Week 6 and 7 quiz

A chemical reaction that requires energy input is called ________.

• catalytic
• spontaneous
• endergonic

• exergonic

Tags

NGSS.HS-PS1-4

During an oxidation-reduction reaction, "oxidation" means a molecule ________.

• gains electrons and loses energy

• loses electrons and loses energy

• gains electrons and gains energy

• loses electrons and gains energy

Breaking apart a glucose molecule can be used to make ATP because glucose has...

• kinetic energy in its carbon atoms

• heat energy in its protons

• reduction energy in its ring structure

• chemical energy in its bonds

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

Which of the following is true about "autotrophs"? (Select all that apply.)

• They can make their own food

• They don't need to use cellular respiration to make ATP

• They are often photosynthetic

• They have to eat food to obtain energy

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The electron transport chain in cellular respiration is important because it allows the cell to directly transfer the energy in electrons to the energy contained in ________.

• a hydrogen ion gradient

• glucose

• NADH

• pyruvate

• CO₂

Tags

NGSS.HS-LS1-7

Which of the following is/are inputs (reactants) of cellular respiration? (mark all that apply)

• oxygen

• water
• carbon dioxide
• ATP

• glucose

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Which step of cellular respiration generates the most NADH?

• Glycolysis

• Citric acid cycle

• Electron transport chain

• Fermentation

The hydrogen ion gradient that is formed during the electron transport chain of cellular respiration can be used to make ATP because _______.

• hydrogen ions bond to ADP, priming it to accept the phosphate group that CO₂ releases 

• concentrated hydrogen ions cause acidic conditions, which are ideal for ATP synthesis

• hydrogen ions power ATP synthase as they move down their concentration gradient

Tags

NGSS.HS-LS1-7

Where in the cell does glycolysis occur?

• Cytoplasm

• Inside the mitochondria

• Membrane of the mitochondria

• Cell membrane

What is the main function of fermentation?

• To make ethanol

• To make lactic acid

• To make NAD+

• To make oxygen

Tags

NGSS.HS-LS2-3