Multiple Choice 2015-16

Question	Answer	Point
What is photosynthesis?	Photosynthesis is a chemical reaction that requires light energy to react together carbon dioxide and water to produce oxygen and glucose.	PLANNING AIM: How does light affect the height of seedlings over time?
Where does photosynthesis take place?	Photosynthesis takes place in any green part of a plant where chlorophyll is present	Sow seeds
What are the products of photosynthesis?	The products of photosynthesis are glucose (a sugar) and oxygen	Plants making carbohydrates in their leaves by photosynthesis
Where are plants found in the food chain?	Food chains begin with a producer, which is normally a green plant. (FROM 2B)	Food chains begin with a producer, which is normally a green plant. (FROM 2B)
How do plants get their energy?	Green plants get their energy from the sun through photosynthesis. (FROM 2B)	Green plants get their energy from the sun through photosynthesis. (FROM 2B)
What does 'photo' mean?	'Photo' is from the Greek for 'light'.	'Photo' is from the Greek for 'light'.
What does 'synthesis' mean?	'Synthesis' is from the Greek for 'put together or combine'.	'Synthesis' is from the Greek for 'put together or combine'.
What happens to particles in synthesis?	Synthesis is the bonding together of small particles to form bigger particles.	Synthesis is the bonding together of small particles to form bigger particles.
What happens to the particles in decomposition?	Decomposition is the splitting of large particles in smaller particles.	Decomposition is the splitting of large particles in smaller particles.
What types of cells does the most amount of photosynthesis happen?	Most photosynthesis takes place in palisade cells.	Most photosynthesis takes place in palisade cells.
Where in a plant cell does photosynthesis take place?	Palisade cells are adapted for photosynthesis by having lots of chloroplasts. NB: Main thrust of lessons should be looking at cells.	Palisade cells are adapted for photosynthesis by having lots of chloroplasts. NB: Main thrust of lessons should be looking at cells.
What is the word equation for photosynthesis?	The word summary for photosynthesis is: Carbon Dioxide plus Water becomes Glucose plus Oxygen using light energy.	The word summary for photosynthesis is: Carbon Dioxide plus Water becomes Glucose plus Oxygen using light energy.
What are the reactants of photosynthesi	The reactants of photosynthesis are: Carbon Dioxide and Water	The reactants of photosynthesis are: Carbon Dioxide and Water
Where does the plant get carbon dioxide from?	Carbon Dioxide is absorbed from the air.	Carbon Dioxide is absorbed from the air.
Where does water come from for the plant and where does it enter the plant?	Water is absorbed from the ground through the roots.	Water is absorbed from the ground through the roots.
How does carbon dioxide get absorbed into the plant?	Carbon dioxide is absorbed through the leaves.	Carbon dioxide is absorbed through the leaves.
What chemicals are the products of photosynthesis?	The products of photosynthesis are: Glucose and Oxygen	The products of photosynthesis are: Glucose and Oxygen
What happens to the glucose in a plant?	Glucose is used or stored in the plant.	Glucose is used or stored in the plant.
Where does the oxygen made in a plant leave from?	Oxygen is released through the leaves into the air.	Oxygen is released through the leaves into the air.
What is glucose converted into when stored in a plant?	Glucose is converted into starch for storage.	Glucose is converted into starch for storage.
What is the word equation for aerobic respiration?	the reactants in, and products of, photosynthesis, and a word summary for photosynthesis	The word summary for respiration is: Glucose plus Oxygen becomes Carbon Dioxide plus Water releasing energy.
What is the symbol equation for photosynthesis?	The symbol equation for photosynthesis is: CO<SUB>2</SUB> plus H<SUB>2</SUB>O -> C<SUB>6</SUB>H<SUB>12</SUB>O<SUB>6</SUB> With a wavy arrow showing the light energy.	The symbol equation for photosynthesis is: CO<SUB>2</SUB> plus H<SUB>2</SUB>O -> C<SUB>6</SUB>H<SUB>12</SUB>O<SUB>6</SUB> With a wavy arrow showing the light energy.
What happens to atoms in chemical reactions?	Chemical reactions result from the rearrangement of atoms.	Chemical reactions result from the rearrangement of atoms.
What happens to the numbers of each atom in a chemical reaction?	No particles are created or destroyed in a chemical reaction. Therefore the equation needs to be balanced.	DESIRABLE: No particles are created or destroyed in a chemical reaction. Therefore the equation needs to be balanced.
What makes photosynthesis an endothermic reaction?	Photosynthesis is an endothermic chemical reactions because it takes energy to build bigger molecules.	Photosynthesis is an endothermic chemical reactions because it takes energy to build bigger molecules.
What is the symbol equation for respiration?	The symbol equation for respiration is: C<SUB>6</SUB>H<SUB>12</SUB>O<SUB>6</SUB> -> CO<SUB>2</SUB> plus H<SUB>2</SUB>O With a wavy arrow showing the energy leaving the reaction.	The symbol equation for respiration is: C<SUB>6</SUB>H<SUB>12</SUB>O<SUB>6</SUB> -> CO<SUB>2</SUB> plus H<SUB>2</SUB>O With a wavy arrow showing the energy leaving the reaction.
What makes respiration an exothermic reaction?	Respiration is an exothermic chemical reactions because it releases energy when bigger molecules are split.	Respiration is an exothermic chemical reactions because it releases energy when bigger molecules are split.
How are leaves shaped to help photosynthesis?	Leaves are flat and so have a large surface area to collect the sunlight.	Leaves are flat and so have a large surface area to collect the sunlight.
How are palisade cells adapted to perform photosynthesis?	The palisade cells, found towards the top of the leaves, have lots of chloroplast which perform photosynthesis.	The palisade cells, found towards the top of the leaves, have lots of chloroplast which perform photosynthesis.
What is glucose converted into when stored in a plant?	Glucose is converted into starch for storage.	Glucose is converted into starch for storage.
What is used to test for starch and what is the colour change?	The test for starch is it reacts with iodine, turning black.	The test for starch is it reacts with iodine, turning black.
What is the role of the stomata in the plant?	the role of leaf stomata in gas exchange in plants	the role of leaf stomata in gas exchange in plants
what are the holes in the bottom of a leaf called?	Stomata	Stomata
How do plants gain water?	plants gaining water from the soil via their roots	Plants gaining water from the soil via their roots
How do plants gain the mineral nutrients they need?	plants gaining mineral nutrients from the soil via their roots	Plants gaining mineral nutrients from the soil via their roots
Why do root hair cells have no chloroplasts?	Root hair cells have no chloroplast because they do not receive light.	Root hair cells have no chloroplast because they do not receive light.
Why do root hair cells have a large surface area?	Root hair cells have a larger surface area to absorb more water and minerals.	Root hair cells have a larger surface area to absorb more water and minerals.
Where do stomata occur on the leaf?	There are more stomata on the bottom of the leaf than on the top	There are more stomata on the bottom of the leaf than on the top

Mod	Number of Questions
0S	10
1B	10
1C	10
1P	10
BI	5