WorksheetsExploring Water and Energy Processes
Total questions: 15
Worksheet time: 8mins
What is the chemical formula for water?
HCl
H 2 O
CO 2
O 2
Which process describes the movement of molecules from an area of high concentration to an area of low concentration.
Diffusion
Photosynthesis
Respiration
Filtration
What is the main pigment involved in photosynthesis?
Hemoglobin
Chlorophyll
Melanin
Keratin
Which molecule is the primary energy carrier produced during cellular respiration?
DNA
ATP
Glucose
NADPH
What is the first stage of cellular respiration?
Krebs cycle
Glycolysis
Electron transport chain
Calvin cycle
Where does cellular respiration take place?
Mitochondria
Chloroplast
Nucleus
Cell Wall
Which factor would most likely increase the rate of diffusion?
Decreasing temperature
Increasing concentration gradient
Decreasing surface area
Increasing molecular size
Why does water have a high surface tension?
Because of its low density
Due to hydrogen bonding between water molecules
Because it is a non-polar molecule
Due to its high temperature
Which of the following best explains the role of NADPH in the light reactions of photosynthesis?
It absorbs sunlight
It carries electrons to the Calvin cycle
It splits water molecules
It produces ATP
During glycolysis, glucose is broken down into which molecule?
Lactic acid
Pyruvate
Acetyl-CoA
Ethanol
Which of the following best describes the relationship between the light reactions and the Calvin cycle in photosynthesis?
The Calvin cycle produces oxygen used in the light reactions
The light reactions provide ATP and NADPH for the Calvin cycle
The Calvin cycle absorbs sunlight for the light reactions
The light reactions use glucose produced by the Calvin cycle
A student observes that sugar dissolves faster in hot water than in cold water. Which reasoning best explains this observation?
Hot water has more sugar molecules
Higher temperature increases the kinetic energy of molecules, speeding up diffusion
Cold water is denser than hot water
Sugar is only soluble in hot water
A scientist blocks the electron transport chain in a cell. What is the most immediate effect on ATP production?
ATP production increases
ATP production stops or decreases significantly
ATP production is unaffected
ATP is produced only in the nucleus
What is this equation for?
Cellular Biography
Cellular Respiration
Photosensitizes
Photosynthesis
This equation represents which process?
photosynthesis
cellular respiration
Calvin cycle
Krebs cycle
