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BIO REVIEW – 03 Exam | Questions And Answers Latest {} A+ Graded | 100% Verified
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BIO REVIEW – 03 Exam | Questions And Answers Latest {} A+ Graded | 100% Verified
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BIO REVIEW – 03 Exam | Questions And Answers Latest {2024- 2025} A+ Graded | 100%Verified
What is an atom? - smallest particle of an element that displays its properties.
What is an element? - substances that cannot be broken down into substances with different properties.
What is a compound molecule? - a compound is a molecule containing at least two different elements.
How are compound molecules formed? - mutual sharing of electrons.
What is a nucleotide? - A nucleotide is an organic molecule made up of a nucleotide base, a five-carbon
sugar and at least one phosphate group. Nucleotides make up the basic units of DNA and RNA
molecules.
Why are nucleotides important? - they help store genetic materials such as DNA and RNA
What role do they have in the formation of DNA? - they are the building blocks that hold the genetic
information.
In the Periodic Table what is a group (vertical) - all atoms in a group share the same bindings
characteristics
In the Periodic Table what is a period? - a period is a row and presents elements in order of increasing
atomic number
What is an Isotope? - atoms of the same element that differ in the number of neutrons.
How are Isotopes used in medicine? - when they become radioactive they can used as tracers.
When the electron shell is closer to the nucleus, why is it more stable? - lower energy level
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