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Questions and Answers
Which process do living organisms use to remove excess carbon dioxide from their bodies?
Which process do living organisms use to remove excess carbon dioxide from their bodies?
- respiration (correct)
- excretion
- movement
- nutrition
Using the features visible in the photograph, to which group of arthropods does the elephant hawk-moth belong?
Using the features visible in the photograph, to which group of arthropods does the elephant hawk-moth belong?
- myriapods
- arachnids
- insects (correct)
- crustaceans
What does the term species mean?
What does the term species mean?
- a group of organisms that can reproduce to produce fertile offspring (correct)
- all the plants that live in the same area at the same time
- a group of vertebrates that reproduce sexually
- a group of animals that reproduce asexually
The image shows an animal. The length of the animal in the image is 36 mm. The actual length of the animal is 12 mm. What is the magnification of the image?
The image shows an animal. The length of the animal in the image is 36 mm. The actual length of the animal is 12 mm. What is the magnification of the image?
The diagram shows a plant cell. Which features show that it is a plant cell?
The diagram shows a plant cell. Which features show that it is a plant cell?
Which cell structure does each antibiotic affect?
Which cell structure does each antibiotic affect?
How does carbon dioxide move from Y to X?
How does carbon dioxide move from Y to X?
In which row will the diffusion of ions into a cell be the quickest?
In which row will the diffusion of ions into a cell be the quickest?
Large biological molecules are made of smaller molecules. Which row correctly matches the large molecule with the smaller molecules?
Large biological molecules are made of smaller molecules. Which row correctly matches the large molecule with the smaller molecules?
A student tests a solution for protein. Which row shows the correct food test and a positive result?
A student tests a solution for protein. Which row shows the correct food test and a positive result?
What is a correct statement about enzymes?
What is a correct statement about enzymes?
Which statement about enzyme action is correct?
Which statement about enzyme action is correct?
In a graph examining the relationship between light intensity and photosynthesis, which axes represent the correct variables?
In a graph examining the relationship between light intensity and photosynthesis, which axes represent the correct variables?
Which of the following options is correct?
Which of the following options is correct?
Which vitamin is correctly matched with its use in the body and food source?
Which vitamin is correctly matched with its use in the body and food source?
Which substance is an ion that is used to make chlorophyll?
Which substance is an ion that is used to make chlorophyll?
What is the function of the gall bladder?
What is the function of the gall bladder?
Which type of tooth is circled?
Which type of tooth is circled?
A person ate food X. Chemical digestion of food X occurred in the mouth and small intestine but not in the stomach. What was in food X?
A person ate food X. Chemical digestion of food X occurred in the mouth and small intestine but not in the stomach. What was in food X?
What is present in a vascular bundle?
What is present in a vascular bundle?
What is the pathway taken by water from the soil to the leaf?
What is the pathway taken by water from the soil to the leaf?
What are methods for monitoring the activity of the heart?
What are methods for monitoring the activity of the heart?
The diagrams show four different types of cells. Which cell contains haemoglobin?
The diagrams show four different types of cells. Which cell contains haemoglobin?
What is a direct way of transmitting a pathogen?
What is a direct way of transmitting a pathogen?
The diagram shows the breathing system. Which structure is the diaphragm?
The diagram shows the breathing system. Which structure is the diaphragm?
What is the word equation for aerobic respiration?
What is the word equation for aerobic respiration?
Which diagram of the excretory system is labelled correctly?
Which diagram of the excretory system is labelled correctly?
Which characteristic of living organisms is this an example of?
Which characteristic of living organisms is this an example of?
Where is insulin secreted, and what is its effect on blood glucose concentration?
Where is insulin secreted, and what is its effect on blood glucose concentration?
Between which years was the greatest change in the number of cases of MRSA?
Between which years was the greatest change in the number of cases of MRSA?
Which row describes an insect-pollinated flower?
Which row describes an insect-pollinated flower?
Which part of the female reproductive system releases egg cells?
Which part of the female reproductive system releases egg cells?
Which adaptive feature of sperm provides the energy that enables it to swim?
Which adaptive feature of sperm provides the energy that enables it to swim?
What is a use of yeast in biotechnology?
What is a use of yeast in biotechnology?
Which of the following statements regarding animal behavior are correct? (Select all that apply)
Which of the following statements regarding animal behavior are correct? (Select all that apply)
The list shows statements about selection.
1 Individuals reproduce and pass on their alleles to the next generation.
2 Genetic variation exists between individuals and many offspring are produced.
3 Individuals struggle for survival and compete for resources.
4 Individuals that are better adapted to the environment survive.
5 Individuals with desirable features are selected by humans.
Which statements are correct descriptions of natural selection?
The list shows statements about selection. 1 Individuals reproduce and pass on their alleles to the next generation. 2 Genetic variation exists between individuals and many offspring are produced. 3 Individuals struggle for survival and compete for resources. 4 Individuals that are better adapted to the environment survive. 5 Individuals with desirable features are selected by humans. Which statements are correct descriptions of natural selection?
Some of the processes involved in the carbon cycle are listed.
1 combustion
2 decomposition
3 photosynthesis
4 respiration
During the carbon cycle, which processes release carbon dioxide into the atmosphere?
Some of the processes involved in the carbon cycle are listed. 1 combustion 2 decomposition 3 photosynthesis 4 respiration During the carbon cycle, which processes release carbon dioxide into the atmosphere?
