, mitochondria share more structural and functional similarities with their bacterial ancestors than plastids do.
Do All membranes have exactly the same permeability characteristics?
No, all membranes do not have exactly the same permeability characteristics. Different membranes can have varying levels of permeability to different substances based on their structure and composition. Some membranes may be more selective in what substances they allow to pass through, while others may be more permeable.
Are cell membranes in prokaryotic and eukaryotic cells different in structure and function?
Yes, cell membranes in prokaryotic and eukaryotic cells have similar structures but differ in some aspects of their functions. Prokaryotic cell membranes lack membrane-bound organelles, while eukaryotic cell membranes contain them. Both types of cell membranes regulate the passage of substances in and out of the cell, but eukaryotic cell membranes are more complex due to the presence of organelles.
Why are folded membranes in cells more effective than unfolded membranes?
Folded membranes in cells are more effective because they have more surface area. The wider area of space allows for more activity to occur without damage to the cell because of membrane's resistance.
Where does the light reaction of photosynthesis occur?
In the plant's leaves or wherever the plant has chloroplasts. More specifically, the light reactions take place on the thylakoid membranes in the chloroplasts. The light reactions can also take place on the plasma membranes of the cells (as with cyanobacteria) or in other plastids.
Which organelle is surrounded by two membranes?
Nucleus and Mitochondria. all the orgenelles are: vacuole, nucleus, nucleolus, Golgi body, endoplasmic reticulum, ribosome, chromatin, nuclear envelope, cell membrane, mitochondria, cytoplasm,and lysosomes for an animal cell, What you mean by surrounded by 2 membranes idk
How many types dialyzer membrane?
There are two main types of dialyzer membranes used in dialysis: cellulose-based membranes and synthetic membranes. Cellulose-based membranes are more biocompatible but have a higher risk of allergic reactions, while synthetic membranes are less biocompatible but are more efficient at removing toxins.
Do All membranes have exactly the same permeability characteristics?
No, all membranes do not have exactly the same permeability characteristics. Different membranes can have varying levels of permeability to different substances based on their structure and composition. Some membranes may be more selective in what substances they allow to pass through, while others may be more permeable.
Why do Biologists suspect endosymbiosis gave rise to mitochondria before plastids?
Biologists suspect that mitochondria arose before plastids through endosymbiosis because mitochondria are present in almost all eukaryotic cells, while plastids are only found in photosynthetic eukaryotes. Additionally, mitochondria share more structural and functional similarities with their bacterial ancestors than plastids do.
What part of the plant is the?
Other than the cells themselves, the mitochondria (or perhaps other plastids), are much smaller and more numerous.
How are muscle fibers and membranes organized to form a whole skeletal muscle?
A muscle is made of tiny fibers. First it starts with one fiber that is surrounded by a layer of endomysium (connective tissue). Next a few more single strands of fibers are added to this one and wrapped around that is a layer of perimysium. this group of fibers is called a fasicle. then a bunch more fasicles get added to this one and is surrounded by a layer of epimysium. this creates the entire skeletal muscle.
What does osmosis have to do with cell membranes?
Osmosis is the water molecules diffusion across the cell membranes. More informations can be find at en.wikipedia.org/wiki/Diffusion
What is the smallest part of plant?
Other than the cells themselves, the mitochondria (or perhaps other plastids), are much smaller and more numerous.
What has a more vigorous effect on cell membranes acid temperature or alcohol?
Alcohol affects the permeability of the cell membranes. It would have the most vigorous effect.
What should you do if you have more evidence against your position?
you should find more supporting evidence!
How are organisms in the domain Eukarya different from those in the domain Archaea?
Archaea have no nucleus
