Do Now - Quiz Prep

In RNA, uracil (U) pairs with _______ instead of _______.

• Adenine (A)

  Thymine (T)

• Adenine (A)

  Cytosine (C)

• Thymine (T)

  Adenine (A)

• Cytosine (C)

  Thymine(T)

Photosynthesis makes _________ as a by-product.

• Water

• Oxygen

• Glucose

• Carbon dioxide

Cellular Respiration uses _________ as a source of energy.

• Water

• Carbon Dioxide

• Glucose

What is the source of chemical energy in cellular respiration?

• Glucose

• Water

• Light

• Carbon dioxide

Read the question carefully and select the correct response.

• A

• B

• C

• D

Enzymes are catalysts that ________ reactions by _______ the activation energy.

• speed up

  increasing

• speed up

  lowering

• slow down

  increasing

• slow down

  lowering

Reorder the following which relates to how enzymes work.

• Substrate binds to the active site

• Enzyme works on the substrate, for example, by digesting food

• An enzyme-substrate complex forms

• Enzyme can be reused

• Products are released from the active site

Read the question carefully and select the correct response.

• F

• G

• H

• J

What is the structure labeled A?

• Enzyme

• Substrate

• Active Site

What is the structure labeled C?

• Enzyme

• Substrate

• Active Site