Answer the following statements true (T) or false (F)
1. Most biologists would agree that the most important metabolic pathway of living organisms is photosynthesis.
2. The rise of photosynthetic organisms increased the concentration of CO2 in the atmosphere.
3. Grana, thylakoids, and chloroplasts are cellular structures important to the process of photosynthesis.
4. The primary photosynthetic pigment, chlorophyll a, reflects most orange light that reaches it.
5. The light reactions use ATP as their energy source.
1.TRUE
This is because more than 99% of organisms, in most habitats on Earth, rely on the carbon fixation in photosynthesis.
2.FALSE
Photosynthesis would include carbon fixation as part of the carbon reactions.
3.TRUE
These structures are specialized around the membranes and proteins that conduct light and dark reactions.
4.FALSE
The primary pigment is present in largest amounts in the leaves, giving their typical colored appearance.
5.FALSE
The energy source and the major output molecule of the light reactions should be discerned.
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Predict what would happen to the daughter cells if the G1 phase of the parent cell is shortened?
A. The cells would be smaller than normal. B. The cells would be missing chromosomes. C. The cells would not undergo cytokinesis. D. The cells would be larger than normal.
Which of the following is a type of epithelial
tissue that is one layer thick?
a. stratified b. dense connective c. loose connective d. simple e. more than one of these
Cells in this tissue may have cilia
a. A b. B c. C d. D e. E
When the first generation parents are homozygous for different alleles, a 3:1 phenotype ratio will most
likely appear in which generation of offspring? a. P1 b. H1 c. A1 d. F1 e. F2