-
Anonymous users2024-02-061. Like nuclear genes, they are expressed through transcription and translation, and these organelles have corresponding enzymes and amino acids, and the proteins expressed are generally used in and within the inner membrane.
2. There are indeed differences, but there are very few genes in this part of the cell and they do not affect the function of the whole cell.
-
Anonymous users2024-02-05The difference between chloroplast and mitochondria is:
1. The forms of the two are different:
The morphology of chloroplasts is reticulated, banded, lobe, and star-shaped, and the morphology of mitochondria is globical, rod-like, or filamentous granules;
2. The functions of the two are different:
The function of chloroplasts is that chloroplasts absorb light energy and convert it into chemical energy, while using carbon dioxide and water to make organic matter and release oxygen, and the function of mitochondria is responsible for the final oxidation, which corresponds to aerobic respiration.
Phase II and III;
3. The size of the two is different
The chloroplast has a long diameter of 5-10um, a short diameter of 2-4um, a thickness of 2-3um, and the size of mitochondria is 1-2 m long.
-
Anonymous users2024-02-04According to the most popular theories nowadays, mitochondria and chloroplasts originate from endosymbiosis.
It is speculated that mitochondria originated from endosymbiosis. According to this view, aerobic bacteria may have evolved into the current mitochondria in a long-term mutually beneficial symbiosis after being engulfed by primitive eukaryotic cells. In the process of evolution, aerobic bacteria gradually lost their independence and transferred a large amount of genetic information to the host cell, forming a semi-autonomous mitochondria.
Paleontologists have theorized that chloroplasts may have originated from ancient cyanobacteria. Some ancient eukaryotes survived by devouring other organisms, and some of the cyanobacteria they swallowed were not digested and instead relied on the domestic waste of the devourers to make nutrients. During the long-term symbiotic process, ancient cyanobacteria formed chloroplasts, from which plants also emerged.
-
Anonymous users2024-02-03What are the unique characteristics of mitochondria and chloroplasts.
-
Anonymous users2024-02-02Both chloroplasts and mitochondria are elliptical in the pattern diagram, but there is a lamellar stacking structure in chloroplasts, and mitochondria are inwardly concave in the inner membrane to form a crest;
Chloroplasts are mainly synthetic organic matter, sites of photosynthesis;
Mitochondria are the main sites for the decomposition of organic matter and respiration.
-
Anonymous users2024-02-01There are very clear ** and explanations in high school biology textbooks, but I can't remember them now.
-
Anonymous users2024-01-31Chloroplasts are found in the cells of the green part of the plant, mainly in the mesophyll cells, and are composed of two membranes, a sac-like structure and a matrix, and the membrane of the cyst-like structure contains photosynthetic pigments and is an organelle that carries out photosynthesis.
Mitochondria are found in animal and plant cells and are composed of two membranes (the inner membrane folds inward to form a crest) and a matrix, and are the main sites for respiration.
-
Anonymous users2024-01-30It's a bacterium parasitic in the cell, and then the cell found out that this little guy is pretty good, so he added his DNA to his own.
-
Anonymous users2024-01-29Chloroplasts are also called nutrient manufacturing workshops or energy conversion stations; Mitochondria are also called power plants in cells.
Chloroplasts are semi-autonomously inherited organelles! The DNA in chloroplasts can control the synthesis of small parts of proteins that they need; Most of the rest of the proteins are synthesized by nuclear DNA, which is then transported into chloroplasts!
Explicit and implicit are relative.
For example, the expression gene of double eyelids is A, and the performance gene of single eyelids is A, so there are three types of eyelid gene types: AA, AA, and AA. >>>More
I have one of the most effective methods, which is very simple and feasible, to do sit-ups. But pay attention. It's not the traditional one, the general kind is to sit up completely after lying down, I can't sit up completely, sit halfway, the body is only a little angle, so that you can better exercise the abdominal muscles and ligaments, in order to lose more effectively, this is my more coach taught me, I also have a fat belly, just like this, it took less than a month to see the effect Very satisfying, especially effective for people who are not fat themselves Their answers are all searched on ** is not practical at all. >>>More
Hello: As far as you are concerned, I think you can try to do hula hoops, sit-ups, and chest expansion every day.
Some clothes will smell bad after washing and drying, so I will tell you a few ways to get rid of the unpleasant smell of clothes. Rinse clean and thoroughly, cool in the sun, it is best not to dry in the shade, and the cleaned clothes are not easy to dry, and there is often an unpleasant musty smell. You can add two spoonfuls of white vinegar and half a bag of milk to the clean water in the laundry tub, soak the clothes in this specially blended laundry water for 10 minutes, let the vinegar and milk absorb the musty smell on the clothes, and then rinse, wash, rub, rub, knead, and finally wash with clean water, and the musty smell will be gone. >>>More