Unit 2&3 Exam Review 23

Plant cells have chloroplasts and cell walls where animal cells do not.

What are the two main differences between plant cells and animal cells

• Animal cells have a cell membrane, plants do not.

• Animal cells have mitochondria, plant cells do not.

• Plant cells are eukaryotic, animal cells are not.

• Plant cells have large water filled vacuoles, chloroplasts and a cell wall where animal cells have small food vacuoles, with no cell wall or chloroplasts

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The main difference between a prokaryotic and eukaryotic cell is that eukaryotic cells have (a) __________ and prokaryotic cells do not.

• Cell membrane

• ribosomes

• nucleus

• genetic material

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Both eukaryotic and prokaryotic cells have: _________.

• cell membrane, genetic material, ribosomes

• nucleus, membrane bound organelles

• vacuoles, mitochondria, chloroplasts

• centrioles, golgi apparatus, endoplasmic reticulum

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NGSS.MS-LS1-1

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"Euks have nukes and pro have no nukes". Examples of membrane bound organelles are chloroplasts, mitochondria, endoplasmic reticulum, vacuoles, nucleus and golgi apparatus. All eukaryotic cells have_______ where prokaryotic cells do not.

• Genetic material and ribosomes

• cell membrane and ribosomes

• membrane bound nucleus and amembrane bound organelles

• proteins and lipids

Enzymes work best at an optimum pH and temperature.

According to the graph what is the optimum temperature and pH for this enzyme?

• 20 degrees

  pH of 2

• 35 degrees

  pH of 6

• 45 degrees

  pH of 9

• Data not sufficient

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NGSS.HS-PS1-5

Prokaryotic cells are bacterial cells, they are more simple than eukaryotic cells. Eukaryotic cells are complex with membrane bound organelles including a nucleus.

Which of the following is found in both prokaryotic and eukaryotic cells?

• Mitochondria

  Chloroplasts

  Vacuoles

  Nucleus

• Golgi Apparatus

  Endoplasmic reticulum

  Centrioles

  Vacuoles

• Cell membrane

  Ribosomes

  Genetic material

  cytoplasm

• Chloroplasts

  Cell Wall

  Cell Membrane

  Nucleus

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NGSS.MS-LS1-1

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For an enzyme to be able to work it must have a shape that _________ the _________.

• fits, substrate

• deactivates, substrate

• substrates the deactivator

• equalizes the substrate

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Cell transport, that is, the movement of molecules across the cell membrane, involves homeostasis (i.e. balance in the cell). Notice that the movement of molecules goes from a high concentration to a low concentration here, this is considered passive transport. Active transport would be going from low to high.

What would you call the process that is happening here?

• energy is converted as well as new molecules are formed

• new molecules are formed and ATP is produced

• Active transport is required and homeostasis (balance) is achieved

• Molecules are moved and homeostasis (balance) is achieved

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Cell transport (i.e. the movement of molecules across the cell membrane) involves homeostasis (i.e. balance in the cell). Notice that the movement of molecules goes from a high concentration to a low concentration here, this is considered passive transport. Active transport would be going from low to high.

Which biomolecule is involved during "facilitated diffusion" on the right?

• Carbohydrates

• Proteins

• Lipids

• Nucleic Acids

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NGSS.MS-LS1-2

Which biomolecule would you choose to eat if you needed lots of energy (like preparing for a marathon)?

• Carbohydrates

• Proteins

• Lipids (fats)

• Nucleic Acids