ESDAY, January 7 2018-IN CLASS (d) nuclear envelope Which of the following organ

Question

ESDAY, January 7 2018-IN CLASS (d) nuclear envelope Which of the following organelles has both an outer and an inner membrane? (b) mitochondrion (c) lysosome (d) peroxisome 14 Mitochondria contain their own genome, are able to duplicate, and actually divide ona different time line from the rest of the cell. Nevertheless, mitochondria cannot function for long when isolated from the cell because they are (a) viuses. (b) parasites (c) endosymbionts (d) anaerobes. 15 Chloroplasts are found only in eukaryotic cells that carry out photosynthesis: plants and algae. Plants and algae appear green as a result of the presence of chlorophyll. Where is chlorophyll located in the chloroplast? (a) in the first, outer membrane (b) in the space between the first and second membranes (c) in the second, inner membrane (d) in the third, innermost membrane Which of the following choices best describes the role of the lysosome? (a) (b) (c) (d) 16 transport of material to the Golgi clean-up, recycling, and disposal of macromolecules sorting of transport vesicles the storage of excess macromolecules The cell constantly exchanges materials by bringing nutrients in from the external environment and shuttling unwanted by-products back out. Which term describes the process by which external materials are captured inside vesicles and brought into the cell? 17 (a) degradation (b) exocytosis (c) phagocytosis (d) endocytosis Eukaryotic cells are able to trigger the release of material from secretory vesicles to the extracellular space using a process called exocytosis. An example of materials commonly released this way is (a) hormones. (b) nucleic acids. (c) sugars. (d) cytosolic proteins. 18 are fairly small organelles that provide a safe place within the cell to carry out certain biochemical reactions that generate harmful, highly reactive oxygen species. These chemicals are both generated and broken down in the same location

Explanation / Answer

13) option B: Mitochondrion

14) option C: endosymbionts

16)option B: clean-up, recycling, and disposal of macromolecules

17) option D: Endocytosis

18) option A: Hormones

19) Peroxisomes

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