(iv) Tubectomy is conducted in females. 2. (False. These are plants which have special adaptations to survive in drying, environmental conditions where many plants would become desiccated and die. TRUE or FALSE? (ii) Give the name of the surgical method represented in the diagram. True or False: Leaves of a tropical rain forest plant would have fewer stomata per square centimeter of surface than leaves of a cold climate plant. They are adapted for photosynthesis by having a large surface area, and contain openings, called stomata to allow carbon dioxide into the leaf and oxygen out. Scale Leaves. Practice to excel and get familiar with the paper pattern and the type of questions. Excessive transpiration can prove to be harmful for the survival of plants. (iv) This type of cell division occurs in all somatic cells. 2. What are the age restrictions for marriage of boys and girls In India? These include thick cuticles, thick cell walls, sunken stomata, and hairs or pubescence. Large amount of water gets into the plant. When water evaporates from the leaves, resulting in more water being drawn up from the roots, it is called transpiration. (iv) Name the audio receptor cells which pick up vibrations. (iv) Mention two structural features of A which help in the function mentioned in (iii) above. Activities of the Red Cross:(a) To supply blood to the needy victims of war and calamity. ... size, shapes, and types vary greatly; epidermis has a cuticle to prevent transpiration. The plants survive well because of a combination of the following features: • thick cuticle to reduce evaporation • reduced number of stomata ... Is this statement true or false? Figure 5.21: Desert plants like cactus have thick cuticles to avoid water loss. Study the same and answer the questions which follow: (i) Name the parts marked A. Leaves are adapted in several ways to help them perform their functions. The diagram shows a section of the human brain. Other leaves may have small hairs (trichomes) on the leaf surface. Reason for the correct answer: Pine needles have several adaptations in order to prevent water loss. (True) 6. It does this by diffusing through small pores called, tissue of the leaf. Sample exam questions - plant structures and their functions - Edexcel, Home Economics: Food and Nutrition (CCEA). (iv) Sense cells of organ of Corti(v) Endolymph, Mention three adaptations found in plants to reduce transpiration. (ii) Mention any two functions of the part labelled 2. These specialised tissues move substances in and around the plant. Desert plants have specially adapted structures, such as thick cuticles, reduced leaf areas, sunken stomata and hairs to reduce transpiration and conserve water. (True) 3. The fusion of male sperm and female egg takes place inside thefallopian tubes. The pH of the guard cells increases during day time. 1. Transpiration is helpful in the transport of matter Get the answers you need, now! B, C, D and B. (iv) Where does this type of cell division usually occur? https://www.zigya.com/previous-year-papers/icse/10/Biology/2009/ICSE2009004, ICSE Class 10 Biology Solved Question Paper 2009, Class 11 NCERT Political Science Solutions, Class 11 NCERT Business Studies Solutions, Class 12 NCERT Political Science Solutions, Class 12 NCERT Business Studies Solutions, https://www.zigya.com/share/SUJJRU4xMDEwOTczMw==. Transpiration in the leaf Increases the sheen on leaves to make them more reflective. Cuticular transpiration: Cuticle is an impermeable covering present on the leaves and stem. 1. (v) In females, the fallopian tubes are ligated. Water loss from the leaves or stem of a plant. This reduces the rate of transpiration. Ask your question. They are arranged closely together so that a lot of light energy can be absorbed. It causes around 20% of transpiration in plants. (v) Two daughter cells are formed from this type of cell division. When water evaporates from the leaves, resulting in more water being drawn up from the roots, it is called transpiration. This preview shows page 32 - 38 out of 38 pages.. Reducing Transpiration • Small, thick leaves • Thick cuticle • Stomata are recessed • Lose their leaves • C 4 or CAM plants Transpiration • Small, thick leaves • Thick cuticle • Stomata are recessed • Lose their leaves • C 4 or CAM plants Plants have two different types of 'transport' tissue, xylem and phloem. Narrow leaves: The leaves become narrower so as to reduce the surface area. (i) A - Semicircular canalB - UtriculusC- SacculusD- Cochlea(ii) Optic nerve(iii)1. . Join now. Where water is plentiful and temperatures are moderate, plants have wide, thin leaves with lots of surface area for maximum photosynthesis. Plants have two different types of 'transport' tissue. Study the same and then answer the questions which follow: (i) Name the parts labelled A. Some of this water evaporates, and the water vapour can then escape from inside the leaf. (vi) Transpiration: It is the loss of water as water vapour from the aerial parts of the plant. Answer the questions which follow: (i) Name the parts labelled A. These specialised tissues move substances in and around the plant. (ii) What is the biological term for the above structure? More transpiration occurs from the under surface of a leaf.) © of water at the surfaces of the spongy mesophyll cells in leaves, followed by loss of water vapour through the stomata. I’ll list the advantages of this process to plants below. Several structural features lessen the rate of transpiration. The leaves are covered by a thick cuticle: In evergreen plants, such as banyan, theleaves remain covered by a thick waxy cuticle. Many cacti conduct photosynthesis in succulent stems, rather than leaves, so the surface area of the shoot is very low. Hence, ... Evergreen trees develop a thick waxy cuticle on the epidermis of leaf. (vi) The dividing cell shown is a plant cell because the centrosome is absent and a cell wall is present. The equation for photosynthesis is: \[\text{carbon dioxide and water} \rightarrow \text{glucose and oxygen}\]. Water vapour also diffuses out of the stomata. Leaves enable photosynthesis to occur. (iv) Guard cells have thick inner walls and thin outer walls. 2. B and C.(iii)Name the three protective membranes covering the brain. To reduce water loss the leaf is coated in a waxy cuticle to stop the water vapour escaping through the epidermis. B and C.(ii) Give the main function of each of the parts A. A few plants have their leaves modified into needle-like structures known as spines. (v) The stomata are found on the upper and lower epidermis of the leaf. (i) Umbilical cord(ii) Part 2 is Placenta.Functions of the placenta are:1. Semicircular canals are responsible for dynamic equilibrium.3. Cuticle thickness varies, depending on … # The stomata are sunken to reduce the rate of transpiration. Sacculus and utriculus are responsible for static equilibrium.2. Palisade cells are column shaped and packed with many. (ii) Name the parts labelled A, B, C and D. (iii) What is the unique feature observed in this stage? Distribution of water is throughout the plant. Join now. (iii) Name the part labelled above which is responsible for. Explaln the term transpiration. Plants with sunken stomata have generally been found capable of significant reduction in transpiration. (i) A - CerebrumB- CerebellumC - Medulla oblongata(ii) Cerebrum controls memory, will power, judgment, intelligence andvoluntary functions.Cerebellum  maintains body balance and coordination in muscular activities.Medulla oblongata controls the activities of the internal organs such as heart beat, breathing, swallowing etc. Sign in, choose your GCSE subjects and see content that's tailored for you. 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