Plasma Membrane. What is the composition of plasma membrane (PM) of a bacterial cell? How does...

Plasma Membrane. What is the composition of plasma membrane (PM) of a bacterial cell? How does this compare to a eukaryotic cell? List the functions of the PM. Without complex internal membranes, where do prokaryotes carry out membrane-bound chemical reactions such as ATP synthesis or photosynthesis?

Solutions

Expert Solution

A) Composition of plasma membrane (PM) of a bacterial cell :

Plasma membrane of a bacterial cell is composed of a bilayer made of phospholipids. It also consists of proteins:

- peripheral proteins : These proteins function to use enzymes to catalyze reactions and support membrane shape.

- integral proteins : These proteins used as channels for transporter in signal transduction.

B) Comparison to a eukaryotic cell :

Bacterial cells have ATP in Plasma membrane and eukaryotic cells have chloroplasts.

C) Functions of the PM :

- Plasma membrane is selective barrier.

- contains pigments for photosynthesis.

- breaks down nutrients and produce ATP.

- PM also regulates movement via simple diffusion, osmosis etc. Here, production of energy takes place.

D) Without complex internal membranes, prokaryotes carry out membrane bound chemical reactions such as ATP synthesis or photosynthesis in the plasma membrane foldings.

gladiator answered 1 year ago

Next > < Previous

Related Solutions

Explain the composition of the bacterial cell envelope including plasma membrane (Gram-&+), cell wall (Gram-&+) and...

Explain the composition of the bacterial cell envelope including plasma membrane (Gram-&+), cell wall (Gram-&+) and outer membrane (only Gram-) as well as their individual components. Compare Gram+ and Gram- with regards to differences & similarities.

What is the lipid composition of a normal human cell’s plasma membrane (choose a cell type)?...

What is the lipid composition of a normal human cell’s plasma membrane (choose a cell type)? Describe and draw, in detail, the chemical structure of a lipid from your choice.

9) The site of the bacterial cell where ATP is produced is the: a) plasma membrane...

9) The site of the bacterial cell where ATP is produced is the: a) plasma membrane b) cell wall c) flagella d) nuclear region e) cytoplasm 44) Which of the following is regulated by an operator: a) DNA sythesis b) protein synthesis c) RNA synthesis d) b and c e) all of the above 44) Which of the following is regulated by an operator: a) DNA sythesis b) protein synthesis c) RNA synthesis d) b and c e) all of...

How does the molecular composition of the parts of a bacterial cell envelope determine their functions?

What is the difference between a plasma membrane and a cell wall?

1. Prokaryotic (Bacterial) Cell -Organelle Cell Function ½. Ribosome: Nucleoid Region: Plasma Membrane: 2. Eukaryotic (Animal...

1. Prokaryotic (Bacterial) Cell -Organelle Cell Function ½. Ribosome: Nucleoid Region: Plasma Membrane: 2. Eukaryotic (Animal and Plant) Cell--Organelle Cell Function ½ Cytoskeleton: Centrioles: Lysosome: Cytoplasm: Nucleus: Rough Endoplasmic Reticulum: Smooth Endoplasmic Reticulum: Ribosome: Mitochondria: Golgi complex: Chromatin: Cell wall: Flagellum: 3. List the various Membrane Proteins?

What are the functions of the plasma membrane? How does the function differ between bacteria and...

What are the functions of the plasma membrane? How does the function differ between bacteria and eukaryotic cells? How does DNA differ between bacteria and eukaryotic cells? What is the function of ribosomes? What is the composition of ribosomes? How does it differ between prokaryotes and eukaryotes? What is a cytoplasm? What are the 2 main classes of reactions in cells? What is the energy currency of cells? Why? Be able to explain this in terms of structure. What is...

what is a colony and and how does it relate to a bacterial cell? why is...

what is a colony and and how does it relate to a bacterial cell? why is it important to study single colonies of bacteria? what are the advantages of growing bacteria on a plate vs broth? how can you tell whether the colonies on your plate are from the original culture and not contaminants?

1-Give any two differences between archaea plasma membrane VS the bacterial and eukaryotic membrane. 2-What is...

1-Give any two differences between archaea plasma membrane VS the bacterial and eukaryotic membrane. 2-What is difference between the L wall of gram-positive and negative bacteria? 3-Name any 2 structures that are outside the prokaryotic cell wall? 4- what is the difference between amphitrichous and peritrichous flagellar arrangement? 5- what are the general function of a cell wall in a eukaryotic cell?

Consider a hypothetical cell whose plasma membrane is impermeant to everything. The membrane is studded with...

Consider a hypothetical cell whose plasma membrane is impermeant to everything. The membrane is studded with channel proteins for Ca2+, but these channels are initially closed. The concentration of Ca2+ outside the cell is 100 mM and the concentration of Ca2+ inside the cell is 1 mM. Initally, the membrane potential is 0 mV. After a while, the net flow of Ca2+ ceases because dynamic equilibrium has been reached. What is the membrane potential of the cell when it reaches...

Subjects