12 Questions
Which of the following is NOT a characteristic of inorganic compounds?
They change when reacting with other chemicals
In chemistry, what is defined as the smallest part of an element that can enter into a chemical reaction?
Atom
What determines an atom's chemical and physical properties?
Arrangement of electrons in the electron cloud
How are elements identified?
By their atomic number
What type of ions does an acid release when dissolved in water?
Protons (H+)
What is the key element in organic molecules that forms the basis of their characteristics?
Carbon
Which type of molecules contain only carbon and hydrogen atoms?
Hydrocarbons
What are simple carbohydrates composed of?
Carbon, Hydrogen, Oxygen
Which of the following best describes the difference in lifespan between plants and animals?
Plants can be annuals or perennials, while animals can have varying lifespans.
In which of the following processes do plants primarily engage for their respiration?
Anaerobic respiration
What is a key characteristic that distinguishes organic compounds from inorganic compounds?
Organic compounds are always naturally occurring, while inorganic compounds are synthetic.
What differentiates animal respiration from plant respiration?
Animals respire aerobically only, while plants can respire anaerobically.
Test your knowledge on photosynthesis, respiration, and the lifespan of plants and animals. Learn about the production of oxygen during photosynthesis and the different ways in which animals respire. Explore the varying lifespans of plants and animals in the ecosystem.
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