Biology Regents Review #1

What is the basic subunit that makes up DNA?

• Amino acid

• Nucleotide

• Fatty acid

• Monosaccharide

Tags

NGSS.HS-LS1-1

Which organelle is primarily responsible for protein synthesis in a cell?

• Mitochondrion

• Ribosome

• Lysosome

• Golgi apparatus

Tags

NGSS.HS-LS1-1

What is the main function of the circulatory system in multicellular organisms?

• Producing hormones

• Transporting nutrients and oxygen

• Breaking down food

• Sending electrical signals

Tags

NGSS.HS-LS1-2

Which of the following best describes homeostasis?

• The process of cell division

• The maintenance of a stable internal environment

• The breakdown of glucose

• The movement of water across a membrane

Tags

NGSS.HS-LS1-3

What is the result of mitosis in a human cell?

• Four genetically different cells

• Two identical daughter cells

• One cell with double the DNA

• Two cells with half the DNA

Tags

NGSS.HS-LS1-4

Which base pairs with adenine in DNA?

• Guanine

• Thymine

• Cytosine

• Uracil

Tags

NGSS.HS-LS1-1

Which system is responsible for removing waste products from the blood in humans?

• Digestive system

• Excretory system

• Respiratory system

• Nervous system

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NGSS.HS-LS1-2

Which feedback mechanism increases the original stimulus?

• Negative feedback

• Positive feedback

• Neutral feedback

• Inhibitory feedback

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NGSS.HS-LS1-3

What is the primary purpose of cellular differentiation?

• To produce energy

• To create specialized cells for specific functions

• To break down nutrients

• To remove waste

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NGSS.HS-LS1-4

Which molecule carries the genetic code from DNA to the ribosome for protein synthesis?

• tRNA

• mRNA

• rRNA

• DNA polymerase

Tags

NGSS.HS-LS1-1