2 votes, 5 avg 0 AQA Biology (9201) Question Count : 30 Duration :45 minutes Hello . TIME UP!!! Try Again AQA Biology (9201) 30 Different Questions Every time 1 / 30 Yeast cells can respire anaerobically. 0 1 . 3 Complete the word equation for anaerobic respiration in yeast. Choose the answer (ethanol, glycerol, starch, urea.) glucose → ………….. + carbon dioxide glycerol ethanol starch urea 2 / 30 Tardigrades can survive in extremely cold and dry conditions. In extreme conditions, tardigrades have the following adaptations: 1. Produce a waxy layer to cover their body surface. 2. Curl up into a tiny ball. 3. Are light enough to be carried by the wind. Describe how each adaptation helps the tardigrade to survive. You should give a different reason for each adaptation. Adaptation 1 Adaptation 2 Adaptation 3 Check 3 / 30 Digestive enzymes break down insoluble molecules into smaller, soluble molecules. Name two insoluble molecules digested by enzymes. Choose the answers (amino acid, fat, fatty acid, glucose, protein) fat and fatty acid protein and amino acid protein and fat fat and protein 4 / 30 This question is about white blood cells and pathogens. White blood cells have cell membranes. Describe the function of the cell membrane. Check 5 / 30 Skin cells contain many ribosomes. Suggest why ribosomes are not visible in Figure 6. Check 6 / 30 The number of people who smoke cigarettes has decreased since the 1990s. Choose reason why Above all better education about the risks of smoking warning on cigarette packaging restrictions on advertising 7 / 30 Describe two possible effects that a faulty valve can have on the functioning of the heart. heart will not work harder blood flows backwards blood flows forwards full amount of blood does not leave the heart 8 / 30 Tardigrades can reproduce both sexually and asexually. During asexual reproduction, the female produces offspring from eggs which have not been fertilised. Give one advantage to the female if she does not need to find a mate. Check 9 / 30 Label parts A on Figure 1. Lysosome Cytoplasm Cell membrane Ribosome 10 / 30 People must be vaccinated with a new vaccine each year to prevent infection from influenza. Explain why a new vaccine is used each year. Check 11 / 30 What does heterozygous mean? Check 12 / 30 Ebola is a disease caused by a viral pathogen. The Ebola virus attaches to the cell membranes of some body cells. The Ebola virus can spread very quickly by direct contact with infected patients or their body fluids Choose one other way to reduce the spread of the Ebola virus. None of the above isolate infected people use of antiviral drugs wear protective clothing when dealing with the dead / patients bury the dead as soon as possible 13 / 30 Ebola viruses enter box the cells and reproduce rapidly. The cells then burst and release many copies of the viruses. When white blood cells burst they release proteins that block blood flow to the liver. The liver fails because there is a lack of blood flow. A failing liver cannot produce sufficient chemicals for blood clotting. Suggest one symptom a person might have if the blood does not clot. Check 14 / 30 The size of the stomata can be controlled. What parts of the leaf control the size of the stomata? guard cells Xylem cells Phloem cells Palisade cells 15 / 30 B A 16 / 30 A B 17 / 30 In Mendel’s breeding experiment there were 297 purple flowers and 105 white flowers in the second generation. Calculate the actual ratio Mendel achieved. Give your answer to 3 significant figures. Ratio of purple flowers : white flowers =? Check 18 / 30 Mendel published his results in 1866, but his ideas were ignored until the early 1900s. Suggest one reason why people did not accept Mendel’s ideas in 1866. Check 19 / 30 Label parts B on Figure 1. Nucleus Cell membrane Nucleolus cytoplasm 20 / 30 A leaf has many pores called stomata. Water vapour is lost from a plant by diffusion through the stomata. At what temperature would most water vapour be lost from a leaf? 35 degree celsius 20 degree celsius 25 degree celsius 30 degree celsius 21 / 30 What is the main type of tissue found in the wall of the heart? Check 22 / 30 What does anaerobic mean? with oxygen without oxygen 23 / 30 Which specimen