In autotrophic bacteria, where are the enzymes located that can carry on organic synthesis?
inner membrane surface of the plasma membrane
In mitochondria, chemiosmosis translocates protons from the matrix into the intermembrane space, whereas in chloroplasts, chemiosmosis translocates protons from
the stroma to the thylakoid space.
How is photosynthesis similar in C4 and CAM plants?
In both cases, rubisco is not used to fix carbon initially.
In mechanism, photophosphorylation is most similar to
oxidative phosphorylation in cellular respiration.
C4 plants differ from C3 and CAM plants in that C4 plants _____.
transfer fixed carbon dioxide to cells in which the Calvin cycle occurs
After chromosomes condense, the ______ is the region where the identical DNA molecules are most tightly attached to each other
The ____________ is a cell structure consising of microtubules, which forms during early mitosis and plays a role in cell division
During interphase, most of the nucleus is filled with a complex of DNA and protein in a dispersed form called
The ________ are the organzing centers for mcrotubules involed in seperatng chromasomes during mitosis
The formation of a cell plate is beginning across the middle of a cell and nuclei are re-forming at opposite ends of the cell. What kind of cell is this?
a plant cell undergoing cytokenesis
During anaphase, the nonkinetochore microtubules __________ and move past each other, and the kinetochore mcrotubules __________
The drug cytochalasin B blocks the function of actin. Which of the following aspects of the cell cycle would be most disrupted by cytochalasin B?
cleavage furrow formation
During prophase a homologous pair of chromosomes consists of _____.
two chromosomes and four chromatids
Through a microscope, you can see a cell plate beginning to develop across the middle of a cell and nuclei re-forming on either side of the cell plate. This cell is most likely
a plant cell during cytokenesis
Referring to a plant sexual life cycle, which of the following terms describes the process that leads directly to the formation of gametes?