生物化学_TCA
19.TCA
basic
图
图
TCA gives -2H2O +GTP +FADH2 +2CO2 +3NADH + 3H+
第0步 +CO2 +NADH +H+
Combining glycolysis and the TCA cycle gives
注意一个glycose进行一次glycolysis和两次TCA
理论上 1 * glycose → 38 * ATP
All six carbons of glucose are released as CO2
4 molecules of ATP are formed in substrate-level phosphorylation
glycolysis + TCA 产生了 10 * NADH 与 2 * FADH2
in electron transport and oxidative phosphorylation
NADH → 3 ATP
FADH2 → 2 ATP
但是细胞质基质产生的NADH不一定进入电子传递链
steps
step0 - Oxidative Decarboxylati ...
生物化学_Thermodynamics of Biological Systems
3.Thermodynamics of Biological Systems
Basic Thermodynamic Concepts
系统
分为三类
Living things are typically open systems that exchange matter (nutrients and waste products) and energy (heat from metabolism) with their surroundings.
The Second Law and Entropy
entropy, S, which is a measure of disorder and randomness in the system (or the surroundings)
An organized or ordered state is a low-entropy state, whereas a disordered state is a high-entropy state.
When a thermodynamic system undergoes a ...
生物化学_enzyme
131415.enzyme
Kinetics and Specificity
features
catalytic power 催化能力
Enzymes display enormous catalytic power, accelerating reaction rates as much as 10^6 over uncatalyzed levels
enzymes accomplish these astounding feats in dilute缓冲 aqueous solutions under mild conditions of temperature and pH
The relative catalytic power of an enzyme is defined as the ratio of the catalyzed rate to the uncatalyzed rate of reaction
specificity 特异性
A given enzyme is very specific, both in the substrates 底物 , r ...
生物化学_lipids
8.lipids
基础
Lipids are a class of biological molecules defined by low solubility in water and high solubility in nonpolar solvents. 脂质是一类生物分子,其定义为在水中溶解度低,而在非极性溶剂中溶解度高
As molecules that are largely hydrocarbon 烃 in nature, lipids represent highly reduced forms of carbon and,upon oxidation in metabolism, yield large amounts of energy. 由于脂质本质上多为烃类分子,属于碳的高度还原形式,因此在代谢过程中发生氧化时,会产生大量能量
Lipids are thus the molecules of choice for metabolic energy storage.
The lipids found in biological systems are ei ...
生物化学_酶名称总结
0.酶名称总结
kinase 激酶, 从ATP中转移phosphate给底物A
phosphatase 磷酸酶, 磷酸酶是催化将底物A-phosphate变成A和磷酸的分解过程, 与kinase作用相反
phosphorylase 磷酸化酶, 作用机理类似水解酶,可以将A-B化合物分解为AOH和B-phosphate, 可以无机酸磷酸作为磷酸基团供体
isomerase 异构酶
aldolase 醛缩酶, 一种裂解酶
dehydrogenase 脱氢酶, 催化氧化还原, A + NAD⁺/NADP⁺ → A + NADH/NADPH + H⁺
mutase 变位酶, applied to enzymes that catalyze migration of a functional group within a substrate molecule
enolase 烯醇酶
lipase 脂肪酶
carboxylase 羧化酶,底物 + CO₂ + ATP → 羧化产物 + ADP + Pi
carboxykinase 羧化激酶,糖异生,草酰乙酸 + GTP → 磷酸烯醇式丙酮酸 + ...
生理学_介绍
介绍
Cells → Tissues → Organs → Systems
Tissues
epithelial tissue
muscle tissue
nerve tissue
connective tissue
About 60% of the adult human body is fluid
intracellular fluid
2/3 of this fluid is inside the cells
extracellular fluid
1/3 is outside the cells
namely the internal environment
Homeostasis内稳态
maintenance of a nearly constant internal environment
(pH, temp., osmotic pressure, ions and etc.)
Regulation of body functions
Neural regulation
the nervous system regulates body functio ...
生理学_呼吸系统
呼吸系统
Anatomy of the respiratory system
图
The upper respiratory tract
nose, nasal cavity, pharynx
鼻子、鼻腔、咽部
The lower respiratory tract
larynx, trachea, bronchi, lungs
喉、气管、支气管、肺
Lungs
The right lung has 3 lobes,the left lung has 2 lobes
Pleura胸膜
Pleura = visceral pleura (胸膜脏层) + parietal pleura (胸膜壁层)
The visceral pleura covers the surface of the lung and extends into the fissures裂缝 between lobes
The parietal pleura adheres附着 to the mediastinum (纵隔), the rib cage and the diaphragm ...
生理学_循环系统
上半
Anatomy of the heart 心脏解剖学
location & size
The heart lies between the two lungs, just above the diaphragm隔膜
From child to adult, the heart is roughly the same size as the fist
weight about 300g
The pericardium心包 and heart wall peri- 外围的
图
The heart is enclosed in a double-walled sac called the pericardium
The pericardium protects the heart, and allows it to beat with minimal friction
The heart wall consists of 3 layers: epicardium (心外膜), myocardium (心肌层) and endocardium (心内膜)
The m ...
生理学_神经系统
上篇:Overview
Organization of the nervous system
central nervous system
brain
cerebrum
cerebellum
brainstem
Brainstem (脑干) = midbrain (中脑) + pons (脑桥) + medulla (延髓)
spinal cord
peripheral nervous system
12 pairs of cranial颅 nerves
31 pairs of spinal脊髓 nerves
ENS enteric肠 nervous system 叫system表示可以独立工作,有反射弧
sensory receptors
functions→sensory (input),integrative (process),motor (output
Histology of nervous tissue
neurons
结构
cell body (胞体)
inside the CNS, nucleus (核) 在中枢神经系统中叫神 ...
生理学_细胞功能
细胞功能
Transmembrane transport
Passive transport
Simple diffusion
non-polar (lipid-soluble) molecules / small polar molecules without charges
high → low
不消耗ATP
Facilitated diffusion
lipid-insoluble molecules
high → low
不消耗ATP
channels
4 type
Voltage-gated ion channel
Ligand-gated ion channel
Mechanically-gated ion channel
Water channel- aquaporin
2 property
ion selectivity
gating
carriers
conformational change
saturation
Active transport
Primary active transport
Consume ...