in Table 1 would be visible without a microscope? Check 24 / 30 Give the reason why the volume of the mixture did not increase at 80 °C. Check 25 / 30 Increased levels of carbon dioxide in the atmosphere contribute to global warming. Choose two possible effects of global warming. none of the above rise in sea level ice caps melting changes in the Earth’s climate 26 / 30 Structures A, B, C and D are valves. Which valve opens when the blood pressure in the right ventricle is greater than the blood pressure in the pulmonary artery? Write the correct letter Check 27 / 30 Owls are large birds. Owls eat mice and small birds. Which food chain is the most efficient at transferring energy from plants to owls? plants → mice → owl plants → caterpillars → mice→ owl plants → insects → spiders → small birds→ owl plants → caterpillars → small birds→ owl 28 / 30 A: photosynthesis B: respiration C: combustion / burning A: combustion / burning B: respiration C: photosynthesis A: respiration B: photosynthesis C: combustion / burning 29 / 30 A leaf is a plant organ. Name two other plant organs. Check 30 / 30 cow = 9 sectors, & sheep = 9 sectors cow = 17 sectors, & sheep = 2 sectors cow = 2 sectors, & sheep = 17 sectors NameEmailPhone NumberCountry Your score is LinkedIn Facebook Twitter 0% Restart quiz Send feedback
AQA Biology (9201) Question Count : 30
Duration :45 minutes
Hello .
TIME UP!!! Try Again
AQA Biology (9201)
30 Different Questions Every time
1 / 30
Yeast cells can respire anaerobically. 0 1 . 3 Complete the word equation for anaerobic respiration in yeast. Choose the answer (ethanol, glycerol, starch, urea.)
glucose → ………….. + carbon dioxide
2 / 30
Tardigrades can survive in extremely cold and dry conditions. In extreme conditions, tardigrades have the following adaptations: 1. Produce a waxy layer to cover their body surface. 2. Curl up into a tiny ball. 3. Are light enough to be carried by the wind. Describe how each adaptation helps the tardigrade to survive. You should give a different reason for each adaptation. Adaptation 1 Adaptation 2 Adaptation 3
3 / 30
Digestive enzymes break down insoluble molecules into smaller, soluble molecules. Name two insoluble molecules digested by enzymes. Choose the answers (amino acid, fat, fatty acid, glucose, protein)
4 / 30
This question is about white blood cells and pathogens. White blood cells have cell membranes. Describe the function of the cell membrane.
5 / 30
Skin cells contain many ribosomes. Suggest why ribosomes are not visible in Figure 6.
6 / 30
The number of people who smoke cigarettes has decreased since the 1990s. Choose reason why
7 / 30
Describe two possible effects that a faulty valve can have on the functioning of the heart.
8 / 30
Tardigrades can reproduce both sexually and asexually. During asexual reproduction, the female produces offspring from eggs which have not been fertilised. Give one advantage to the female if she does not need to find a mate.
9 / 30
Label parts A on Figure 1.
10 / 30
People must be vaccinated with a new vaccine each year to prevent infection from influenza. Explain why a new vaccine is used each year.
11 / 30
What does heterozygous mean?
12 / 30
Ebola is a disease caused by a viral pathogen. The Ebola virus attaches to the cell membranes of some body cells. The Ebola virus can spread very quickly by direct contact with infected patients or their body fluids
Choose one other way to reduce the spread of the Ebola virus.
13 / 30
Ebola viruses enter box the cells and reproduce rapidly. The cells then burst and release many copies of the viruses. When white blood cells burst they release proteins that block blood flow to the liver. The liver fails because there is a lack of blood flow. A failing liver cannot produce sufficient chemicals for blood clotting. Suggest one symptom a person might have if the blood does not clot.
14 / 30
The size of the stomata can be controlled. What parts of the leaf control the size of the stomata?
15 / 30
16 / 30
17 / 30
In Mendel’s breeding experiment there were 297 purple flowers and 105 white flowers in the second generation. Calculate the actual ratio Mendel achieved. Give your answer to 3 significant figures.
Ratio of purple flowers : white flowers =?
