1 / 14

Plastids

Plastids. Leukoplasts. Colorless plastid in the cytoplasm of plant cells that makes and stores starch. . Amyloplasts. Colorless plastid that forms starch granules and occurs in cells of plant storage tissue. Chromoplasts. An organelle containing any plant pigment other than chlorophyll.

leora
Télécharger la présentation

Plastids

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Plastids

  2. Leukoplasts • Colorless plastid in the cytoplasm of plant cells that makes and stores starch.

  3. Amyloplasts • Colorless plastid that forms starch granules and occurs in cells of plant storage tissue

  4. Chromoplasts • An organelle containing any plant pigment other than chlorophyll. • The pigments may be yellow, orange, or red. • Usually most numerous in cells of flowers

  5. Chloroplasts Structure • Enclosed in a double membrane • Ellipsoidal shape

  6. Grana • Stacks of thylakoids, connected with a system of tubes • Function in the light of photosynthesis • Chloroplast can have from 10 to 100 grana

  7. Thylakoid membrane • Contain chloroplast and other pigments arranged in antenna arrays to capture light reactions of photosynthesis. • Arranged into stacked and unstacked regions • This is called grana and stromathylakoids • This is where photosynthesis is carried out

  8. Stroma • Fluid of the chloroplast surrounding the thykaloid membrane • Colorless hydrophobic matrix, contains DNA, ribosomes and some temporary products of photosynthesis • Complex mix of enzymes and water

  9. Functions • Only in plant cells • Use photosynthesis to make ATP which is energy for the cell • Chlorophyll is responsible for production of food

  10. Other Notes • The function of chloroplasts damaged by linolenic acid in Spinach • Somewhat similar to the mitochondria • Structure highly complex, but the functions of each of these membranes aren’t that complex

  11. What is the plastid that has pigments? Chloroplasts Leukoplasts Chromoplasts

  12. Correct

  13. Wrong

  14. Where is photosynthesis carried out? • GranaStromaThylakoid Membrane

More Related