STAAR Semester 1 Review

The diagram represents one way an enzyme can be inhibited.

Which statement explains the effect of an inhibitor on an enzyme?

• A substrate will be able to bond with the enzyme

• The enzyme will likely be attacked by immune cells

• The enzyme will be unable to produce more enzymes

• A substrate will be unable to attach to the enzyme

Tags

NGSS.HS-PS1-2

This cell is a -

• PROKARYOTIC

• PLANT

• ANIMAL

• PROTIST

Tags

NGSS.MS-LS1-1

Which statement best describes the different biomolecules and their functions?

• Proteins are the primary source of energy.

• Carbohydrates are a quick, main source of energy while lipids provide long term energy.

• Nucleic Acids include DNA and RNA and insulation and protection.

• Lipids primarily store the genetic code and also provide quick energy.

What are the phases of mitosis in the correct order?

• Prophase, Anaphase, Telophase, Metaphase

• G1, S, G2, M

• Prophase, M phase, Cytokinesis

• Prophase, Metaphase, Anaphase, Telophase,

Tags

NGSS.HS-LS1-4

Which choice correctly matches the genotypes and description (using the allele B)?

• Homozygous dominant: BB

  Homozygous recessive: Bb

  Heterozygous: bb

• Homozygous dominant: bb

  Homozygous recessive: Bb

  Heterozygous: BB

• Homozygous dominant: BB

  Homozygous recessive: bb

  Heterozygous: Bb

• Homozygous dominant: Bb

  homozygous recessive: bb

  Heterozygous: BB

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which table correctly identifies how the plasma membrane contributes to the maintenance of cellular homeostasis?

• 
• 
• 
• 

Tags

NGSS.HS-LS1-3

Which part of the nucleotide codes for our traits?

• sequence of phosphates

• number of sugars

• sequence of nitrogen bases

• deoxyribose

  bonds

Tags

NGSS.HS-LS3-1

NGSS.HS-LS1-1

What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA

• Met-Pro-Ala-Val
• Met-Pro-Val
• Tyr-Gly-His
• Tyr-Gly-Arg-His

Tags

NGSS.HS-LS1-1

Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand: 
GTAGTCA

• UATUAGA
• ACGACTG
• CAUCAGU
• CATCAGT

Each strand of a DNA molecule contains nitrogenous bases that pair with other nitrogenous bases in very specific ways. A diagram of a section of DNA is shown. Which DNA strand is complementary to the one shown above?

• AGU GCU GCG CGU A

• TGT AGC TGC GCG T

• ACA TCG ACG CGC A

• TCG CGC AGC TAC A