18 / 30
Mendel published his results in 1866, but his ideas were ignored until the early 1900s. Suggest one reason why people did not accept Mendel’s ideas in 1866.
19 / 30
Label parts B on Figure 1.
20 / 30
A leaf has many pores called stomata. Water vapour is lost from a plant by diffusion through the stomata. At what temperature would most water vapour be lost from a leaf?
21 / 30
What is the main type of tissue found in the wall of the heart?
22 / 30
What does anaerobic mean?
23 / 30
Which specimen in Table 1 would be visible without a microscope?
24 / 30
Give the reason why the volume of the mixture did not increase at 80 °C.
25 / 30
Increased levels of carbon dioxide in the atmosphere contribute to global warming.
Choose two possible effects of global warming.
26 / 30
Structures A, B, C and D are valves. Which valve opens when the blood pressure in the right ventricle is greater than the blood pressure in the pulmonary artery? Write the correct letter
27 / 30
Owls are large birds. Owls eat mice and small birds. Which food chain is the most efficient at transferring energy from plants to owls?
28 / 30
29 / 30
A leaf is a plant organ. Name two other plant organs.
30 / 30
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1 votes, 5 avg 4 AQA Chemistry (9202) Question Count : 30 Duration :45 minutes Hello . TIME UP!!! Try Again AQA Chemistry (9202) 30 Different Questions Every time 1 / 30 What is the useful type of energy produced by fuel cells? Activation energy Kinetic energy Electrical energy Thermal energy 2 / 30 What is the trend in melting point as you go down Group 7? increases decrease no change 3 / 30 17% 7% 10% 70% 4 / 30 Name the metal ion present in solution C. Check 5 / 30 How do the results in Table 1 show that zinc carbonate reacts completely? Check 6 / 30 Hydrogen gas forms hydrogen ions at the negative electrode in a fuel cell. Complete the half equation for this reaction. H2 → ……… + …….. e– H2 → 2H+ + 3e– H2 → 3H+ + 2e– H2 → 2H+ + 2e– 7 / 30 Choose a word equation for the overall chemical reaction that takes place in the hydrogen fuel cell water + oxygen → hydrogen hydrogen + oxygen → water hydrogen + water → oxygen 8 / 30 why an atom of sodium has no overall charge number of protons more than electrons same number of protons and electrons No protons and No electrons 9 / 30 Give a suitable temperature for the water bath …………ºC 60–75 (°C) 10–15 (°C) 20–35 (°C) 40–50 (°C) 10 / 30 Give the names of the two products formed by the complete combustion of octane Check 11 / 30 Name the other product formed by the electrolysis of sodium chloride solution Check 12 / 30 Sodium is a metal in Group 1 of the periodic table. An atom of sodium has the symbol 11Na 23 Give the number of protons and neutrons in an atom of sodium. Number of protons = ? Number of neutrons = ? protons 12 & neutrons 12 protons 11 & neutrons 12 protons 11 & neutrons 11 protons 12 & neutrons 11 13 / 30 Check 14 / 30 Which statement is correct for elements with the same number of outer shell electrons in their atoms? They have similar boiling points They have the same number of protons in their atoms. They burn with the same coloured flame. They have similar chemical properties. 15 / 30 A student investigates the reactivity of four metals, A box , B, C and D. This is the method the student uses. 1) Add a piece of metal A to some cold water and another piece to some dilute hydrochloric acid. 2) Observe the rate of bubbling. 3) Repeat steps 1 and 2 with metals B, C and D. The student wants to ensure the investigation is a fair test. select two variables the student should control. not same temperature not same volume of water same volume of acid same concentration of acid 16 / 30 Check 17 / 30 Crude oil contains alkanes. Alkanes are hydrocarbons. What is a hydrocarbon? contain only carbon atoms contain only carbon and hydrogen atoms contain only hydrogen atoms 18 / 30 If diesel undergoes incomplete combustion it may produce tiny solid particles called particulates. Give one reason why diesel may undergo incomplete combustion rather than complete combustion Check 19 / 30 What is the centre of the atom called? Check 20 / 30 The elements in the periodic table are arranged in the order of increasing ……..? Atomic number neutron number mass number 21 / 30 A student does a flame test on a solution of potassium chloride. Give the colour of the flame produced. Red Milky Blue lilac 22 / 30 Give the test for hydrogen gas Check 23 / 30 Give the symbols of the ions in potassium chloride. K+ and Cl– K+ and Cl+ K– and Cl– K and Cl 24 / 30 What is the general formula for alkanes? CnH2n CnHn CnH2n+2 CnHn+1 25 / 30 This question is about crude oil and substances found in it. Complete the sentence. Choose the answer from the box.(base, mixture, non-metal, polymer) Crude oil is a…………. . mixture polymer base non-metal 26 / 30 This question is about alcohols. Some ethanol is dissolved in water. What is the pH of the solution? 9 5 11 7 27 / 30 Octane (C8H18) is used as a fuel. The carbon and hydrogen in octane are oxidised during combustion What does oxidised mean? lose oxygen gain oxygen 28 / 30 What type of reaction produces ethanol from sugar? Neutralisation Decomposition Combustion Fermentation 29 / 30 Iron is extracted in a blast furnace. Balance the equation for the reaction Fe2O3 + ….CO → ….Fe + ….CO2 Fe2O3 + 2 CO → 2 Fe + 3 CO2 Fe2O3 + 3 CO → 2 Fe + 2 CO2 Fe2O3 + 4 CO → 2 Fe + 3 CO2 Fe2O3 + 3 CO → 2 Fe + 3 CO2 30 / 30 1.heat, 2.electricity, 3.layers 1.electricity, 2.heat, 3.layers 1.layers, 2.electricity, 3.heat NameEmailPhone NumberCountry Your score is LinkedIn Facebook Twitter 0% Restart quiz Send feedback
AQA Chemistry (9202) Question Count : 30
AQA Chemistry (9202)
What is the useful type of energy produced by fuel cells?
What is the trend in melting point as you go down Group 7?
Name the metal ion present in solution C.
How do the results in Table 1 show that zinc carbonate reacts completely?
Hydrogen gas forms hydrogen ions at the negative electrode in a fuel cell. Complete the half equation for this reaction. H2 → ……… + …….. e–
Choose a word equation for the overall chemical reaction that takes place in the hydrogen fuel cell
why an atom of sodium has no overall charge
Give a suitable temperature for the water bath …………ºC
Give the names of the two products formed by the complete combustion of octane
Name the other product formed by the electrolysis of sodium chloride solution
Sodium is a metal in Group 1 of the periodic table. An atom of sodium has the symbol 11Na 23 Give the number of protons and neutrons in an atom of sodium. Number of protons = ? Number of neutrons = ?
Which statement is correct for elements with the same number of outer shell electrons in their atoms?
A student investigates the reactivity of four metals, A box , B, C and D. This is the method the student uses. 1) Add a piece of metal A to some cold water and another piece to some dilute hydrochloric acid. 2) Observe the rate of bubbling. 3) Repeat steps 1 and 2 with metals B, C and D. The student wants to ensure the investigation is a fair test. select two variables the student should control.
Crude oil contains alkanes. Alkanes are hydrocarbons. What is a hydrocarbon?
If diesel undergoes incomplete combustion it may produce tiny solid particles called particulates. Give one reason why diesel may undergo incomplete combustion rather than complete combustion
What is the centre of the atom called?
The elements in the periodic table are arranged in the order of increasing ……..?
A student does a flame test on a solution of potassium chloride. Give the colour of the flame produced.
Give the test for hydrogen gas
Give the symbols of the ions in potassium chloride.
What is the general formula for alkanes?
This question is about crude oil and substances found in it. Complete the sentence. Choose the answer from the box.(base, mixture, non-metal, polymer) Crude oil is a…………. .
This question is about alcohols.
Some ethanol is dissolved in water. What is the pH of the solution?
Octane (C8H18) is used as a fuel.
The carbon and hydrogen in octane are oxidised during combustion
What does oxidised mean?
What type of reaction produces ethanol from sugar?
