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AP Bio Ch 6-12
Question | Answer |
---|---|
Which type of solution, (hypertonic, hypotonic, or isotonic) has a higher concentration compared to another? | Hypertonic. |
If an animal cell were placed in a hypotonic solution, what would happen to the cell? | The animal cell would swell with water and eventually burst if left in that state for too long. |
What is an an example of an active transport? | A sodium-potassium pump. |
Spindle fibers start to form at what organelle in the cell during prophase? | Centrioles. |
Give an example of a diploid cell. | Skin cells (somatic cell). |
What are the three main events of interphase? | G1 phase, S phase, and G2 phase. |
At this checkpoint of the cell cycle, sister chromatids must be attached to the spindle fibers and the microtubules must by attached to all kinetichores before continuing. | M Phase checkpoint. |
What begins to form on an animal cell during cytokinesis before the two new daughter cells pinch off from each other? | Cleavage furrow. |
What forms on a plant cell during cytokinesis? | Cell plate. |
What triggers mitosis in G2? | The accumulation of cyclin molecules in the cell. |
What is the central dogma of biology? | DNA > mRNA > proteins |
Chromatin is defined as what? | Unwound/loose strands of DNA and proteins that contain genetic information. |
What are the two limiting factors of cell size? | 1. Instructions from DNA can only go so far. 2. Surface area to volume ratio. |
These channel proteins facilitate the passage of water molecules trhough the membrane. | Aquaporins. |
Which two proteins help in the process of facilitated diffusion? | Channel and carrier proteins. |