A chloroplast is a type of plant cell organelle known as a plastid. Photosynthesis occurs in eukaryotic cell structures called chloroplasts. 3) What two layers of the plant contain chloroplasts? Science - "Cells" Unit test Answers. cuticle and upper epidermis. palisade and spongy mesophyll. Chloroplasts are roughly 1–2 μm (1 μm = 0.001 mm) thick and 5–7 μm in diameter. For my connexus friends, Here is an (almost) entire sheet for the Cells unit test. It is oval or biconvex, found within the mesophyll of the plant cell. 1. Chloroplast in a plant cell is a membrane-bound cell organelle, contain chlorophyll pigments that are absent in the animal cell. These cells function to open and close stomata. The cortex of stems often contains chloroplasts as well. _____ 7. Notice that the chloroplast has two membranes. Palisade layer and Spongy layer. What two layers of the plant contain chloroplasts? 0 0. ahmed. In the palisade layer, chloroplasts are lined in columns just below the epidermal cells, to facilitate the capture of light. What two layers of the plant contain chloroplasts? They are double-membrane organelle with the presence of outer, inner and intermembrane space. Which two layers of the plant contain chloroplasts? No, viruses are not alive because they rely on a host organism to be able to reproduce. Column like cells that lie just under the epidermis. The outermost layer of cells: _____ 5. 1 decade ago. 1 decade ago. 1 Answer krishna kishore G. Jul 29, 2016 In a leaf in between the upper epidermis and lower epidermis a large number of parenchyma are arranged which can be viewed in the Transverse Section of a leaf. answer choices . In aquatic plants, the intercellular spaces in the spongy parenchyma help the leaf float. _____ 4. What two layers of the plant contain chloroplasts? 2 Answers. Favourite answer. ecolink. The inner membrane is folded into many layers. A chloroplast contains a green pigment called chlorophyll, which absorbs light energy for photosynthesis.Hence, the name chloroplast indicates that these structures … Thylakoids are disk shaped structures that contain photosynthetic pigments. … Lv 7. What two layers of the plant contain chloroplasts? The waxy covering of the leaf. In the (a) leaf drawing, the central mesophyll is sandwiched between an upper and lower epidermis. answer choices . The study of chloroplast was first carried by a scientist named Hugo Von Mohl in the year 1837.After his study, it was found that the chloroplasts were the type of plastids and hence it was named “Chloroplastids” by a scientist named Schimper in the year 1883. Tags: Question 19 . Outer layer of the vein: _____ 8. Which number is pointing to the vein or vascular bundle of the leaf? They are enclosed in a chloroplast envelope, which consists of a double membrane with outer and inner layers, between which is a gap called the intermembrane space. Plastids assist in storing and harvesting needed substances for energy production. Answer Save. Q. Guard cells are the only epidermal cells to contain chloroplasts. Column shaped cells that lie just under the epidermis. spongy mesophyll and palisade mesophyll of leaves. Each thylakoid is a single, closed compartment. SURVEY . The size of the chloroplast usually varies between 4-6 µm in diameter and 1-3 µm in thickness. The mesophyll can be further broken down into two layers, the palisade layer and the spongy layer, both of which are packed with chloroplasts, the factories of photosynthesis. 30 seconds . xylem and phloem. The waxy covering of the leaf: _____ 6. : _____ 6. _____ 7. What lies underneath the cuticle: _____ 5. Relevance. Outer layer of the vein: _____ 8. 4) The . upper and lower epidermis. Both layers of the mesophyll contain many chloroplasts. Biology. _____ 4. These cells function to open and close stomata. 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