Iron is extracted in a blast furnace. Balance the equation for the reaction
Fe2O3 + ….CO → ….Fe + ….CO2
1 votes, 5 avg 1 AQA Physics (9203) Question Count : 30 Duration :45 minutes Hello . TIME UP!!! Try Again AQA Physics (9203) 30 Different Questions Every time 1 / 30 The boy hears a sound wave emitted by the television. The sound wave has a frequency of 2500 Hz and a wavelength of 13.8 cm. Calculate the speed of the sound wave through the air. Use the Physics Equations Sheet. Speed of sound wave through the air = …………………m/s v = 500 m/s v = 345 m/s v = 400 m/s v = 545 m/s 2 / 30 A B 3 / 30 Galaxy and sun Moon and Earth Neutron star and Black hole Earth and Sun 4 / 30 Identify two control variables in this investigation. The mass of the dron The mass of the package The brightness of the “battery low” light Hover time The initial charge stored in the battery 5 / 30 When the person uses the paddle, the forces on the paddle create moments. What is meant by the moment of a force? Check 6 / 30 A: soft iron core, B: primary coil, C: secondary coil A: secondary coil, B: primary coil, C: soft iron core A: primary coil, B: soft iron core, C: secondary coil 7 / 30 The fins are made of metal. Why are metals good thermal conductors? because they don’t have electrons because they contain free electrons because they contain free protons 8 / 30 Waves can be transverse or longitudinal. What is the name given to the time taken for one complete oscillation of a wave? Period Wavelength Frequency Amplitude 9 / 30 Complete the sentence. Choose answers from below. The image in a plane mirror is……………….. and……………….. . inverted & magnified upright & virtual real 7 virtual magnified & upright 10 / 30 Most of the radiation emitted by the component is infrared radiation. Choose two changes to the infrared radiation emitted by the computer component as the temperature of the component increases frequency decreases intensity increases frequency increases wavelength increases 11 / 30 Calculate the acceleration between points C and D. Acceleration = ………….m/s2 5 m/s<sup>2</sup> 0.31 m/s<sup>2</sup> 6 m/s<sup>2</sup> 3 m/s<sup>2</sup> 12 / 30 The mass of the ball is 450 g. Calculate the kinetic energy of the ball. Use the Physics Equations Sheet. Kinetic energy =…………….J Ek = 10 J Ek = 9 J Ek = 900 J Ek = 90 J 13 / 30 Suggest one reason why the computer may transfer less energy The computer wastes some energy The computer may not always work at full power The computer creates extra energy 14 / 30 The weight of the horse is 6.37 kN. Calculate the kinetic energy of the horse at point B. gravitational field strength = 9.8 N/kg Give your answer to 2 significant figures. Use the Physics Equations Sheet. Kinetic energy = …………….J E<sub>k</sub> = 1000 J E<sub>k</sub> = 11 000 J E<sub>k</sub> = 15 000 J 15 / 30 What equipment should the student have used to measure the angle of incidence? Ruler Set-square Compass Protractor 16 / 30 The space probe is currently at the edge of our solar system. Scientists use a unit called the astronomical unit (AU) to measure the large distances in the solar system. 1 AU = 1.5 × 1011 m The signals that the space probe sends back to Earth travel at a speed of 3.0 × 108 m/s. The space probe is currently 120 AU from Earth. Calculate the time it takes for a signal from the space probe to reach Earth. Give your answer in hours. 20 hours 17 hours 1 hours 10 hours 17 / 30 What is the name of the force that causes the string to hang vertically? Check 18 / 30 B C D A 19 / 30 Where does nuclear fusion occur naturally? Check 20 / 30 The sensors in car A emit and detect radio waves. The radio waves have a frequency of 7.7 × 1010 Hz. The speed of radio waves is 3.0 × 108 m/s. Calculate the wavelength of the radio waves. 