File Name: a level chemistry revision questions and answers .zip
Mirroring the way many universities split their content, this specification gives students a broad range of experience in the three areas of physical, organic and inorganic chemistry.
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Chapter 2: Multiple choice questions. Answer the following questions, circle the best answer. Other sections include matter, elements, the periodic table, reactions, and biochemistry.
They contain all the necessary exam knowledge in a short, easy to memorize form. They break topics down to 1 or 2 pages of what you need to know. Each page covers the key facts, such as definitions and equations, without the distraction of unnecessary information. Get ready for assessments and mock exams with this great revision tool! Your order will be dispatched same or next day with Royal Mail 1st class average shipping time: 2 — 3 working days!
As mentioned earlier, all the chapters present in the Class 11 Chemistry syllabus act as the base of the branches that are in the next higher standard. If you have thoroughly studied Chemistry till the 10th standard, you can observe a notable difference in the chapters. You will read the same thing but can expect to find new concepts and scientific facts. The 11th Chemistry essential questions can help you to seek the answers in the right way. Some important chapters in Class 11 Chemistry are mentioned here in detail.
Attraction of water molecules to the Walls adhesion from the stem water enters the xylem of leaves water moves in the xylem vessels of the stem in a continuous uninterrupted water column up to the tree leaves Leaves once in the leaves water moves into the mesophyll cells by osmosis as water vaporizes from the spongy mesophyll cells their sap becomes more concentrated than the adjacent cells as the result water flows into the cell from other surrounding cells which in turn takes in water from xylem vessels within the leaf veins this creates a pull suction force called transpiration pull that pulls a stream of water from xylem vessels in the stem and roots. The transpiration pull maintains a continuous column of water from the roots to the leaves. Absence of cuticle also increase rate of transpiration ii Explain the environmental factors that affect rate of transpiration in plants high temperature increases rate of transpiration and low temperature reduces the rate humidity when high increases rate and when low reduces the rate transpiration rate is higher in moving air wind than in still air high light intensity increases internal temperature hence higher rate of evaporation leading to higher rate of transpiration availability of water in the soil leads to more absorption hence more loss to the atmosphere atmospheric pressure when high leads to more evaporation and when low leads to low rate evaporation of water iii State the structural differences between xylem vessels and sieve tubes sieve tubes have cross wall while xylem vessels have none xylem vessels are lignified while sieve tubes are not Sieve tubes have cytoplasm elements while xylem vessels have none. Water vapour accumulates in the depression of stomata lowering the water vapour concentration gradient leading to lower rate of evaporation rolling of leaves v State the factors that cause increase in the rate of transpiration from leaves increased light intensity low relative humidity temperature vi Explain how drooping of leaves on a hot sunny day is advantageous to a plant reduces surface area exposed to sun reducing cuticular transpiration c Explain how aquatic and terrestrial plants are adapted to deal with problems of transpiration a. Mesophytes they grow in soils with enough water water loss is perfectly balanced by absorption of more from the soil no special adaptations b.
My unofficial support for this CIE chemistry syllabus-specifications. Each topic or unit is linked to potentially useful sections e. The notes-quizzes are not just for your particular syllabus, but are designed to cover, eventually, any Chemistry in UK based advanced level pre-university chemistry specification so you need to pick out the bits which are useful for your syllabus. Chemical Calculations index - 1.
Inorganic ions. Many proteins are … Cells Revision Notes: All cells arise from other cells. Cell recognition and the immune system. Hydrolysis is the opposite of condensation and is the breaking of a peptide bond using a molecule … Factors Affecting the Rate of Reaction 1.
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