Units 1-3 Warmup Review (2024)

Waxes create a waterproof layer on the outside of some living organisms. To which group of organic molecules do waxes belong? (Unit 1)

• nucleic acids
• lipids
• proteins
• carbohydrates

Salivary amylase is an enzyme in humans that breaks down starches. What substance would humans have difficulty digesting without this enzyme?  (Unit 1)

• Cellulose
• Protein
• carbohydrates

• Lipids

  Which best summarizes the role of DNA in the production of proteins? (Unit 1)   

• DNA moves to the cytoplasm to build proteins.

• DNA transports amino acids to the ribosomes to make proteins.

• DNA contains the instructions used to make proteins.

• DNA breaks hydrogen bonds between amino acids.

Tags

NGSS.HS-LS1-1

  Which molecules are joined together to make proteins? (Unit 1)  

• Glucose
• Fatty acids
• Nucleotides
• Amino acids

Tags

NGSS.HS-LS1-1

  Which best explains why the rate of a biochemical reaction decreases at high temperatures? (Unit 1)  

• Activation of enzymes at high temperatures
• Increase in enzyme-substrate complex formation
• Denaturation of enzymes at high temperatures
• Enhanced enzyme stability at high temperatures

Which is a primary function of a vacuole in a cell? (Unit 2)

• Store substances
• Regulate cell division
• Transport proteins
• Generate energy

  Plant cells are able to produce their own food. This process happens in which structure?

• Mitochondria
• Chloroplasts
• Endoplasmic reticulum
• Nucleus

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

  What do both prokaryotic and eukaryotic cells contain? (Unit 2)  

• membrane bound organelles

• linear chromosomes

• cytoplasm

• a nucleus

  Which statement best explains how sweating during exercise maintains homeostasis? (Unit 2)  

• It regulates mineral concentrations in cells.

• It regulates body temperature.

• It maintains water balance.

• It maintains sugar balance in cells.

Tags

NGSS.HS-LS1-3

A student noticed that the freshwater plant, Elodea, produced bubbles when placed in direct light. What could the student most likely conclude? (Unit 3)

• Bubbles of carbon dioxide were produced as a result of photosynthesis.

• Bubbles of oxygen were produced as a result of photosynthesis.

• Bubbles of carbon dioxide were produced as a result of cellular respiration.

• Bubbles of oxygen were produced as a result of cellular respiration.

Tags

NGSS.HS-LS1-5