39 m 3.0039 m 40 m 0.0039 m 21 / 30 Complete the sentences to explain the method of energy transfer shown in Figure 5 The average distance between the particles……………………. stays the same decreases increases 22 / 30 1 8 6 4 23 / 30 The current in the sensor causes a force to be exerted on the magnet. In which direction is the force on the magnet? Opposite to the direction the magnet is moving in. Perpendicular to the direction the magnet is moving in. In the same direction the magnet is moving in. 24 / 30 Determine the difference in speed between Titan and Rhea. Difference in speed = ………….km/s 300 km/s 30 km/s 3.0 km/s 35 km/s 25 / 30 Calculate the current in the power supply in Figure 13. Current =………….A 24 A 444 A 2.4 A 22 A 26 / 30 Calculate the potential difference across the lamp in Figure 13. Potential difference = ………..V 60 V 40 V 70 V 50 V 27 / 30 The refractive index of Perspex is 1.49 Calculate the critical angle of Perspex. 22ᵒ 52ᵒ 42ᵒ 62ᵒ 28 / 30 During 1 week the computer transfers 12 kWh of energy. cost per kWh = $0.15 Calculate the cost of using the computer for 1 week. $3.80 $2.80 $4.80 $1.80 29 / 30 What is a beta particle? An electron emitted from an energy level of the atom. Two neutrons and two protons emitted from the nucleus. An electron emitted from the nucleus A neutron emitted from the nucleus. 30 / 30 3.5 kWh 1.5 kWh 4.5 kWh 2.5 kWh NameEmailPhone NumberCountry Your score is LinkedIn Facebook Twitter 0% Restart quiz Send feedback
AQA Physics (9203) Question Count : 30
AQA Physics (9203)
The boy hears a sound wave emitted by the television. The sound wave has a frequency of 2500 Hz and a wavelength of 13.8 cm. Calculate the speed of the sound wave through the air. Use the Physics Equations Sheet.
Speed of sound wave through the air = …………………m/s
Identify two control variables in this investigation.
When the person uses the paddle, the forces on the paddle create moments. What is meant by the moment of a force?
The fins are made of metal. Why are metals good thermal conductors?
Waves can be transverse or longitudinal.
What is the name given to the time taken for one complete oscillation of a wave?
Complete the sentence. Choose answers from below.
The image in a plane mirror is……………….. and……………….. .
Most of the radiation emitted by the component is infrared radiation. Choose two changes to the infrared radiation emitted by the computer component as the temperature of the component increases
Calculate the acceleration between points C and D.
Acceleration = ………….m/s2
The mass of the ball is 450 g. Calculate the kinetic energy of the ball. Use the Physics Equations Sheet.
Kinetic energy =…………….J
Suggest one reason why the computer may transfer less energy
The weight of the horse is 6.37 kN. Calculate the kinetic energy of the horse at point B. gravitational field strength = 9.8 N/kg Give your answer to 2 significant figures. Use the Physics Equations Sheet.
Kinetic energy = …………….J
What equipment should the student have used to measure the angle of incidence?
The space probe is currently at the edge of our solar system. Scientists use a unit called the astronomical unit (AU) to measure the large distances in the solar system. 1 AU = 1.5 × 1011 m The signals that the space probe sends back to Earth travel at a speed of 3.0 × 108 m/s. The space probe is currently 120 AU from Earth. Calculate the time it takes for a signal from the space probe to reach Earth. Give your answer in hours.
What is the name of the force that causes the string to hang vertically?
Where does nuclear fusion occur naturally?
The sensors in car A emit and detect radio waves. The radio waves have a frequency of 7.7 × 1010 Hz. The speed of radio waves is 3.0 × 108 m/s. Calculate the wavelength of the radio waves.
Complete the sentences to explain the method of energy transfer shown in Figure 5
The average distance between the particles…………………….
The current in the sensor causes a force to be exerted on the magnet. In which direction is the force on the magnet?
Determine the difference in speed between Titan and Rhea.
Difference in speed = ………….km/s
Calculate the current in the power supply in Figure 13.
Current =………….A
Calculate the potential difference across the lamp in Figure 13.
Potential difference = ………..V
The refractive index of Perspex is 1.49 Calculate the critical angle of Perspex.
During 1 week the computer transfers 12 kWh of energy. cost per kWh = $0.15 Calculate the cost of using the computer for 1 week.
What is a beta particle?