Biology concepts 1-4

ATP is the only molecule that directly powers the body.

• true

• false

Enzymes can ____ bonds in a substrate to form two products

• Enzymes can ​ ____ bonds between substrates to form ​one product

This is an ​ (a)   reaction, it ​ (b)   energy. ​ an example of this is ​ (c)   . (d)   energy in products then reactants.

• exothermic
• endothermic
• less
• releases
• absorbs
• more
• cellular respiration
• photosynthesis

The breaking down & creating of bonds between substances, which requires energy.

• Endothermic reactions

• activation energy

• chemical reactions

• ATP

(substrate) substances that are changed during reaction

• reactants

• products

6CO2 + 6H2O 🡪 C6H12O6 + 6O2

​ (a)  

Energy is ​ (b)   as glucose so its ​ (c)  

• EXOTHERMIC
• stored
• ENDOTHERMIC
• Photosynthesis
• cellular respiration
• released

Enzymes bind to reactants/substrate to break or form bonds and then release a new _______.

Activation energy

• the amount of energy on each side of the chemical reaction

• the amount of energy needed to start a chemical reaction

• endothermic reaction

• breaking down & creating bonds between substances

C6H12O6 + 6O2 🡪 6CO2 + 6H2O

​ (a)  

Energy is ​ (b)   as ATP so its 

​ (c)  

• Cellular Respiration
• photosynthesis
• released
• EXOTHERMIC
• absorbed
• ENDOTHERMIC