Unit 1 Review (Physical Science)

What is the Atomic Number for the element below? (2.0)

• 53
• 126.905
• 127
• 74

Why do atoms typically want to bond with other atoms?

• A) To gain or lose electrons
• B) To achieve a full outer shell of electrons
• C) To become more electronegative
• D) To increase their atomic mass

Based on the chemical formula CO₂, what type of bond is present in carbon dioxide?

• A) Ionic
• B) Covalent

Photosynthesis is an example of what type of chemical reaction?

• Exothermic
• Endothermic

Cellular respiration is an example of what type of chemical reaction?

• Exothermic
• Endothermic

What is shown in part A? Use the word bank: ATP, carbon dioxide, oxygen, chlorophyll, light energy, water, glucose, mitochondria

What is shown in part B? Use the word bank: ATP, carbon dioxide, oxygen, chlorophyll, light energy, water, glucose, mitochondria

What is shown in part C? Use the word bank: ATP, carbon dioxide, oxygen, chlorophyll, light energy, water, glucose, mitochondria

What is shown in part D? Use the word bank: ATP, carbon dioxide, oxygen, chlorophyll, light energy, water, glucose, mitochondria

What is shown in part E? Use the word bank: ATP, carbon dioxide, oxygen, chlorophyll, light energy, water, glucose, mitochondria