Biology Unit 1 Topic 1 Revision

The movement of materials into and out of a cell, usually against a concentration or ionic gradient, and requiring cellular energy occurs via:

• Active transport

• Diffusion

• Osmosis

• Passive Transport

Plant cells can usually be distinguished from animal cells because only plant cells possess:

• Cell walls and mitochondria

• Golgi bodies and central vacuoles

• Cell walls and central vacuoles

• Chromosomes and mitochondria

What is the output of glycolysis?

• 2 ATP and 2 ADP

• 2 pyruvate and 4 ATP

• Coenzyme A

• Glucose and CO₂

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Factors that affect enzyme activity include

• Health and amount of Oxygen

• Size and shape

• Temperature and pH Levels

• Organic and inorganic molecules

Which of the following conclusions can be drawn from this graph?

• The optimum pH of the enzyme is 6.6.
  
• The optimum pH of the enzyme is 5.8
  
• The enzyme’s activity increases as pH increases 5.0 to 9.0
  
• The enzyme’s activity is greater around pH of 8.0 .
  

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NGSS.MS-PS1-2

Based on the graph, what is the optimal temperature for this enzyme? 

• 15^oC
• 40^oC
• 30^oC
• 35^oC

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NGSS.HS-PS1-5

The process by which light energy is converted into chemical energy is called

• chemosynthesis

• photosynthesis

• respiration

• metabolism

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NGSS.HS-LS1-5

NGSS.HS-LS2-5

Break down (digest) worn out cell parts; mostly in animal cells

• Centrioles

• Lysosomes

• Mitochondria

• Vacuoles

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NGSS.MS-LS1-2

What is the SURFACE AREA of this cube which has a height of 3 cm?

• 64 cm²

• 54 cm²

• 36 cm²

• 27 cm²

How does the Surface Area to Volume ratio change as the size of the cell increases?

• It increases

• it decreases

• it remains the same

• it is not affected by cell size