Photosynthesis and cellular respiration are two major processes of carbon cycling in living organisms. Which statement describes one similarity between Photosynthesis and cellular respiration?

both include reactions that transform energy

Molecules needed for protein synthesis

mRNA, tRNA, amino acids, and ATP molecules

Which statement best explains why cellular respiration in plants and other organisms is dependent on photosynthesis?

Because it provides the materials that fuel cellular respiration

Carbon dioxide and oxygen are molecules that can move freely across a plasma membrane. What determines the direction that carbon dioxide and oxygen molecules move?

Concentration gradient across the plasma membrane

Which statement best describes how active transport differs from passive transport?

Only active transport requires ATP

A sodium-potassium pump w/in a cell membrane requires energy to move sodium & potassium ions into or out of a cell. The movement of glucose into or out of a cell doesn't require energy. Which statement describes the movement of these materials across a ce

sodium and potassium ions move by active transport, and glucose moves by facilitated diffusion

Animals can produce potassium ion concentration inside their cells that is 20X greater than that of their environment & is maintained by the plasma membrane. ID the process in the cell membrane that produces this difference in concentration

active transport = protein pump

For the animal example, explain the process that occurs as the cell produced the ion concentration gradient

cellular respiration takes the animal and makes it more habitable to their environment

Compare the process of potassium ion transport to another mechanism that moves material across the plasma membrane

cellular respiration - they both transport energy to the thing that needs it the most

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Hannah - Biology

Keystones - #3 Transport & Bioenergetics

Question	Answer
Using a microscope, a student observes a small, green organelle in a plant cell. Which energy transformation most likely occurs first within the observed organelle?	light to chemical
Plant cells use sunlight to make their own food. Which structure allows plant cells to perform this function?	chloroplast
Photosynthesis and cellular respiration are two major processes of carbon cycling in living organisms. Which statement describes one similarity between Photosynthesis and cellular respiration?	both include reactions that transform energy
A plant cell uses the molecules in the list to synthesize a protein. What role do the ATP molecules play in the protein synthesis process?	They provide energy
Molecules needed for protein synthesis	mRNA, tRNA, amino acids, and ATP molecules
Which statement best explains why cellular respiration in plants and other organisms is dependent on photosynthesis?	Because it provides the materials that fuel cellular respiration
A protein in a cell membrane changed its shape to move sodium and potassium ions against their gradients. Which molecule was most likely used by the protein as an energy source?	ATP
Which component of this membrane contains a hydrophobic region and acts as the primary barrier to mosforeign subtances?	phospholipid bilayer
Carbon dioxide and oxygen are molecules that can move freely across a plasma membrane. What determines the direction that carbon dioxide and oxygen molecules move?	Concentration gradient across the plasma membrane
Which statement best describes how active transport differs from passive transport?	Only active transport requires ATP
A sodium-potassium pump w/in a cell membrane requires energy to move sodium & potassium ions into or out of a cell. The movement of glucose into or out of a cell doesn't require energy. Which statement describes the movement of these materials across a ce	sodium and potassium ions move by active transport, and glucose moves by facilitated diffusion
Animals can produce potassium ion concentration inside their cells that is 20X greater than that of their environment & is maintained by the plasma membrane. ID the process in the cell membrane that produces this difference in concentration	active transport = protein pump
For the animal example, explain the process that occurs as the cell produced the ion concentration gradient	cellular respiration takes the animal and makes it more habitable to their environment
Compare the process of potassium ion transport to another mechanism that moves material across the plasma membrane	cellular respiration - they both transport energy to the thing that needs it the most

Created by: schurmand

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