What are the effects of sewage pollution on the biodiversity and the number of bacteria in a river?
What are the effects of sewage pollution on the biodiversity and the number of bacteria in a river?
The increase of which gases contributes to an enhanced greenhouse effect?
The increase of which gases contributes to an enhanced greenhouse effect?
Why are bacteria used in biotechnology?
Why are bacteria used in biotechnology?
Flashcards
What is respiration?
What is respiration?
The process living organisms use to remove excess carbon dioxide.
What is a species?
What is a species?
Organisms that can reproduce to produce fertile offspring.
Plant cell features?
Plant cell features?
It has a cell wall and a vacuole.
Antibiotic Effects?
Antibiotic Effects?
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Movement via diffusion?
Movement via diffusion?
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Quickest ion diffusion conditions?
Quickest ion diffusion conditions?
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Protein's building blocks?
Protein's building blocks?
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Protein test?
Protein test?
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What do enzymes do?
What do enzymes do?
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Enzyme action?
Enzyme action?
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Photosynthesis graph label?
Photosynthesis graph label?
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CO2 entry controller?
CO2 entry controller?
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Vitamin D use & source?
Vitamin D use & source?
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Key part of chlorophyll?
Key part of chlorophyll?
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Gall bladder function?
Gall bladder function?
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Food X chemical digestion?
Food X chemical digestion?
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Vascular bundle?
Vascular bundle?
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Water pathway?
Water pathway?
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Activity of the heart?
Activity of the heart?
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Hemoglobin location?
Hemoglobin location?
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Pathogen transmission?
Pathogen transmission?
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Aerobic respiration equation?
Aerobic respiration equation?
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Insulin's effect?
Insulin's effect?
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Bacteria's use in biotech?
Bacteria's use in biotech?
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Greenhouse gases?
Greenhouse gases?
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Study Notes
- Living organisms remove excess carbon dioxide through respiration.
- The elephant hawk-moth belongs to the group of arthropods known as insects.
- A species is a group of organisms that can reproduce to produce fertile offspring.
- Antibiotic penicillin affects the cell wall causing the cells to burst.
- Antibiotic tetracycline stops protein synthesis
- Penicillin affects the cell wall, while tetracycline affects the ribosomes.
- Carbon dioxide moves from an area of high concentration (Y) to an area of low concentration (X) via diffusion.
- Diffusion of ions into a cell is quickest when the ion concentration in the cell is low, ion concentration in the external solution is high, the surface area of the cell is large, and the width of the cell membrane is thin.
- Large biological molecules are made of smaller molecules, cellulose is made of fatty acids.
- A positive result for a protein test is the biuret test will turn purple.
- Enzymes speed up chemical reactions.
- The shape of an enzymes active site is complementary to the substrate.
- An experiment measuring the effects of light intensity the x-axis is labelled with light intensity.
- The y-axis of the graph is labeled as rate of oxygen production.
- The type of cell controls the entry of carbon dioxide into the leaf is labelled as "A".
- Vitamin D strengthens bones and teeth while fish oil is a good food source for it.
- Magnesium is an ion used to make chlorophyll.
- The gallbladder functions in the storage of bile.
- In the diagram of teeth, the teeth that are circled are premolars.
- Starch is chemically digested in the mouth and small intestine, but not in the stomach.
- Xylem vessels are present in a vascular bundle.
- Water travels from the soil to the leaf through root hair cells, then the root cortex, then the mesophyll, and finally the xylem.
- ECG and measuring pulse are methods for monitoring heart activity.
- An ECG gives yes reading; measuring pulse rate and listening to sounds of valves closing read no.
- One of the cells contains haemoglobin.
- A direct way to transmit a pathogen is through contact with contaminated blood.
- In the diagram of the breathing system, the structure labelled as "C" is the diaphragm.
- The word equation for aerobic respiration is: oxygen + glucose → carbon dioxide + water.
- In the excretory system diagram, bladder, ureter, and urethra are correctly positioned.
- The diagram with the iris and pupil in different light conditions is an example of sensitivity as a characteristic of living organisms.
- Insulin is secreted by the pancreas and decreases blood glucose concentration.
- The greatest change in the number of MRSA cases occurred between 2002 and 2003, as shown in the graph.
- An insect-pollinated flower has an anther inside the flower, pollen that is large and sticky, and a stigma.
- The ovary is the part of the female reproductive system is responsible for releasing the egg cells.
- The mitochondria is an adaptive feature of the sperm that provides the energy needed for the sperm to swim.
- Anaerobic respiration is how yeast is used to make bread.
- Mammals and birds use color to pass on their features.
- Color is used for hiding from animals which might eat them, hiding from animals which they could eat, and warning animals that they are poisonous.
- Statements 1, 2, 3, and 4 correctly describe natural selection In selection individuals reproduce and pass on their alleles to the next generation.
- Genetic variation exists between individuals and many offspring are produced as part of selection.
- During selection individuals struggle for survival and compete for resources.
- During selection individuals that are better adapted to the environment survive.
- Combustion and respiration release carbon dioxide into the atmosphere during the carbon cycle.
- Sewage pollution decreases biodiversity and increases the number of bacteria in a river.
- An increase in carbon dioxide and methane contributes to an enhanced greenhouse effect.
- Bacteria reproduce rapidly, is why they are used in biotechnology.
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