Which of the following statements is true?
Plants don't use respiration to create energy.
Animals create energy using photosynthesis.
The atmosphere provides plants with carbon dioxide for photosynthesis.
The atmosphere provides animals with carbon dioxide for respiration.

Food contains a sugar called ( ), which is broken down in a process called cellular ( ). this process uses ( ) to break down food molecules and provide energy for cells. fill in the parentheses

If an organ has six haploid chromosomes,how many chromosomes are present. 6 12

1. an enzyme is considered a(n) because it speeds up a chemical reaction without being used up.2. in a catalyzed reaction, a reactant is often called a(n) . an enzyme is specific because the shape of its matches only particular reactants.4. an enzyme speeds up reactions by lowering the . the between an active site and its substrate often strains bonds and the reaction proceed.6. a( , which is often a vitamin, binds to an enzyme and plays a role in catalysis.7. high temperatures or changes in ph can an enzyme, causing it to lose its shape and biological activity.