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大香蕉综合伊人91新人

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JoVE Core

Cell Biology

Video textbook for undergraduate courses: Visualized concepts and experiments

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43 Chapters

550+ Videos

4,050+ Multiple Choice Questions

Table of Contents

Chapter 1

Cells, Genomes, and Evolution

15 Videos

26 Minutes

1:15

What are Cells?

32.9K views

The Tree of Life – Bacteria, Archaea, and Eukaryotes

2:40

The Tree of Life – Bacteria, Archaea, and Eukaryotes

14.7K views

1:28

Prokaryotic Cells

36.2K views

1:37

Eukaryotic Compartmentalization

11.8K views

1:24

Eukaryotic Evolution

35.5K views

1:30

Animal and Plant Cell Structure

30.6K views

1:24

Cytoplasm

5.9K views

1:25

The Nucleus

4.8K views

1:07

The DNA Helix

21.1K views

1:20

The Central Dogma

23.4K views

1:35

Mutations

39.4K views

Genome Size and the Evolution of New Genes

3:21

Genome Size and the Evolution of New Genes

2.5K views

1:57

Gene Families

2.6K views

2:05

Gene Evolution – Fast or Slow?

2.9K views

Types of Genetic Transfer Between Organisms

2:18

Types of Genetic Transfer Between Organisms

5.4K views

Chapter 2

Biochemistry of the Cell

12 Videos

29 Minutes

The Periodic Table and Organismal Elements

1:27

The Periodic Table and Organismal Elements

18.8K views

2:45

Functional Groups

21.8K views

2:37

Types of Chemical Bonds

21.1K views

2:35

Noncovalent Attractions in Biomolecules

18K views

2:34

Polymers

21.1K views

1:31

What are Lipids?

7.7K views

3:38

Structure of Lipids

10.9K views

3:25

Chemistry of Carbohydrates

8.8K views

2:43

Nucleic Acids

7.7K views

2:15

Protein and Protein Structures

10.7K views

1:28

pH Regulation in Cells

6.3K views

2:58

Chemistry of the Cell

7K views

Chapter 3

Energy and Catalysis

22 Videos

30 Minutes

1:13

The First Law of Thermodynamics

6.1K views

1:14

The Second Law of Thermodynamics

5.5K views

1:18

Enthalpy within the Cell

6.1K views

1:22

Entropy within the Cell

11K views

1:05

An Introduction to Free Energy

8.7K views

Endergonic and Exergonic Reactions in the Cell

1:27

Endergonic and Exergonic Reactions in the Cell

15.5K views

The Equilibrium Binding Constant and Binding Strength

2:18

The Equilibrium Binding Constant and Binding Strength

9.2K views

0:55

Free Energy and Equilibrium

6.5K views

1:16

Non-equilibrium in the Cell

4.7K views

Oxidation and Reduction of Organic Molecules

1:19

Oxidation and Reduction of Organic Molecules

7.1K views

1:22

Introduction to Enzymes

19.1K views

1:13

Enzymes and Activation Energy

12.2K views

1:19

Introduction to Enzyme Kinetics

20.4K views

Turnover Number and Catalytic Efficiency

1:19

Turnover Number and Catalytic Efficiency

10.4K views

1:07

Catalytically Perfect Enzymes

4.1K views

Introduction to Mechanisms of Enzyme Catalysis

1:13

Introduction to Mechanisms of Enzyme Catalysis

8.4K views

0:49

Ligand Binding and Linkage

3.2K views

1:58

Cooperative Allosteric Transitions

2.6K views

2:47

Ribozymes

2.7K views

1:31

ATP Energy Storage and Release

10.7K views

1:28

ATP and Macromolecule Synthesis

5.8K views

1:17

Coupled Reactions

8K views

Chapter 4

Introduction to Metabolism

12 Videos

16 Minutes

1:40

Overview of Metabolism

31.7K views

1:36

Carbohydrate Metabolism

11.4K views

1:21

Glycolysis: Preparatory Phase

13.9K views

1:25

Glycolysis: Pay-off Phase

10.2K views

1:20

Fates of Pyruvate

8.8K views

Role of Reduced Coenzymes NADH and FADH₂

1:29

Role of Reduced Coenzymes NADH and FADH₂

12.2K views

1:20

Overview of Nitrogen Metabolism

8.4K views

1:28

Overview of Fatty Acid Metabolism

31.2K views

1:10

Sugars as Energy Storage Molecules

8.7K views

1:06

Fats as Energy Storage Molecules

25.6K views

1:19

Regulation of Metabolism

9.8K views

1:18

Positive and Negative Feedback Loops

19.8K views

Chapter 5

Protein Structure

10 Videos

22 Minutes

1:28

What are Proteins?

