16 Questions
What type of leaves do the plants in Coniferophyta typically have?
Needle or scale-like
How are the flowers in Coniferophyta plants typically arranged?
In cones or catkins
What characterizes the wood structure of plants in Coniferophyta?
Wood without vessels but with long tracheids
Which feature is typical of the female cones in Coniferophyta plants?
Dry on ripening
What is the first metabolic intermediate formed in the Krebs cycle?
Citric acid
Under what conditions does the citric acid cycle occur?
Aerobic conditions
Which molecules from other cycles and pathways enter the citric acid cycle?
Acetyl CoA
How many enzyme-mediated reactions make up the citric acid cycle?
8
Where does the citric acid cycle take place in eukaryotes?
Mitochondria
Which enzyme of the citric acid cycle is located in the inner mitochondrial membrane in eukaryotic cells?
Succinate dehydrogenase
What is the first step of the citric acid cycle?
Condensation of acetyl CoA with oxaloacetate
Where does the conversion of pyruvate to acetyl CoA occur in eukaryotic cells?
Mitochondrial matrix
Which enzyme is responsible for the reversible hydration of fumarate to form L-malate in the citric acid cycle?
L-malate hydratase
What molecule is formed at the end of each turn of the citric acid cycle and condenses with acetyl CoA in the next cycle?
Oxaloacetate
Which complex in the electron transport chain does FADH2 enter through after transferring electrons to ubiquinone?
Complex II
In the citric acid cycle, which enzyme is responsible for the dehydrogenation of L-malate to oxaloacetate?
L-malate dehydrogenase
Learn about the key characteristics of Coniferophyta, a plant group that includes mostly evergreen trees with needle-like or scale-like leaves. Explore topics such as xerophytic leaf adaptations, wood structure, resin canals, and flower types.
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