Biology 4.B STAAR Released Questions

Which type of movement across a cell's plasma membrane requires energy supplied by ATP?

• Passive Transport

• Simple Diffusion

• Active Transport

• Osmosis

Which statement describes the process of osmosis in an animal cell?

• Sugar molecules move across the plasma membrane until the cell has enough energy to grow in size and divide.

• Water molecules move across the plasma membrane until solute concentrations are equal on both sides of the membrane.

• Ions move across the plasma membrane until the inside of the cell has a higher concentration of positive charges.

• Enzymes move across the plasma membrane until the cell has completed metabolism.

When mammals get an infection, their internal body temperature often rises 2 to 3 degrees Celsius. The body gets the energy it needs to react to an infection by...

• Increasing the rate of cellular division

• Decreasing the rate of glucose movement into the cell

• Increase the rate of cellular respiration in mitochondria

• Decrease the rate at which carbon dioxide is removed from the cell

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Which molecule synthesized by plants is a major source of energy for cellular processes in both plants and animals?

• Wax

• Nucleic Acid

• Glucose

• Chlorophyll

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Which group of organelles is directly responsible for the production of new molecules within a cell?

• Ribosomes, the endoplasmic reticulum, and Golgi apparatuses

• Golgi apparatuses, lysosomes, and the plasma membrane

• The endoplasmic reticulum, plastids, and vacuoles

• The nucleolus, vacuoles, and ribosomes

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Which of these statements best explains the process of energy conversion that takes place in the mitochondria?

• Energy is required for carbon dioxide molecules to form six-carbon sugar molecules

• Water molecules and radiant energy are necessary for anaerobic respiration to take place

• Oxygen molecules release energy in the form of heat during combustion reactions

• The energy in the bonds of glucose molecules in transferred to the phosphate bonds in ATP

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• Nuclei are building amino acids for energy storage

• Ribosomes are building carbohydrates to increase energy output

• Chloroplasts are using energy to produce oxygen

• Mitochondria are using oxygen to produce ATP

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

• 
• 
• 
• 

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• Active transport, because energy is being used to move molecules against the concentration gradient

• Facilitated diffusion, because energy is being used to move molecules with the concentration gradient

• Osmosis, because energy is not being used to move molecules with the concentration gradient

• Endocytosis because energy is not being used to move molecules against the concentration gradient

• DNA

• RNA

• C6H12O6

• ATP

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