3.3 Cellular Respiration
in AP Biology
Respiration breaks the fuel down, using oxygen and generating ATP. The waste products of this type of respiration, carbon dioxide and water (H2O), are the raw materials for photosynthesis.
3.2 Enzymes
in AP Biology
Enzymes speed up metabolic reactions by lowering energy barriers. Each enzyme has an optimal temperature and pH. Regulation of enzyme activity helps control metabolism.
3.1 Cellular Energy
in AP Biology
The totality of an organism’s chemical reactions is called metabolism. Metabolism is an emergent property of life that arises from orderly interactions between molecules.
2024-25学年AP生物暑假作业——实验视频
优秀视频作业展示：开展一次安全的可实施的生物小实验，拍摄2-3分钟的短视频记录过程
2.7 Origin of Compartmen-talization and the Eukaryotic Cell
in AP Biology
Membranes and membrane-bound organelles in eukaryotic cells compartmentalize intracellular metabolic processes and specific enzymatic reactions.
2024-25学年AP生物暑假作业——海报
优秀海报作业展示：阅读一本自己感兴趣的关于生物相关的书籍（任意角度皆可），并制作一张此书的推荐海报。
2.6 Water Movement: Osmosis, Tonicity, and Osmoregulation
in AP Biology
The diffusion of free water across a selectively permeable membrane, whether artificial or cellular, is called osmosis.
2.5 Membrane Transport
in AP Biology
Passive transport is diffusion of a substance across a membrane with no energy investment. Active transport uses energy to move solutes against their gradients. Bulk transport across the plasma membrane occurs by exocytosis and endocytosis.
2.4 Cell Membranes
in AP Biology
In fluid mosaic model, the membrane is a mosaic of protein molecules bobbing in a fluid bilayer of phospholipids.
2.3 Cell and Organism Size
in AP Biology
The surface-to-volume ratio is an important parameter affecting cell size and shape.