Explain the structure and function of plastids and mitochondria.
(for grade 9)
Answers
Answer:
PLASTIDS:
The chloroplasts are probably the most-known of the plastids. ... The chloroplast is filled with thylakoids, which is where photosynthesis occurs, and chlorophyll. The basic structure of the chloroplast. Chromoplasts are what the name describes, a place for the pigments to be stored and synthesized in the plant.
They provide colour to fruits and flowers. They helps in storage of proteins, starch and oil. They trap solar energy to manufacture food through the process of photosynthesis.
MITOCHONDIRA:
They are made of two membranes. The outer membrane covers the organelle and contains it like a skin. The inner membrane folds over many times and creates layered structures called cristae.
he most prominent roles of mitochondria are to produce the energy currency of the cell, ATP (i.e., phosphorylation of ADP), through respiration, and to regulate cellular metabolism.
Explanation:
Answer:
Mitochondria have two membranes, an outer membrane and an inner membrane. ... The space between the outer and inner membranes is called the intermembrane space, and the space inside the inner membrane is called the matrix. This diagram shows the structure of a mitochondrion.
Plastid is a double membrane-bound organelle involved in the synthesis and storage of food, commonly found within the cells of photosynthetic plants. ... A plastid containing green pigment (chlorophyll) is called chloroplast whereas a plastid containing pigments apart from green is called a chromoplast.