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Why Are You Alive – Life, Energy & ATP

Tim Horton
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Question 1

Multiple Choice

What does the escalator represent in the analogy used to describe life in the video?

  • The self-replicating processes of cells
  • The laws of physics driving you forward
  • The cell's ability to maintain separation
  • The energy provided by ATP

Question 2

Multiple Choice

What fundamental principle of the universe is described as making life try to avoid becoming boring and dead?

  • Entropy
  • Photosynthesis
  • ATP
  • Mitochondria

Question 3

Multiple Choice

Which molecule is described as the 'energetic building block of life'?

  • Glucose
  • Oxygen
  • Adenosine Triphosphate (ATP)
  • Carbon Dioxide

Question 4

Multiple Choice

What process allows cells to convert sunlight into usable chemical energy?

  • Respiration
  • Photosynthesis
  • Fermentation
  • Glycolysis

Question 5

Multiple Choice

How did the first mitochondria originate according to the video?

  • Through mutation
  • By an explosion of energy
  • By a cell absorbing another cell
  • Through photosynthesis

Question 6

Multiple Choice

What is a key characteristic of ATP that makes it unsuitable for long-term energy storage?

  • It is too large and heavy
  • It has only one percent of a glucose molecule's energy at three times its mass
  • It can't be synthesized quickly
  • It is not biodegradable

Question 7

Multiple Choice

What waste products are produced by mitochondria during ATP production?

  • Oxygen and glucose
  • Water and carbon dioxide
  • Nitrogen and methane
  • Salt and urea

Question 8

Multiple Choice

What major evolutionary event allowed for the development of multicellular life?

  • The invention of ATP
  • The merging of two cells into one
  • The discovery of photosynthesis
  • The formation of glucose

Question 9

Multiple Choice

Why is ATP constantly produced and used up quickly in living organisms?

  • Because it has a short half-life
  • Because it is very unstable
  • Because its energy content is low compared to its mass
  • Because it reacts with other molecules in the cell

Question 10

Multiple Choice

What process do mitochondria use to generate ATP from sugar molecules?

  • Photosynthesis
  • Chemiosmosis
  • Cellular respiration
  • Fermentation

Question 11

Multiple Choice

What is the primary source of energy for early cells before they harnessed the Sun's energy?

  • ATP from other cells
  • Simple chemical reactions
  • Photosynthesis
  • Absorbing photons

Question 12

Multiple Choice

How often do complex, self-replicating processes occur within a cell?

  • Every second
  • Every minute
  • Hundreds of thousands of times every second
  • Millions of times every hour

Question 13

Multiple Choice

Which of the following best describes entropy?

  • A state of maximum energy
  • A principle where the universe tends toward disorder
  • A molecule that stores energy
  • A process of energy production in cells

Question 14

Multiple Choice

What makes ATP uniquely good at accepting and releasing energy?

  • Its large size
  • Its chemical structure
  • Its ability to store large amounts of energy
  • Its high stability

Question 15

Multiple Choice

What did some cells do instead of performing photosynthesis themselves?

  • They stored energy in fat cells
  • They absorbed other cells that did photosynthesis
  • They used chemical reactions for energy
  • They stopped needing energy

Question 16

Multiple Choice

What happens if the process of ATP production is interrupted even for a few minutes?

  • The cell becomes dormant
  • The cell dies
  • The cell produces alternative energy
  • The cell divides

Question 17

Multiple Choice

How much ATP does your body produce and convert daily?

  • About 10 million molecules
  • About your own body weight
  • About 90 thousand molecules
  • About 90 million, billion, billion molecules

Question 18

Multiple Choice

What analogy is used in the video to explain the constant need for ATP production?

  • Driving a car at full speed while producing fuel
  • Running a marathon without stopping
  • Climbing a mountain endlessly
  • Swimming across an ocean

Question 19

Multiple Choice

What major transition allowed cells to form small groups or communities?

  • The discovery of ATP
  • The absorption of other cells
  • The development of photosynthesis
  • The merging of two cells into one

Question 20

Multiple Choice

What is the main reason ATP cannot be stored effectively like sugar in fat cells?

  • It decomposes quickly
  • It is too heavy
  • It has only one percent of a glucose molecule's energy at three times its mass
  • It reacts with other molecules
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