Biology STAAR Review (Cat 1 - 3)

Which biomolecule is responsible for insulation and long-term energy storage?

• Protein

• Nucleic Acid

• Lipid

• Carbohydrate

1. What organelle is responsible for letting things in and out of the cell?

• Cell membrane

• Mitochondria

• Chloroplast

• Nucleus

What organelle controls the functions within the cell (similar to the brain)? This organelle stores DNA!

• Lysosome

• Nucleus

• Nucleolus

• Chromosomes

What do viruses and living cells have in common?

• Nucleic Acids (DNA and RNA)

• Chloroplasts

• Ribosomes

• Cell Membrane

Identify the Cell Cycle Stage.

• Anaphase
• Cytokinesis
• Telophase
• Metaphase

Which cell part is present in eukaryotic cells, but not in prokaryotic cells?

• cell membrane
• cell wall
• cytoplasm
• nucleus

Which of the following is a possible result of a disruption in the cell cycle?

• cancer
• photosynthesis
• cellular respiration
• protein synthesis

The diagram shows the base sequence of a strand of DNA.
From left to right, what is the sequence of the complementary strand of DNA in this molecule?

• T G A A C
• A C T  T G
• T G U U C
• U C T T G

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogen base
• sugar, oxygen, nitrogen base
• sugar, phosphate, nitrogen base
• sugar, phosphate, protein

If the dominant allele (B) represents brown hair and the recessive allele (b) represents blonde hair, which offspring represents a homozygous recessive genotype?

• BB
• Bb
• blonde
• bb