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1.1 The study of life Read Online
Viewed from space, Earth offers no clues about the diversity of life forms that reside there. The first forms of life on Earth are thought to have been microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers so familiar to us are all relatively recent, originating 130 to 200 million years ago. Humans have inhabited this planet for only the last 2.5 million years, and only in the last 200,000 years have humans started looking like we do today.
Chapter 8: Photosynthesis
8.1 Overview of Photosynthesis
8.2 The Light-Dependent Reactions of Photosynthesis
8.3 Using Light Energy to Make Organic Molecules
Download MCQ Quiz PDF eBook
Question: What two main products result from photosynthesis?
Choices:
oxygen and carbon dioxide
chlorophyll and oxygen
sugars/carbohydrates and oxygen
sugars/carbohydrates and carbon dioxide
Question: Which complex is not involved in the establishment of conditions for ATP synthesis?
Choices:
photosystem I
ATP synthase
photosystem II
cytochrome complex
Question: Where in eukaryotic cells does the Calvin cycle take place?
Choices:
thylakoid membrane
thylakoid lumen
chloroplast stroma
granum
Question: In which compartment of the plant cell do the light-independent reactions of photosynthesis take place?
Choices:
thylakoid
stroma
outer membrane
mesophyll
Question: Which of the following components is not used by both plants and cyanobacteria to carry out photosynthesis?
Choices:
chloroplasts
chlorophyll
carbon dioxide
water
Question: Which order of molecular conversions is correct for the Calvin cycle?
Choices:
RuBP + G3P → 3-PGA → sugar
RuBisCO → CO2 → RuBP → G3P
RuBP + CO2 → [RuBisCO] 3-PGA → G3P
CO2 → 3-PGA → RuBP → G3P
Question: Which molecule must enter the Calvin cycle continually for the light-independent reactions to take place?
Choices:
RuBisCO
RuBP
3-PGA
CO2
Question: How many photons does it take to fully reduce one molecule of NADP+ to NADPH?
Choices:
1
2
4
8
Question: Which of the following structures is not a component of a photosystem?
Choices:
ATP synthase
antenna molecule
reaction center
primary electron acceptor
Question: From which component of the light-dependent reactions does NADPH form most directly?
Choices:
photosystem II
photosystem I
cytochrome complex
ATP synthase
Question: Which statement about thylakoids in eukaryotes is not correct?
Choices:
Thylakoids are assembled into stacks.
Thylakoids exist as a maze of folded membranes.
The space surrounding thylakoids is called stroma.
Thylakoids contain chlorophyll.
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