Coursework bank stomata

Coursework bank stomata

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Definition of 'stomata'

Most candidates correctly identified the process as being diffusion in part a but only better candidates explained this as being due to the rate being proportional to concentration. Tags plants and minerals.

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Coursework bank stomata

C concentrated in a portion of the leaf called the stroma. Most candidates correctly identified the process as being diffusion in part a but only better candidates explained this as coursework bank stomata due to the rate being proportional to concentration.

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1 skillconceptualunderstanding

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Question Bank

Far too many candidates gave the letter notations for the bases even when the question asked for the names.

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Transpiration

Guard cells change shape and cause the stoma to open or close, depending on conditions. Name the process by which nitrate ions are taken up.

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Difference in number of Stomata in different leaves

More roots provide the plant with a larger area for a greater water uptake.

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Unit 3 - Water Loss in Plants

Tags active transport cyanide Diffusion osmosis respiratory inhibitor root solute potential water potential water relations. As a higher demand questions a required two functions of the stomata to be given for one mark.

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Experiment on Transpiration Rate - Title investigation on...

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Plants do which of the following to reduce water loss? Name the process by which nitrate ions are taken up.

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In such situations, gardeners can remove some leaves - fewer leaves mean less transpiration and less water loss. Benefits Do I Qualify?

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Tags active transport cyanide Diffusion osmosis respiratory inhibitor root solute potential water potential water relations.

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This is the end of the preview. You haven't added any questions yet Use the filters to narrow down your search results, then start choosing tags to find appropriate questions.

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You haven't added any questions yet Use the filters to narrow down your search results, then start choosing tags to find appropriate questions. Extended Project Level 3 Promotional Voursework.

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Your search returned results s Bak results 1 to 5 of However, examiners were coursework bank stomata to see that there were in fact some excellent answers in which well-prepared candidates clearly understood the processes involved in the coursework bank stomata cycle and had the communication skills necessary to select relevant points and produce a sequential, linked account.

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Guard cells change shape and cause the stoma to open or coursework bank stomata, depending on conditions. Thin needle-like leaves or thick waxy coatings on fleshy leaves and stems are other adaptations to reduce transpiration in plants which live in desert conditions or places where the ground water is frozen for long periods of time.

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The xylem cells form continuous tubes down to the roots and, as water is lost from the leaves, more coursework bank stomata drawn up from the roots - rather like when you drink through a drinking straw. During transpiration, what leaves the plant through stomata?

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If it is humid, there is less of a concentration gradient so less water is lost.

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D found throughout the leaf tissue. You coursework bank stomata added any questions yet Use the filters to narrow down your search results, then start choosing tags to find appropriate questions.

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Leaves contain spongy and palisade cells. Hardly any recognised one function as controlling or regulating water loss and very few mentioned gaseous exchange.

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Coursework bank stomata obtained the mark for b and c and those who knew the factors regulating transpiration gained marks for d. Sign up to access the rest of the document.

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During transpiration, what leaves the plant through stomata? New Centres Unique Candidate Identifiers.

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All four bases required the correct spelling — phonetic spelling was not acceptable.

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If you're already a subscriber, you can log in here. Most obtained the mark for b and c and those who knew the factors regulating transpiration gained marks for d. Thin needle-like leaves or thick waxy coatings on fleshy leaves and stems are other adaptations to reduce transpiration in plants which live in desert conditions or places where the ground water is frozen for long periods of time.

Home 5 Question Bank. The xylem cells form continuous tubes down to the roots and, as water is lost from the leaves, more is drawn up from the roots - rather like when you drink through a drinking straw. Transpiration is the process by which plants transport water upwards against the pull of gravity and it is made possible by water loss due to evaporation.

Keep the stomata open. Leaves contain spongy and palisade cells. Most of it is just common sense - anything that changes the speed of water loss to evaporation will affect transpiration - changes in temperature, humidity and the speed of the wind blowing over the leaves.

Tags lifestyle and health. Conceptual Understanding 8 In most green plants, chloroplasts are A concentrated in a zone of leaf tissue called the mesophyll. Which of the following are specialised cells found on either side of a stoma? Factual Recall 11 In the chloroplast, sugars are made in a compartment that is filled with a thick fluid called the A stomata. Part d was well answered, but despite giving candidates a formula and units, it was still disappointing to see small numbers of candidates failing to use units or show working in their mathematical calculations.

Hardly any recognised one function as controlling or regulating water loss and very few mentioned gaseous exchange. This website uses cookies to create the best possible browsing experience. Many plants close their stomata during the day when it is hot. It sounds like respiration but has nothing to do with the release of energy in cells. During transpiration, what leaves the plant through stomata?

Most candidates correctly identified the process as being diffusion in part a but only better candidates explained this as being due to the rate being proportional to concentration. C concentrated in a portion of the leaf called the stroma. E found throughout the plant. They allow carbon dioxide into leaves and let oxygen and water out. The 3rd mark was awarded for stating that enzymes are proteins.

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