Science Competition Final Round

During which portion of interphase is DNA copied

• G₁

• S

• G₂

• anaphase

What happens in G1?

• Growth of:

  organelles

• Growth of:

  cell membrane

  proteins

• Growth: of:

  cell membrane

  organelles

  proteins/enzymes

• Growth of:

  enzymes/proteins

  organelles

Which of the following units are repeatedly joined together to form a strand of DNA?

• amino acids
• nucleotides
• fatty acids
• polysaccharides

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of

• cytosine
• guanine
• thymine
• uracil

Force = Mass x Acceleration

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

Momentum is a ____________________ quantity

• science
• scalar
• vector
• energy

What is the name of this ion: H₃O⁺?

• helium ion
• hydrogen ion
• hepatic ion
• hydronium ion

If an atom loses electrons during a chemical reaction, the atom was:

• Oxidized
• Reduced
• Neutralized
• Precipitated

When a roller coaster is at the top of a hill it has

• high potential energy

• high kinetic energy

• low potential energy

• equal amounts of kinetic and potential energy

What is the rigid outer part of the earth, consisting of the crust and upper mantle?

• Atmosphere

• Asthenosphere

• Lithosphere