Chloroplasts and mitochondria require protein import because Select one: O a. these organelles have a genome O b. these organelles don't have a genome O c. these organelles have ribosomes, but can't make proteins O d. these organelles don't have ribosome's O e. most of the proteins required by these organelles are encoded by genes in the nucleus

Chloroplasts and mitochondria require protein import because Select one: O a. these organelles have a genome O b. these organelles don't have a genome O c. these organelles have ribosomes, but can't make proteins O d. these organelles don't have ribosome's O e. most of the proteins required by these organelles are encoded by genes in the nucleus

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter10: Cell Division And Mitosis

Section: Chapter Questions

Problem 2ITD

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9A. Matching cell structures their functionsiutocues) Answer Structures Function Centrioles 1. Composed of proteins and rRNAs Cytosol 2. Region in prokaryotes contains a chromosome Golgi complex 3. ring of nine outer microtubule doublets (9+2 axoneme) Plasma membrane 4. Support the cell and protect against plasmolysis Ribosome 5. Composed of glycoprotein(s) and involved in transferring material into or out of the cell Transporters 6. contain hydrolytic enzymes and involved in autophagy Receptor 7. Composed of microtubules and sweep mucus out of respiratory tract Peroxisome 8. Controls which material can get in or out of the cell Nucleoid 9. Contains chromosomes and has nuclear envelope Cilia 10. Maintain membrane fluidity 11. contains necessary enzymes for that modify, sort, and package of proteins or lipids for extracellular or intracellular use 12. Fluids baths between organelles 13. Is a ligand-binding site and can receive specific signals from out of the cell 14. Contains catalase…
Ot DNA unge Hu p Pasma memban MU t.m www.w 400 Cell Component (0) Rbosome dolg C 10m (h) Re (0) (1) (k) Food SKLER (1) 100 m Name Locations Function: Nukus Name: Location: Function 1pm Name: Lysosome Location: Function: Animal 10m Name Nucleus Location: Function: Details Pantall Name: Clia and Ragella (some eukaryotic cells) Location: Function 100 μm Name Vacuole to food vecuole is shown Location: Function: Letton 1mm Lauf 10 mm Presentin Visible Par Animal g cells Gips
of my celle chose are wels smaller than normal. According to Model 1, what part(e) of the cell cycle is (ere) ou likely being affected? Some cancerus me 7. In Model 1, if the length of the arrow represents time, then for those cancerous cells, what hap pens to the time that is necessary for the cell cycle? What implication might this have for doctors who are treating cancer patients? Why? Living things must grow and develop. At times they suffer injuries or damage, or cells simply wear out. New cells must be formed for the organism to survive. What process must occur to make a new, properly- functioning cell? Model 1 - Mitosis as Part of the Cell Cycle Prophase Metaphase Anaphase Mitosis How do living things grow and repair themselves! Replicated chromosome (2 sister chromatids) 0000 * Centriole Spindle fibers Nuclear membrane Telophase 1. Refer to Model 1. List the four phases in the mitosis process. 2. Where is mitosis in the cell cycle? Before 3. What three phases of the cell cycle…
b) The dingram ahows some other cells. Size of image E magnitica tion s mm/e 35 mm. asmm 100OX. i) Give three features of theses cells which show that they were part of a plant. ii) Make a drawing of cell X. Your drawing must be four times larger than cells X in the diagram. 2. Which of the following is not part of an animal cell? Nucleus Cell membrane Cytoplasm Cellulose cell wall 3. One difference between green plants and animals is that green plants have Chloroplasts Cytoplasm Nucleus Cell membrane
The sarcoplasmic reticulum stores and releases ________. a. ACh b. Calcium ions c. ATP d. Phosphate ions
Biologists have long been interested in the effects of radiation on cells. In one experiment, researchers examined the effect of radium on mitosis of chick embryo cells growing in culture. A population of experimental cells was examined under the microscope for the number of cells in telophase (as a measure of mitosis occurring) before, during, and after exposure to radium. The results are shown in the Figure. What is the effect of radium exposure on mitosis? Source: R. G. Canti and M. Donaldson. 1926. The effect of radium on mitosis in vitro. Proceedings of the Royal Society of London, Series B, Containing Papers of a Biological Character 100:413419.
Infoldings of the plasma membrane into the cytoplasm of some ancestral cells may have evolved into the _______. a. nuclear envelope b. ER membranes c. primary cell wall d. both a and b
Antibiotic Effects on Mitochondria Tetracyclines are antibiotics that inactivate bacterial ribosomes. Knowing that mitochondria evolved from bacteria, researchers suspected tetracyclines might affect mitochondria by harming their ribosomes. FIGURE 19. 11 shows the effects of an experiment in which mice were given either tetracycline or a control antibiotic that affects cell wall production. After 10 days of treatment, the function of mitochondria in the mice was assessed. FIGURE 19.11 Effects of tetracycline on mitochondria. Mice received low-dose tetracycline, high-dose tetracycline, or a control antibiotic that targets bacterial cell walls. Mitochondrial function was assessed by looking at oxygen consumption rate and ATP content in homogenized mouse livers. Bar graphs show means with standard error. An indicates a statistically significant difference between the experimental and the control treatments. How did the two drugs differ in their effect on oxygen consumption by mitochondria?
The spindle attaches to chromosomes at the _______. a. centriole b. contractile ring c. centromere d. centrosome
The spindle attaches to chromosomes at the _______. a. centriole b. contractile ring c. centromere d. centrosome
The main function of the endomembrane system is: a. building and modifying proteins and lipids b. isolating DNA from toxic substances c. secreting extracellular matrix onto the cell surface d. producing ATP by aerobic respiration
The primary function of Asters in mitosis is Select one: O a. The production of microfilaments spindles to separate the two sister chromatids O b. The formation of microfilaments needed to hold chromosomes O C. The formation of microtubule spindles to separate the daughter chromosomes O d. The dissociation of the nuclear envelop O e. Formation of a cleavage furrow