Lecture Five :Endomembrane System & Bulk Transport Processes
10 important questions on Lecture Five :Endomembrane System & Bulk Transport Processes
What is meant by the Endomembrane System and outline what organelles they include ?
The organelles included are :
- Nuclear envelope
- Endoplasmic Reticulum (Smooth and Rough)
- Golgi Apparatus
- Vesicles
- Plasma membrane
- Lysosomes (animal cells)
- Vacuoles (plant cells)
What are the functions of the Smooth Endoplasmic Reticulum (sER) ?
- Metabolism of carbohydrates
- Lipid synthesis for membranes
- Detoxification of drugs and poisons
- Storage (and release) of calcium ions, which is used as a signal in the cell
What is a Rough Endoplasmic Reticulum and its function ?
Functions are :
- Involved in protein synthesis.
- Secretes membrane-bound proteins that enter the lumen of the rER.
- Higher grades + faster learning
- Never study anything twice
- 100% sure, 100% understanding
For my 1st exam I got a C. Then, I started looking for ways to learn better and I came across Study Smart. Since then I have scored a A+, A, A- and another A. I highly recommend it to everyone who wants to hear it. I am so happy with it!!
I was struggling to finish all my first-year subjects for 3 years. Then I discovered Study Smart, which helped me to finish all of them within 3 months.
Because of StudySmart, things are going well in many ways. Before, I always had study stress and no time for anything. Now I feel calm and confident (because of the program). I used to score a B, now I usually score an A or A+.
Hey Chris, I really want to thank you very much for developing the platform, I usually got around C for my exams, now I scored an A+, an A and a A- !!
Since using Study Smart, my average has increased significantly. I even completed a statistics course with a A+ while I'm bad at statistics. I took on extra courses this year, because of Study Smart. Thanks so much!
Ever since I started studying with StudySmart I passed all my exams !!! No more re-sits!! At first, I was happy with a pass and now I only get good grades. Many thanks!
I aced all the courses I studied with Study Smart. For law, I first scored a D, and now an A! I’m 100% sure that I’ll pass all the courses I study with Study Smart.
I always thought I studied well. My grades were fine. I could never have imagined that applying these study skills would have such a huge and direct impact on my grades, my speed and the pleasure I have in learning.
For the first time, I finally feel totally confident about the way I learn. I have the perfect overview and make great progress in terms of speed and the grades I get. Thanks, Chris!
I immediately started to enjoy learning again, and my grades soared. All of a sudden, everything went better. I highly recommend Study Smart to all students..
Being able to create my materials online made the process of studying so much smoother and quicker. I no longer have to spend a huge amount of my time on creating my summaries.
At first, my notes were a mess. Now I use Study Smart to take my notes in a perfectly structured way. It helps me to save a lot of time and do other things I enjoy.
Students that study with Study Smart get better grades. The system applies all the learning methods in such a way that both well-performing students and students who struggle perform much better.
Hi Chris, I would like to thank you very much. Last year I scored C on a course, and this year I got an A+ thanks to your method! Thank you very much!
The largest effect is that my child is more enthusiastic about school! Every parent wants their children to be happy at school, Study Smart made it happen.
In high school, I failed several exams, and that has really changed now. I actually needed this tool very much back then. Since I started studying with StudySmart, I haven't had any D's. My average score is now an A and those are results I would have never had in the past
With my old method, I passed only 3 out of 8 courses. Since I started taking my notes digitally in Study Smart, I have passed all my courses on the first try. For me, StudySmart takes away the stress of wondering if I will pass or not.
Thanks to StudySmart, I passed all my exams, and with better grades than before! On top of that, I have mastered a very good study method now, which I am confident will help me earn my degree.
What is a Golgi Apparatus and its function ?
It has polarity because it contains two distinct faces where different things are occurring.
- "CIS" face : vesicles arriving
- "TRANS" face : vesicles leaving
Main function is that the Golgi apparatus receives, modifies, sorts and ships proteins arriving from the rough endoplasmic reticulum.
What are vesicles and its function ?
Proteins are packed into these vesicles which are then transported to the Golgi Apparatus.
Main function is transportation.
What is a lysosome and its function ?
Function :
- Digest and recycle unwanted cellular materials.
Explain the structure of the Vacuole and its functions ?
Functions :
- Can perform lysosome-like functions
- Large central vacuoles absorbs water allowing plant cells to grow without a large increase in cytoplasm.
Explain the Bulk Transport processes of exocytosis - Constitutive and Regulated
CONSTITUTIVE :
It is an ongoing relatively unregulated process. It is where the proteins made are secreted to outside of the cell.
REGULATED :
This is more tightly regulated because the vesicles contain substances that is secreted, it changes the environment outside the cell.
Explain the Bulk Transport processes of Endocytosis - Phagocytosis and Pinocytosis
PHAGOCYTOSIS : cell "eating"
- Pseudopodia outstretch, fuses and encases the food or bacteria.
- This forms a phagocytic vacuole which is digested by the lysosomes. In humans , this occurs in macrophages.
- This is a drink of solutes from outside the cell.
- After a Pina colada, there is not much regulation or control.
Explain the Bulk Transport Process - Receptor mediated Endocytosis
Receptor proteins are used to selectively capture the required solute.
Try our study magic for free
a PDF, study it super fast
- No sign up, email or credit card needed!
- AI makes unlimited flashcards
- Get unlimited quizzes and tests
- Ask AI anything
- No sign up, email or credit card needed!
- Have and keep perfect overview
- Make flashcards, notes and mind maps
- Review, test and score!
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
