Part A Which of the following is a common trait of chloroplasts and mitochondria? Ob oth are found in plant and animal cells Ob oth are surrounded by a single membrane Ob oth contain their own DNA Ob oth reproduce by meiosis Op roteins for both are synthesized on ribosomes in the rough ER
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Step 1: Chloroplasts and mitochondria are both organelles that have their own DNA. Show more…
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Which of the following are common traits of chloroplasts and mitochondria? a. Both are surrounded by a single membrane. b. Both reproduce by meiosis. c. Both have their own DNA. d. Both are found in plant and animal cells. e. Proteins for both are synthesized on ribosomes in the rough ER.
Bryan V.
3. Directions: Write a P if the statement refers to Prokaryotes and an E if the statement refers to Eukaryotes, if the statement refers to both Prokaryotes and Eukaryotes write a B on the line. 1. This type of cell does not have membrane bound organelles. 2. This type of cell contains DNA. 3. This type of cell contains organelles. 4. A bacterium is an example of this type of cell. 5. This type of cell contains a nucleus. Cell Structures & Functions All cells are enclosed by a cell membrane (plasma membrane). Within the membrane is the nucleus and the cytoplasm. Within the cytoplasm are organized structures that perform specific functions. These structures are called organelles. Please Note: The letters next to the structure of the cell indicates where the structure is found. A = animal cells P = plant cells A, P = both plant and animal (A, P) Cell Membrane - surrounds the cell. It plays an active role in determining which substances enter and exit the cell. Some substances can pass freely through the cell membrane and others cannot, the membrane is said to be selectively permeable, or semipermeable. The cell membrane is composed primarily of lipids (phospholipids), proteins, and carbohydrates. (A, P) Nucleus - control center for all cell functions. Within the nucleus are chromosomes and at least one nucleolus. The nucleolus is a site of rRNA synthesis, and is responsible for the production of ribosomes. (A, P) Cytoplasm - the material in the cell outside the nucleus. It consists mainly of water. Within the cytoplasm are the various organelles of the cell. The cytoplasm provides the environment in which the organelles carry on the life processes of the cell. (A, P) Mitochondria - are found in the cytoplasm. Most stages of cellular respiration occur in the mitochondria. The energy released during respiration is stored in the form of high-energy chemical bonds in molecules of ATP. (P) Chloroplasts (also called plastids) - contain green pigment called chlorophyll, which carries on the process of photosynthesis. Mitochondria & Chloroplast - Developed from prokaryotic cells? WHAT?!?! Check out this really good explanation...relating to endosymbiotic theory http://www.youtube.com/watch?v=fAjev01mDZM
Adi S.
Question text Which of the following is TRUE regarding Mitochondria? Select one: a. They are found in both plants and animals but not archaea or bacteria. b. They are found in animals but not plants. c. Mitochondria have DNA in their matrix but it isn't used for gene expression. d. All cells have the same number of mitochondria. e. Mitochondria have one single membrane whereas chloroplasts have 2 distinct membranes.
Madhur L.
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