Scientific Method
atoms with a positive or negative charge are termed ______________.
ions
Anton Van Leeuwenhoek
What stages are in interphase?
G1,S, G2
What is ATP composed of?
Adenine, sugar and 3 phosphate groups
How is a conclusion formed?
the analysis of the experiment
What is located inside the atoms nucleus?
protons and neutrons
The organisms with the simplest cells are called ____________________.
prokaryotes
The bases of DNA are held together by ____________ bonds.
Hydrogen bonds
What do the terms kinetic and potential energy mean?
potential is energy of position
experimentation
protons +, electrons - and neutrons no charge
Why is DNA considered to be semiconservative?
It has 1 new strand and 1 old strand. One serves as a template
What are the building blocks of DNA?
nucleotides
What does the term homeostasis mean?
What does the word metabolism mean?
homeostasis- living things maintain a stable internal condition.
metabolism- the using and transforming energy.
What is the difference in a hypothesis and theory?
hypothesis is an educated guess of why something happens, a theory has been tested and supported many times.
When electrons are shared ______________ bonds form.
covalent
Which 2 scientists are credited with discovering the structure of DNA?
James Watson and Francis Crick
The process of bringing amino acids into position along the mRNA and building a polypeptide is called
translation
What does the first law of thermodynamics state?
energy can be changed from one form to another, but cannot be created or destroyed.
What is the order of the scientific method?
Observation, hypothesis, predictions, testing
How do you find the mass number of an atom?
protons plus neutrons
bringing amino acids to the correct positions along mRNA
How are DNA and RNA the same and different?
DNA has deoxyribose, RNA has ribose
DNA is double stranded, RNA is single stranded
DNA has thymine and RNA has uracil
What is the correct order of mitosis?
What separates in meiosis 1 and meiosis 2?
prophase, metaphase, anaphase, telophase
1. homologous chromosomes
2. sister chromatids