carn In evolutionary terms, which of the 2 mitochondrial membranes were derived
ID: 140820 • Letter: C
Question
carn In evolutionary terms, which of the 2 mitochondrial membranes were derived from the plasma membrane of the ancestral eukaryotie cell Why are mitochondria often called the "powerbouse" of the cell Why are mitochondria often said to be the site of "cellular respiration Besides plants, what other type of organism contains chl What are the 3 membranes of a chloroplast What is believed to be the origin of chloroplasts Do plant cells contain both mitochondria and chloroplasts ame 4 other membrane bound organelles & their function, typical of most Eukaryotic ce Why is it advantageous for eukaryotic cells to evolve elaborate intemal membrane systems that allow them to import substances from the outside environment?2? What is the largest single compartment in a cell and what takes place here? Are there any organelles present in this compartment? In which compartment is the cytoskeleton located in? What is the role of the cytoskeleton? What are the 3 major components of the cytoskelton? UNITY AND DIVERSITY OF CELLS In what ways are cells the same? What are some of the important principles of the "Cell Theory"?Explanation / Answer
1) outer mitochondrial membrane and inner mitochondrial membrane
2) Mitochondria is called powerhouse of the cell because it is the site where aerobic respiration occurs. With the help of that energy riched ATP are formed inside the mitochondria. Whenever cells are required energy these ATP are utilised to produce energy.
3) Inside mitochondria, with the help of Oxygen, substrates undergo catabolism to form ATP. Hence it is called the site for cellular respiration.
4) Beside plants chloroplast are present in following organism
- Photosynthetic protists such as Diatoms, desmids, euglena
5) three membranes of chloroplast are
-outer membrane
-inner membrane
-interlaminar membrane also called frets membrane
6) Chloroplast are believed to be originated from Bacteria according to Endosymbiotic theory
7) Yes plants cells can contain both mitochondria and chloroplast
Mitochondria will provide ATP for carrying various metabolic functions
-chloroplast will be responsible for synthesising the food
8) Membrane bound organelles in eukaryotes
- Endoplasmic reticulum : responsible for synthesis and storage of protein and lipids
- Golgi complex: responsible for concentration packing and secretion of proteins and lipid products
-Lysosome : they contain hydrolytic enzymes which is responsible for destruction of organic molecules
-Nucleus : which encloses genetic material i.e chromosome or DNA
9) internal membrane systems help to store and transport various products separately. Also they provide partitions that separate different components. Thus increasing the efficiency of cellular functions.
10) The largest single compartment in the cell is of Nucleus. DNA are enclosed in it, Which is responsible for directing and regulating various cellular functions
11) One organelle is present in Nucleus which is called nucleolus
-Nucleolus are dense without membrane present inside the nucleus which is the site for formation of Ribosomes
12) Cytoskeleton is located inside the cytoplasm which is connected to nuclear membrane on one side and cell membrane on other side
13) Cytoskeleton provides structural support and integrity to the cell. Also it helps in intracellular transport of various molecules
14) Three major components of Cytoskeletons are
-microtubules
-microfilaments
-intermediate filaments
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