Zusammenfassung der Ressource
Frage 1
Frage
Match each description with the correct characteristic of a living organism:
Taking in of nutrients which are organic substances and mineral ions, containing raw materials or energy for growth and tissue repair, absorbing and assimilating them. [blank_start]_____[blank_end]
The chemical reactions that break down nutrient molecules in living cells to release energy. [blank_start]_____[blank_end]
A permanent increase in size and dry mass by an increase in cell number or cell size or both. [blank_start]_____[blank_end]
Removal from organisms of toxic materials, the waste products of metabolism (chemical reactions in cells including respiration) and substances in excess of requirements. [blank_start]______[blank_end]
An action by an organism or part of an organism causing a change of position or place. [blank_start]_____[blank_end]
The ability to detect or sense changes in the environment (stimuli) and to make responses. [blank_start]_____[blank_end]
The processes that make more of the same kind of organism. [blank_start]_______[blank_end]
Antworten
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Nutrition
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Respiration
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Growth
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Excretion
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Movement
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Sensitivity
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Reproduction
Frage 2
Frage
Which statement about enzymes is always correct?
Antworten
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They are made of carbohydrate.
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They work best at high temperatures.
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They speed up chemical reactions.
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They work inside living cells.
Frage 3
Frage
A species of bacterium lives in acidic, hot springs at a temperature of 90 °C.
Which conditions will best suit the enzymes of this bacterium?
Antworten
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30 °C and pH 4
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30 °C and pH 9
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80 °C and pH 4
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80 °C and pH 9
Frage 4
Frage
Which features are found in mammals but not in other vertebrates?
Antworten
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claws and hair
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claws and lungs
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hair and milk
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lungs and milk
Frage 5
Frage
Which cells produce starch in their cytoplasm?
Antworten
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all animal cells
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all plant cells
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some animal cells
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some plant cells
Frage 6
Frage
The binomial name for a tiger is Panthera tigris and for a lion, Panthera leo.
What do these scientific names show?
Lions and tigers:
Antworten
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have many features in common.
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can interbreed.
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are genetically identical.
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are both in the same species
Frage 7
Frage
Which diagram shows the appearance of a plant cell several minutes after it has been placed in a
concentrated solution of sugar?
(0610 June 2009 Paper 1)
Frage 8
Frage
The dots represent molecules of a gas in four tubes at the beginning of an experiment.
In which tube will more molecules move from X to Y than in the opposite direction?
(June 2009 QP 1, Q10)