Test
AQA GCSE Biology Unit 2.2
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Preguntas del test (20)
1Which of these is the correct, general, word equation for photosynthesis?
- Awater + carbon dioxide --> glucose + oxygen
- Bwater + oxygen --> glucose + carbon dioxide
- Cglucose + oxygen --> water + carbon dioxide
2Which of these is the correct, general, balanced symbol equation for photosynthesis?
- AC6H12O6 + 6O2 --> 6H2O + 6CO2
- B6H2O + 6CO2 --> C6H12O6 + 6O2
- C6H2O + 6O2 --> C6H12O6 + 6CO2
3True or false? The name of the pigment used in photosynthesis which converts light energy into chemical energy is called xanthophyll.
- AVerdadero
- BFalso
4Which of these tests would you use to detect the presence of starch?
- ATollens' reagent
- BBiuret reagent
- CBenedict's reagent
- DIodine solution
5Which of these abiotic factors are considered limiting for photosynthesis?
- ATemperature
- BHumidity of air
- CConcentration of CO2
- DLight
- EAcidity of soil
6Which limiting factor causes photosynthesis to stop if it becomes too high?
- ALight intensity
- BTemperature
- CConcentration of CO2
7True or false? Algae produce more oxygen and biomass by photosynthesis than plants.
- AVerdadero
- BFalso
8Which of these complex molecules is used by plants for storage of glucose?
- AProtein
- BCellulose
- CStarch
- DGlycogen
- EFats and oils
9Which of these mineral ions is essential for the construction of amino acids to make proteins?
- ANH4(+)
- BPO4(3-)
- CNO3(-)
- DMg(2+)
10True or false? Plants must store glucose as starch because starch is osmotically inactive.
- AVerdadero
- BFalso
11Which of these methods of maximising photosynthesis is exclusive to hydroponic systems?
- ASuspending plants in water with a perfect balance of mineral ions
- BRaising internal temperature through glass or plastic roofs
- CUsing computers to control light intensity, CO2 concentration and temperature
12How does low temperature affect the size of plants?
- AIt makes them larger
- BIt does not affect them
- CIt makes them smaller
13Which of these plants would be most suitable in a soil with low concentrations of nitrate ions?
- ABelladonna
- BVenus fly trap
- COleander
14True or false? In deserts, plants stay out all year round and flower very slowly.
- AVerdadero
- BFalso
15True or false? Mosquitoes are adapted to finding human prey as they are attracted to high carbon dioxide levels caused by exhalation.
- AVerdadero
- BFalso
16What is a quadrat?
- AA square grid used for measuring the distribution of organisms
- BA small mammal that is usually found near motorbike racing courses
- COne of the four regions in a Cartesian grid
17Which of these methods would be a scientific way of choosing a random sample for a quadrat?
- AThrowing a quadrat randomly anywhere
- BDividing the region into four sections and then choosing an equal random sample from each
- CDividing the region into squares of the same size as the quadrat and using a random number generator
- DWalking ten paces and throwing the quadrat in front of you
18Which of these steps would you not do if you were carrying out a line transect?
- AMeasure a line between two points
- BTake readings of physical factors at each measurement
- CUse a random number generator to decide where to measure
- DMeasure at regular intervals
19How would you find out the mean of a sample?
- ASubtract the lowest value from the highest
- BTake the middle answer when in ascending order
- CTake the most common answer
- DDivide the sum of all the readings by the number of readings
20True or false? Valid data is where another person could repeat the experiment with different equipment and get the same answer.
- AVerdadero
- BFalso
Información
- Descripción
- Twenty questions for the second section of Unit 2 in AQA GCSE Biology: Organisms in the environment.
- Autor
- Matthew T
- Idioma
- English
- Visitas
- 431
- Etiquetas
- Valoración
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