Biology Honors Test About Photosynthesis
- 1.Energy is required for a variety of life processes including
- A.
Growth and reproduction
- B.
Movement
- C.
Transport of certain materials across cell membranes
- D.
All of the above
- 2.Heterotrophs are organisms that can
- A.
Produce food from inorganic molecules and sunlight
- B.
Survive without energy
- C.
Consume other organisms for energy
- D.
Carry out either photosynthesis or chemosynthesis
- 3.Based on the cycle of photosynthesis and cellular respiration, one can say that the ultimate original source of energy for al living things on Earth is
- A.
Glucose
- B.
Water
- C.
The sun
- D.
Carbon dioxide
- 4.The process whereby plants capture energy and make complex molecules is known as
- A.
Homeostatis
- B.
Evolution
- C.
Photosynthesis
- D.
Development
- 5.Suspended in the fluid stroma of chloroplasts are
- A.
Organelles called eukaryotes
- B.
Numerous mitochondrial membranes
- C.
Small coins that provide energy
- D.
Stacks of thylakoids called grana
- 6.Photosynthesis:oxygen::
- A.
Respiration:darkness
- B.
Light reactions: dark reactions
- C.
Respiration: carbon dioxide
- D.
Oxygen:carbon dioxide
- 7.Biochemical pathway:reaction::
- A.
Barrier:wall
- B.
Match:burn
- C.
Theater:drama
- D.
Assembly line: workers
- 8.Light reaction:thylakoids
- A.
Grana: thylakoids
- B.
Grana:ATP
- C.
Calvin Cycle : stroma
- D.
Stroma: grana of chloroplasts
- 9.The sun is considered the ultimate source of energy for life on Earth because
- A.
All organisms carry out photosynthesis
- B.
All organisms carry out cellular respiration
- C.
Either photosynthetic organisms that have eaten them provide energy for all other organisms on Earth
- D.
The sun heats the Earths atmosphere
- 10.The energy from the sun is converted into chemical energy in the form of organic compounds in a series of linked chemical reactions called a
- A.
Photosynthetic reactant
- B.
ATP generator
- C.
Chemical equation
- D.
Biochemical pathway
- 11.The role of chlorophyll in photosynthesis is to
- A.
Absorb light energy
- B.
Pass electrons to carotenoids
- C.
Split water molecules
- D.
All of the above
- 12.When light strikes an object, the light may be
- A.
Reflected
- B.
Transmitted
- C.
Absorbed
- D.
All of the above
- 13.Chlorophyll is green because
- A.
It absorbs green wavelengths
- B.
It absorbs blue and yellow which makes green
- C.
It reflects green
- D.
Transmits light
- 14.What happens when a chlorophyll molecule absorbs light?
- A.
Some of its electrons are raised to a higher energy level
- B.
It disintegrates, giving off huge amounts of heat
- C.
It glows, radiating green light and giving the plant a green appearance
- D.
It attracts electrons from other molecules
- 15.Chloroplast: grana::
- A.
Photosystem: pigment molecules
- B.
Chlorophyll: pigments
- C.
Thylakoids: photosynthesis
- D.
Chlorophyll: green
- 16.When electrons of a chlorophyll molecule are raised to a higher energy level,
- A.
They become a particle of light
- B.
They form a glucose bond
- C.
They enter an electron transport chain
- D.
They enter the calvin cycle
- 17.NADP is important in photosynthesis because it
- A.
Becomes oxidized to form NADP
- B.
Is needed to form chlorophyll
- C.
Provides additional oxygen atoms
- D.
Provides protons and electrons for some reactions
- 18.The source of oxygen produced during photosynthesis is
- A.
Carbon dioxide
- B.
Water
- C.
Chlorophyll
- D.
Glucose
- 19.The major atmospheric byproduct of photosynthesis is
- A.
Nitorgen
- B.
Carbon dioxide
- C.
Water
- D.
Oxygen
- 20.During the Calvin cycle, carbon-containing molecules are produced from
- A.
Carbon atoms from ATP
- B.
Carbon atoms, hydrogen atoms, and oxygen atoms from glucose
- C.
Carbon atoms from carbon dioxide in the air and hydrogen atoms from water
- D.
Carbon atoms from carbon dioxide int he air and hydrogen atoms from NADPH
- 21.Which of the following process occurs in the thylakoid membrane and converts captured light energy into chemical energy?
- A.
The Calvin cycle
- B.
ATP synthase
- C.
Light absorption
- D.
Chemiosmosis
- 22.Products of the light reactions of photosynthesis that provide energy for the Calvin cycle are
- A.
Oxygen and ATP
- B.
Water and oxygen
- C.
ATP and NADPH
- D.
Oxygen and NADPH
- 23.The Calvin cycle of photosynthesis
- A.
Requires ATP and NADPH
- B.
Can occur in both light and dark conditions
- C.
Generates glucose
- D.
All of the above
- 24.The energy used in the Calvin cycle for the production of carbohydrate molecules comes from
- A.
ATP made during cellular respiration
- B.
The Krebs cycle
- C.
ATP made in the light reactions of photosynthesis
- D.
CO2 absorbed during the last stage of photosynthesis
- 25.All organic molecules contain carbon atoms that ultimately can be traced back in the food chain to
- A.
The bodies of heterotrophs
- B.
Carbon dioxide from the atmosphere
- C.
Water absorbed by plants
- D.
The carbon the comes from the sun
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