question_answer 38)

Kitchen of the cell is (a) mitochondria                                                              (b) endoplasmic reticulum (c) chloroplast                                                                   (d) Golgi apparatus

Answer:

  (c) Chloroplasts are present in green algae and higher plants. They have a green pigment called chlorophyll and they are involved in the photosynthesis of food. Therefore they are also known as the 'kitchens of the cells'. Each chloroplast is bounded by two unit membranes like the mitochondria. It shows two distinct regions (i) Grana are the main functional units of chloroplast. They are stacks of membrane bounded, flattened discoid sacs (called thylakoids) containing the molecules of chlorophyll. (ii) Strorna is the homogeneous matrix in which grana are embedded, it contains a large variety of photosynthetic enzymes, starch grains DNA and ribosomes.