15.1K views

1:24

Protein Organization

6.8K views

1:25

Protein Folding

8.3K views

2:47

Protein Families

3.4K views

2:26

Conservation of Protein Domains

3.2K views

2:21

Globular and Fibrous Proteins

4.2K views

2:18

Intrinsically Disordered Proteins

2.4K views

2:41

Protein Complex Assembly

2.1K views

2:50

Conjugated Proteins

2.7K views

3:03

Amyloid Fibrils

5.5K views

Chapter 6

Protein Function

12 Videos

25 Minutes

2:40

Ligand Binding Sites

7.8K views

2:04

Protein-Protein Interfaces

3.8K views

1:49

Conserved Binding Sites

1.7K views

1:24

Cofactors and Coenzymes

11.2K views

1:58

Cooperative Allosteric Transitions

2.3K views

2:54

Protein Kinases and Phosphatases

3.9K views

2:14

GTPases and their Regulation

2.3K views

2:04

Covalently Linked Protein Regulators

1.7K views

Protein Complexes with Interchangeable Parts

1:57

Protein Complexes with Interchangeable Parts

1.9K views

1:58

Mechanical Protein Function

2.1K views

1:56

Structural Protein Function

2.8K views

2:26

Protein Networks

2.4K views

Chapter 7

Structure and Organization of DNA

10 Videos

21 Minutes

2:05

DNA as a Genetic Template

6.9K views

1:30

Structure of a Gene

12.8K views

2:40

Chromosome Structure

4.9K views

2:33

The Nucleosome

3.6K views

2:21

Chromatin Packaging

8.4K views

1:01

Euchromatin

2.9K views

2:38

Heterochromatin

3.7K views

2:32

Histone Modification

3.5K views

1:51

Lampbrush Chromosomes

2.5K views

2:04

Polytene Chromosomes

3.1K views

Chapter 8

DNA Replication and Repair

17 Videos

34 Minutes

2:27

Base-pairing and DNA Repair

64.9K views

1:02

The DNA Replication Fork

15.7K views

1:59

Lagging Strand Synthesis

13.8K views

3:01

The Replisome

6.9K views

1:31

Proofreading

6.5K views

1:32

Replication in Prokaryotes

25.2K views

1:29

Replication in Eukaryotes

14.2K views

2:41

Telomeres and Telomerase

5.3K views

2:25

Overview of DNA Repair

7.7K views

1:54

Base Excision Repair

3.9K views

1:38

Nucleotide Excision Repair

3.7K views

1:20

Mismatch Repair

5.1K views

2:04

Fixing Double-strand Breaks

3.3K views

2:31

Homologous Recombination

4.8K views

2:08

Gene Conversion

2.4K views

2:37

DNA Damage Can Stall the Cell Cycle

2.7K views

2:37

Restarting Stalled Replication Forks

2K views

Chapter 9

Transcription: DNA to RNA

18 Videos

35 Minutes

1:36

What is Gene Expression?

