WorksheetsAQA GCSE BIOLOGY - BIOENERGETICS
Total questions: 48
Worksheet time: 24mins
Which two industries use anaerobic respiration carried out by yeast?
Baking and brewing
Brewing and building
Baking and farming
Brewing and farming
What are the products of anaerobic respiration in animals?
Ethanol and carbon dioxide
Lactic acid and carbon dioxide
Ethanol only
Lactic acid only
Carbon dioxide enters the leaf via…
the cuticle
phloem
stomata
guard cells
What change occurs in the guard cells to close the stomata?
Guard cells gain water
Guard cells lose water
Guard cells swell
Guard cells transpire
Which gas needs to be in short supply for anaerobic respiration to occur?
Oxygen
Carbon dioxide
Nitrogen
Water vapour
Which gas is used in aerobic respiration?
Carbon dioxide
Oxygen
Water vapour
Nitrogen
What is the green pigment in plants called?
Chloroplast
Chlorophyll
Cytoplasm
Cellulose
In which organelle does aerobic respiration occur?
Chloroplasts
Ribosomes
The nucleus
Mitochondria
How do the reactants of respiration get into animal cells?
By diffusion through the walls of veins
By active transport through the walls of capillaries
By osmosis from the veins
By diffusion through the walls of capillaries
What is the name of the process in which water vapour is lost from the plants?
Translocation
Transpiration
Transportation
Transparent
What is the best definition of the term "oxygen debt"?
The amount of oxygen required for muscle contraction
The amount of oxygen released when muscles contract
The amount of oxygen needed to break down the lactic acid formed during anaerobic respiration
The oxygen required to keep warm after exercise
What is the test for starch?
Iodine test
Benedict's test
Emulsion test
Biuret test
What do you call the type of reaction that builds large molecules from smaller ones?
Catabolic
Anabolic
Metabolic
Hyperbolic
Some mineral ions enter root hair cells by active transport.
What is active transport?
The movement of a substance down the concentration gradient without transferring any energy
The movement of a substance down the concentration gradient using energy
The movement of a substance against the concentration gradient, without the use of ATP
The movement of a substance against the concentration gradient using energy from ATP hydrolysis
Which two substances are needed for aerobic respiration in plant cells?
Glucose and oxygen
Glucose and carbon dioxide
Glucose and water
Water and carbon dioxide
Which ion do plants need to make chlorophyll?
Phosphate
Magnesium
Nitrate
Potassium
Which type of respiration produces the most ATP?
Anaerobic respiration
Aerobic respiration
Both produce the same amount
Neither produce any ATP
In an experiment to measure the rate of photosynthesis, the number of oxygen bubbles produced is the…
independent variable
dependent variable
control variable
categoric variable
In which organ is urea made?
Lungs
Kidneys
Heart
Liver
How many hydrogen and oxygen atoms are there in one molecule of glucose?
6 x O and 6 x H
12 x O and 12 x H
12 x O and 6 x H
6 x O and 12 x H
When do plants respire?
In the daylight
In the dark
Never
All the time (24/7)
Which substance leads to cramp and muscle fatigue during anaerobic respiration?
Lactic acid
Ethanol
Carbon dioxide
Hydrochloric acid
What is the main substrate for respiration?
Fat
Water
Protein
Glucose
Why are leaves flat rather than spherical?
To absorb more carbon dioxide
To absorb more oxygen
To release more carbon dioxide
To release more water
What is needed, along with glucose, to make amino acids?
Phosphate ions
Magnesium ions
Nitrate ions
Potassium ions
When do plants grow fastest?
Spring
Summer
Autumn
Winter
Which chemical elements are found in glucose?
Carbon and hydrogen only
Hydrogen and oxygen only
Carbon, hydrogen, oxygen and nitrogen only
Carbon, hydrogen and oxygen only
What are plant cell walls made of?
Starch
Protein
Amino Acids
Cellulose
In plant cells, where does most photosynthesis occur?
Palisade mesophyll cells
Epidermal cells
Spongy mesophyll cells
Guard cells
Which of these statements describes the function of the waxy cuticle on the leaf?
Allows gas exchange
Allows water to enter the leaf cells
Absorbs light energy for photosynthesis
Prevents water loss
How is glucose stored inside plant cells?
As protein molecules
Inside the mitochondria
In cellulose
As starch grains
Cell metabolism is defined as…
the breakdown of large insoluble molecules
the speed at which molecules are broken down
the rate at which molecules are synthesised
the sum of all the reactions in the cell
Which of the following affect the rate of photosynthesis?
Temperature, amount of carbon dioxide and light intensity
Light intensity and amount of water
Light intensity only
Amount of water and temperature
In which organelle does photosynthesis occur?
Mitochondria
Chloroplasts
Chlorophyll
Ribosomes
What are the reactants for photosynthesis?
Carbon dioxide and water
Water and oxygen
Glucose and oxygen
Carbon dioxide and sunlight
What type of reaction is photosynthesis?
Exothermic
Endothermic
Thermal decomposition
Oxidation
Which of these statements about light intensity is correct?
Light intensity is proportional to 1/distance squared
Light intensity is inversely proportional to distance
Light intensity equals distance of lamp from plant
Light intensity is proportional to 1/distance
Which of the following is an adaptation of leaves to photosynthesis?
Few chloroplasts
A small surface area to volume ratio
Thick cuticle
A large surface area to volume ratio
What is made from excess amino acids in the body?
Proteins
Urea
Cholesterol
Starch
What are the products of anaerobic respiration in yeast and plant cells?
Ethanol and carbon dioxide
Lactic acid and carbon dioxide
Ethanol only
Lactic acid only
What conditions lead to the stomata closing?
Hot, humid and still
Cold, dry and windy
Hot, dry and windy
Cold, humid and still
From which organ is carbon dioxide excreted?
Skin
Kidneys
Lungs
Stomach
Which of the following can photosynthesise?
Only plants
Only algae
Just plants and algae
Plants, algae and some bacteria
In which organ is urine made?
Lungs
Kidneys
Heart
Liver
What changes occur during vigorous exercise?
Heart rate increases; breathing rate increases; depth of breathing increases
Heart rate increases; breathing rate decreases; depth of breathing decreases
Heart rate decreases; breathing rate increases; depth of breathing decreases
Heart rate decreases; breathing rate decreases; depth of breathing increases
Which groups of animals use energy to move AND keep warm?
Mammals and reptiles
Mammals and amphibians
Mammals and birds
Mammals and fish
How is temperature monitored in a photosynthesis experiment?
Using a thermometer
By putting the apparatus in a water bath
Using a buffer
By putting it next to a radiator
Photosynthesis stops at very high temperatures.
The best explanation of this is…
the plant wilts
the chlorophyll breaks down
enzymes denature
enzymes are killed
