bi test 3 exaple assignments
what is the correct order of light dependent reactions in photosynthesis
-Light enters the chloroplast. -The water molecule is split. -Oxygen is released as waste. -Electrons are transported from PSII to PSI. -ATP and NADPH are produced.
During the final stage of the cell cycle, cytokinesis allows the cell to finish dividing, creating----with---- copies of dna
2 cell identical
Photosynthesis converts light energy to chemical energy. Which molecules are the end product of this transformation of energy in this reaction? ADP and NADPH ADP and NADP+ ATP and NADPH ATP and NADP+
ATP and NADPH
Homologous chromosomes are separated.
Anaphase 1
Explain the relationship between crossing over and genetic variation.
Crossing over is the process by which genetic material is exchanged by non-sister chromatids during meiosis. Genetic recombination allows for a variation in genetic material that is passed through the generations.
Explain how independent assortment occurs in cells and explain its importance.
Independent assortment occurs in cells during meiosis, which is a type of cell division. it is important because it is how genetic variation occurs.
Which change will correct this model of the electron transport chain? Switch NAPH and 32 ATP. Switch FADH and 32 ATP. Switch H2O and O2. Switch NAPH and O2.
Switch H2O and O2.
What is the end result of mitosis? one cell with two identical copies of DNA two cells with different copies of DNA one cell with two different copies of DNA
a
A scientist notices an increase in the glucose production in the plants he is studying. What are the possible reasons?
The plant was exposed to more intense light. The plant absorbed more carbon dioxide
Which processes require oxygen? Check all that apply. conversion of pyruvic acid to Acetyl CoA conversion of pyruvic acid to lactic acid conversion of pyruvic acid to alcohol production of carbon dioxide in the citric acid cycle production of water in the electron transport chain production of pyruvic acid in glycolysis
a and E
What are the missing products in this model? Check all that apply. 2 ATP 4 ATP 2 pyruvic acid 2 NAD+ CO2
a and c
Check the statements about light-independent reactions in photosynthesis that are true. Light-independent reactions requires carbon dioxide (CO2). Light-independent reactions occur in the thylakoid membrane. Light-independent reactions involve the splitting of water molecules. Light-independent reactions produce carbohydrates.
a and d
Which statements accurately describe anaerobic cellular respiration? Check all that apply. Oxygen is present during this process. Cells may convert pyruvic acid to lactic acid. NAD+ is converted to NADH. Cells may convert pyruvic acid to carbon dioxide and lactic acid. Additional ATP is produced after glycolysis.
a and d
Which processes require oxygen? Check all that apply. conversion of pyruvic acid to Acetyl CoA conversion of pyruvic acid to lactic acid conversion of pyruvic acid to alcohol production of carbon dioxide in the citric acid cycle production of water in the electron transport chain production of pyruvic acid in glycolysis
a and e
Which model represents the intermediate step between glycolysis and the citric acid cycle?
a o2 in co2 out
Although cellular respiration involves many steps, the whole process can be represented by a single equation. A + B → C + D + E Which substances would complete the equation that models the overall process of cellular respiration? A: B: C: D: E:
a-glucose B: oxygen c-carbon dioxide d-water e-ATP
Sister chromatids separate and move to opposite sides of the cell.
anaphase
Sister chromatids are pulled apart.
anaphase 2
mmitosis
asexual
two daughter cells
asexual
What would happen if the electron transport system in the light-dependent reaction of photosynthesis was disabled for some reason?
electrons from PSII would not be transferred to PSI. Ferredoxin would then have no electrons to transfer
Label the main steps in the cellular respiration model.
glycolosis electron transport chain citric acid cycle
Sister chromatids line up along the middle of the cell.
metaphase
The centrosome replicates.
metaphase 1
Chromosomes are lined up by spindle fibers.
metaphase 2
Chromatin condenses into chromosomes, and spindles begin to form.
prophase
Homologous chromosome are paired.
prophase 1
Centromeres move toward the poles of the cell.
prophase 2
fertilization
sexual
four daughter cells
sexual
genetic variation
sexual
meiosis
sexual reproduction
Chromosomes disperse and are no longer visible.
telophase
Nuclear envelopes form around separated chromosomes.
telophase 1
Nuclear envelope forms around each set of DNA.
telophase 2