8.9K views

1:19

RNA Structure

5K views

1:20

Types of RNA

6.1K views

1:17

Transcription

23.8K views

0:43

Bacterial RNA Polymerase

8.8K views

0:58

Eukaryotic RNA Polymerases

6.8K views

1:30

General Transcription Factors

5.5K views

2:36

RNA Polymerase II Accessory Proteins

3.2K views

2:35

Transcription Elongation Factors

3.8K views

Pre-mRNA Processing: Modification of pre-mRNA Ends

1:35

Pre-mRNA Processing: Modification of pre-mRNA Ends

9.7K views

1:32

Pre-mRNA Processing: RNA Splicing

5.4K views

2:41

Chromatin Structure and RNA Splicing

2.8K views

2:18

Alternative RNA Splicing

3.9K views

2:31

Nuclear Export of mRNA

4.6K views

2:36

Transfer RNA Synthesis

2.9K views

2:53

Ribosomal RNA Synthesis

3.3K views

2:55

The Nucleolus

4.1K views

2:10

Additional Subnuclear Structures

2.2K views

Chapter 10

Translation: RNA to Protein

11 Videos

24 Minutes

1:31

Translation

15.2K views

1:27

Ribosomes

7.9K views

2:26

tRNA Activation

6.9K views

2:33

Initiation of Translation

6.6K views

1:44

Termination of Translation

5.6K views

2:07

Improving Translational Accuracy

2.7K views

2:27

Nonsense-mediated mRNA Decay

2.9K views

Molecular Chaperones and Protein Folding

3:00

Molecular Chaperones and Protein Folding

13.2K views

2:18

The Proteasome

3.5K views

2:58

Regulated Protein Degradation

2.6K views

2:11

Proteins: From Genes to Degradation

3.6K views

Why Choose JoVE Core

Better learning outcomes for students

Peer review studies showed that students’ test grades are 2X higher after using JoVE video.

Easier teaching

90% of students report higher engagement with subject when using JoVE video.

Scientists in Action

Real-world demonstrations of scientific live experiments in top university labs. Bringing theory to life and showcasing research use of scientific concepts.

‘I beg you to call the boy back, and not send that note,’ she said. ‘I hate to think of your doing that. It isn’t the act of——’ "Never mind, we must have a long talk. At present there is a verbal message for me; what is it?" "Do you think she'd come? She'd have gone to Ship Island if I had caught her." "Why should I deny it?" Leona said boldly. "My husband was murdered. He was slain by Dr. Gordon Bruce for the sake of his money." The reformed system of education was to be not only moral and religious but also severely scientific. The place given to mathematics as the foundation of a right intellectual training is most remarkable, and shows how truly Plato apprehended the conditions under which knowledge is acquired and enlarged. Here, as in other respects, he is, more even than Aristotle, the precursor of Auguste Comte. He arranges the mathematical sciences, so far as they then existed, in their logical order; and his remarks on the most general ideas suggested by astronomy read like a divination of rational mechanics. That a recommendation of such studies should be put into the mouth of Socrates is a striking incongruity. The older Plato grew the farther he seems to have advanced from the humanist to the naturalistic point of view; and, had he been willing to confess it, Hippias and Prodicus were the teachers with whom he finally found himself most in sympathy. And turned their savage life to civil ways; The one at the end accomplishing a graceful pirouette is me--I mean He made his calculation. Countless times his nerves had been pulled by sounds which turned out on second thought to be only the contracting of the hot metal, subjected to the sun all day, as the evening breeze robbed it of its warmth. As he had made Mrs. Campbell his confidante from the first, he told her about this too, now, and finished with the half-helpless, half-amused query as to what he should do. "It may be any length of time before she decides that she is old enough, and it never seems to occur to her that this state of things can't go on forever, that she is imposing upon you." "And the most serious part of it," he added after a while, "is that she does not love me." "Will the guerrillas begin shootin' at us as soon's we cross the river?" "But we didn't lose 'em in action, and to say so'd be a lie," answered Si, whose conscience had none of the easy elasticity of his partner's. "We could report 'em burnt up by lightnin','but we won't. They was lost by sheer, dumbed carelessness, that me and you and the boys should knowed better than to've allowed. That's all there is of it, and that's what I'm goin' to report, if I have to." The battery was one of the oldest and best in the army, and its "fire discipline" was superb. She felt her heart grow sick. If she had been happy for four hours, why, in God's name, had they not passed like four hours instead of like four minutes? "Unto the ends of the earth—Hastings. There's a friend of Ades there wot'll guide me into the Spirit's ways." HoME 大香蕉综合伊人91新人 ENTER NUMBET 0015www.yxlable.com.cn
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