Each thylakoid is a single, closed compartment. The waxy covering of the leaf: _____ 6. Science - "Cells" Unit test Answers. 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. A chloroplast contains a green pigment called chlorophyll, which absorbs light energy for photosynthesis.Hence, the name chloroplast indicates that these structures … spongy mesophyll and palisade mesophyll of leaves. In the palisade layer, chloroplasts are lined in columns just below the epidermal cells, to facilitate the capture of light. The waxy covering of the leaf. The inner membrane layers fuse along the edges to form thylakoids. 2 Answers. Outer layer of the vein: _____ 8. Both layers of the mesophyll contain many chloroplasts. answer choices . … _____ 4. xylem and phloem. The outermost layer of cells: _____ 5. Notice that the chloroplast has two membranes. Which two layers of the plant contain chloroplasts? These cells function to open and close stomata. Biology. Plastids assist in storing and harvesting needed substances for energy production. No, viruses are not alive because they rely on a host organism to be able to reproduce. Chloroplasts are roughly 1–2 μm (1 μm = 0.001 mm) thick and 5–7 μm in diameter. What two layers of the plant contain chloroplasts? Outer layer of the vein: _____ 8. Relevance. 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. Palisade layer and Spongy layer. 4) The . The inner membrane is folded into many layers. What lies underneath the cuticle: _____ 5. A chloroplast is a type of plant cell organelle known as a plastid. 0 0. ahmed. 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. In the (a) leaf drawing, the central mesophyll is sandwiched between an upper and lower epidermis. _____ 4. _____ 7. 3) What two layers of the plant contain chloroplasts? Column like cells that lie just under the epidermis. 1 decade ago. Thylakoids are disk shaped structures that contain photosynthetic pigments. These cells function to open and close stomata. The cortex of stems often contains chloroplasts as well. Column shaped cells that lie just under the epidermis. For my connexus friends, Here is an (almost) entire sheet for the Cells unit test. 1 decade ago. What two layers of the plant contain chloroplasts? They are double-membrane organelle with the presence of outer, inner and intermembrane space. Tags: Question 19 . palisade and spongy mesophyll. ecolink. Lv 7. Chloroplast in a plant cell is a membrane-bound cell organelle, contain chlorophyll pigments that are absent in the animal cell. What two layers of the plant contain chloroplasts? answer choices . upper and lower epidermis. Which number is pointing to the vein or vascular bundle of the leaf? Q. What two layers of the plant contain chloroplasts? Photosynthesis occurs in eukaryotic cell structures called chloroplasts. 30 seconds . : _____ 6. In aquatic plants, the intercellular spaces in the spongy parenchyma help the leaf float. The size of the chloroplast usually varies between 4-6 µm in diameter and 1-3 µm in thickness. It is oval or biconvex, found within the mesophyll of the plant cell. cuticle and upper epidermis. 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. _____ 7. 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