Biology

Biology, 04.08.2019 00:20, vhuyrtyy

The theory suggests that mitochondria were once independent cells that were captured by another cell

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Biology, 02.07.2019 11:20, lawhd8700

Cant get these 2 5. the theory illustrated by the accompanying figure is used to explain the origin of illustrated figure down below a. cell membranes. b. eukaryotic cells. c. nuclear membranes. d. prokaryotic cells. 7. which of the following best supports the statement that mitochondria are descendants of endosymbiotic bacteria-like cells? (2 points) a. mitochondria fossils are older than the oldest fossilized eukaryote. b. mitochondria can survive indefinitely when removed from a eukaryotic cell. c. mitochondria have their own set of dna molecules. d. mitochondria can produce atp molecules.

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Biology, 05.07.2019 04:00, beverly9662

:1. despite differences in size and shape, all cells have dna and a: a- cell wall b- mitochondria c- cell membrane d- nucleus 2. which of the following is not a part of the cell theory? a- all cells contain a nucleus. b- cells are the basic unit of structure and function in an organism. c- all living things are made of cells. d- new cells are produced from existing cells. 3. when using a light microscope to view a cell she obtained from scraping under her fingernails, mrs. smith notices that the cell lacks a nucleus; therefore, mrs. smith concludes that the cell must be a type of cell. a- animal b- plant c- eukaryotic d- prokaryotic 4. which of the following kinds of cell perform basic functions such as obtaining energy from food? a- plant cells, but not animal cells b- animal cells, but not plant cells c- both plant cells and animal cells d- neither plant cells nor animal cells 5. which cell structures are sometimes found attached to the endoplasmic reticulum? a- chloroplasts b- ribosomes c- nuclei d- mitochondria

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Biology, 09.07.2019 19:30, ReaLily

Which of the following best supports the endosymbiont theory that present-day eukaryotic cells are descendants of a successful symbiotic relationship between a host cell and an engulfed prokaryote? chloroplasts and mitochondria replicate in a similar manner as some prokaryotes. chloroplasts are necessary for photosynthesis reactions in plant and bacteria cells. mitochondria and chloroplasts are able to produce atp molecules to be used by the cell. mitochondria use proteins and nutrients produced in other regions of the eukaryotic cell.

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Biology, 02.08.2019 20:00, stephanierey075

Mitochondria are cellular organelles that act as the power generators of the cell by converting oxygen and nutrients into atp. the number of mitochondria present in a cell depends on the metabolic needs of that cell. based on this information, which of the following types of cells possess a large quantity of mitochondria? a. liver cells b. muscle cells c. lung cells d. nerve cells

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