Concept explainers
(a)
Interpretation: To identify whether the statement “the mitochondrion inner membrane is highly permeable to small molecules” about mitochondrion structural characteristics is true or false.
Concept introduction: In eukaryotic cells, the water-based material which is present between the nucleus and cell membrane of a cell is known as cytoplasm. The various small structures are present in the cytoplasm which perform a particular function of the cell and are known as organelles.
A mitochondrion is an organelle which is responsible for the production of energy which is required for the completion of various functions of the body.
(b)
Interpretation: To identify whether the statement “mitochondria have a sausage-like shape” about mitochondrion structural characteristics is true or false.
Concept introduction: In eukaryotic cells, the water-based material which is present between the nucleus and cell membrane of a cell is known as cytoplasm. The various small structures are present in the cytoplasm which perform a particular function of the cell and are known as organelles.
A mitochondrion is an organelle which is responsible for the production of energy which is required for the completion of various functions of the body.
(c)
Interpretation: To identify whether the statement “cristae are small folds on the inner membrane” about mitochondrion structural characteristics is true or false.
Concept introduction: In eukaryotic cells, the water-based material which is present between the nucleus and cell membrane of a cell is known as cytoplasm. The various small structures are present in the cytoplasm which perform a particular function of the cell and are known as organelles.
A mitochondrion is an organelle which is responsible for the production of energy which is required for the completion of various functions of the body.
(d)
Interpretation: To identify whether the statement “the inner most area of a mitochondrion is called the matrix” about mitochondrion structural characteristics is true or false.
Concept introduction: In eukaryotic cells, the water-based material which is present between the nucleus and cell membrane of a cell is known as cytoplasm. The various small structures are present in the cytoplasm which perform a particular function of the cell and are known as organelles.
A mitochondrion is an organelle which is responsible for the production of energy which is required for the completion of various functions of the body.
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GENERAL,ORGANIC,+BIO.CHEM.-MINDTAP
- It has been estimated that mitochondria occupy 20% of the volume in the human body. For a 70- kg adult, the average number of mitochondria has been estimated to be 1 × 10 (10,000 trillion). Using this information, provide a rough estimate of the average mass of a mitochondrion.arrow_forwardWhich of the following statements is TRUE regarding the nucleo-cytoplasmic interaction? * A. Nuclear genes control metabolic processes occuring in the cytoplasm. B. Molecules in the cytoplasm cannot influence expression of genes in the nucleus. C. Cytoplasmic transplantation experiments have provided evidence for the validity of this concept. D. Molecules can move from the nucleus to the cytoplasm, but not from the cytoplasm into the nucleus.arrow_forwardDefine the following terms: a. acid hydrolase b. mitochondrion c. lysosome d. autophagy e. peroxisomearrow_forward
- Select the correct pairing of a structure and the process it is associated with. A. Schwann cells……..muscle contraction B. ATP synthase…..electron transport chain C. H+ pump……facilitated diffusion D. Mitochondria…..protein synthesisarrow_forwardWhich of the following statements is NOT TRUE about the organization and function of chloroplasts and mitochondria? a. The pH is very low in the matrix of both organelles. b. Both cristae and grana are infoldings of the inner membrane. c. Inner membranes contain the transport proteins and ATP Synthases. d. Both organelles can divide independently of the cell.arrow_forwardIdentify two characteristics that make mitochondria different from other organelles .arrow_forward
- Each of the following conditions involves a disorder in the function of an organelle or other cell structure. In each case, identify the organelle or structure involved and indicate whether it is likely to be underactive or active. Give brief a brief explanation each. a. A man suddenly felt weak and manifested cyanide poisoning symptoms after ingesting undercooked cassava which contains cyan glycosides. b. A young man learns that he is infertile because his sperm are non-motile. A maize plant is unable to survive due to recessive lethal gene causing albinism. d. An infant is placed on a low phenylalanine diet as his newborn screening results revealed that he inherited phenylketonuria. e. A man develops pleiomorphic liposarcoma (a rare type of cancer) and is told that the cause of the problem is a hard mass of cells in his right inner thigh that rapidly increased in size in a C. matter of two months.arrow_forwardUsing the concepts of endo- and exo-cytosis explain the origin of the mitochondria. Include a drawingarrow_forwardDescribe in general terms the structural makeup of a mitochondrion.arrow_forward
- Describe the General structure of a mitochondrion.arrow_forwardWhat can you conclude about the structure of mitochondriaarrow_forwardImagine that you develop a procedure to measure the pH of in the matrix and the intermembrane space of a mitochondrion. What pattern of pH would you see? The pH in the intermembrane space will contain more H+ and have a lower pH compared to the matrix. The pH in the intermembrane space will contain more H+ and have a higher pH compared to the matrix. The pH within the matrix will contain more H+ and have a lower pH compared to the intermembrane space. The pH within the matrix will contain more H+ and have a higher pH compared to the intermembrane space.arrow_forward
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