User Meep

6

23

votes

1

answer

8k

views

Why do you die if you cannot breathe?

Feb 28 '16 at 6:39 AliceD♦ 48.4k

1

11

votes

1

answer

2k

views

Quinone A, Quinone B, Ubiquinone, Plastoquinone: whats the difference?

biochemistry photosynthesis energy-metabolism

Apr 16 '17 at 9:47 Community♦ 1

4

10

votes

2

answers

11k

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At what point during an action potential are the sodium potassium pumps working?

neuroscience cell-membrane action-potential

Jun 20 '18 at 19:08 Ahmed 1

3

10

votes

3

answers

2k

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Are non-coding RNAs introns?

genetics rna microrna rna-interference noncoding-rna

May 10 '16 at 3:04 Community♦ 1

2

10

votes

1

answer

1k

views

What is the mechanism behind tinnitus?

neuroscience brain hearing neurophysiology neurodegenerative-disorders

Aug 19 '15 at 6:26 Community♦ 1

8

votes

3

answers

8k

views

Photosystem 1 and 2; P680/P700; Chlorophyll a/b

molecular-biology plant-physiology photosynthesis light chloroplasts

May 6 '17 at 9:12 Anubhav Goel 607

2

8

votes

1

answer

649

views

If so many different hormones/molecules work by activating adenylyl cyclase, how do they have different effects?

cell-biology metabolism endocrinology cell-signaling pathway

Dec 8 '15 at 7:21 Vance L Albaugh 2,287

7

votes

1

answer

490

views

What stimulates a nociceptor?

neuroscience neurotransmitter pain touch

Feb 24 '18 at 21:33 mgkrebbs 7,870

1

6

votes

1

answer

165

views

Why are X-linked illnesses less common in females if females have X-chromosome inactivation anyway?

human-biology genetics human-genetics chromosome sex-chromosome

Feb 3 '17 at 22:13 Community♦ 1

1

6

votes

1

answer

4k

views

Lac operon: How can lactose enter the cell in the absence of lactose permease?

genetics proteins molecular-genetics gene-expression operons

Jun 5 '16 at 15:45 user1202039 1

5

votes

1

answer

9k

views

Why is the neuronal plasma membrane more permeable to potassium ions than sodium ions?

neuroscience neurophysiology

May 12 '19 at 20:49 Oren Milman 331

5

votes

2

answers

9k

views

Difference between thylakoids and lamellae in a chloroplast?

botany plant-anatomy chloroplasts

May 8 '18 at 21:03 Sarah Lee Johnson 1

5

votes

1

answer

2k

views

How is adrenaline (also known as “epinephrine”) a ligand?

biochemistry molecular-biology physiology endocrinology receptor

Jul 6 '16 at 5:26 Vance L Albaugh 2,287

2

5

votes

1

answer

256

views

How do mutations actually occur?

dna mutations dna-damage dna-replication

Dec 16 '15 at 15:53 MicMo 21

2

5

votes

1

answer

174

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How does de-myelination occur in multiple sclerosis?

genetics brain autoimmune

Apr 2 '15 at 10:25 Nandor Poka 3,048

5

votes

2

answers

3k

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How does optogenetics work?

molecular-biology molecular-genetics gene-expression vision

Mar 9 '15 at 13:41 Community♦ 1

1

4

votes

2

answers

3k

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Definition of a Katal (unit of enzyme activity)

biochemistry enzymes experiment assay-development units

Jun 28 '18 at 20:55 David 17.7k

4

votes

1

answer

377

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What is the purpose of two cell divisions in meiosis?

cell-biology molecular-genetics meiosis mitosis dna-replication

Aug 28 '17 at 17:17 minasi 73

4

votes

1

answer

414

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Quantifying DNA in a band on gel electrophoresis

dna dna-sequencing experimental-design gel-electrophoresis staining

May 24 '17 at 14:11 tswei 309

2

4

votes

0

answers

591

views

Do plants have cellulases?

cell-biology botany plant-physiology enzymes

Dec 13 '16 at 11:14 Meep 2,787

4

votes

1

answer

895

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Glycogen vs cellulose-curvature of glycogen molecule?

biochemistry molecular-biology organic-chemistry

Dec 12 '16 at 8:34 Community♦ 1

1

4

votes

1

answer

10k

views

What is the difference between a species tree, a gene tree and a phylogenetic tree?

evolution phylogenetics species speciation trees

Nov 5 '16 at 12:56 Remi.b 66.3k

1

3

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2

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1k

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Haploid eukaryotes?

chromosome eukaryotic-cells

Mar 15 at 3:18 Always Confused 2,447

3

votes

1

answer

155

views

Do findings on promoter methylation of the serotonin transporter gene and amygdala activity contradict the established view of serotonergic function?

neurotransmitter epigenetics stress serotonin

Jan 6 at 19:02 tyersome 4,297

3

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1

answer

77

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The shape of mRNA

rna translation mrna

Oct 1 '19 at 12:17 pepsiandsoda 215

3

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2

answers

368

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How does alternative splicing work?

molecular-genetics gene-expression rna transcription dna-methylation

Nov 5 '17 at 21:36 diogenes 139

2

3

votes

1

answer

86

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Is Sda a protein, or is it a protein domain of DnaA?

molecular-biology proteins cell-signaling protein-binding prokaryotic-cells

Apr 21 '17 at 16:39 Bryan Krause♦ 26.8k

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1

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1k

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COPI/COPII proteins and kinesins/dyneins

membrane-transport intracellular-transport cytoskeleton

Mar 27 '17 at 18:13 canadianer 16.4k

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2

answers

172

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Nomenclature of enzymes involved in synthesis of glutamine

plant-physiology enzymes amino-acids biosynthesis

Feb 28 '17 at 21:03 Community♦ 1

1

3

votes

0

answers

175

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Question about genetic recombination

genetics cell-biology molecular-genetics meiosis recombination

Jan 23 '17 at 17:45 Meep 2,787

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71 Questions

Why do you die if you cannot breathe?

Quinone A, Quinone B, Ubiquinone, Plastoquinone: whats the difference?

At what point during an action potential are the sodium potassium pumps working?

Are non-coding RNAs introns?

What is the mechanism behind tinnitus?

Photosystem 1 and 2; P680/P700; Chlorophyll a/b

If so many different hormones/molecules work by activating adenylyl cyclase, how do they have different effects?

What stimulates a nociceptor?

Why are X-linked illnesses less common in females if females have X-chromosome inactivation anyway?

Lac operon: How can lactose enter the cell in the absence of lactose permease?

Why is the neuronal plasma membrane more permeable to potassium ions than sodium ions?

Difference between thylakoids and lamellae in a chloroplast?

How is adrenaline (also known as “epinephrine”) a ligand?

How do mutations actually occur?

How does de-myelination occur in multiple sclerosis?

How does optogenetics work?

Definition of a Katal (unit of enzyme activity)

What is the purpose of two cell divisions in meiosis?

Quantifying DNA in a band on gel electrophoresis

Do plants have cellulases?

Glycogen vs cellulose-curvature of glycogen molecule?

What is the difference between a species tree, a gene tree and a phylogenetic tree?

Haploid eukaryotes?

Do findings on promoter methylation of the serotonin transporter gene and amygdala activity contradict the established view of serotonergic function?

The shape of mRNA

How does alternative splicing work?

Is Sda a protein, or is it a protein domain of DnaA?

COPI/COPII proteins and kinesins/dyneins

Nomenclature of enzymes involved in synthesis of glutamine

Question about genetic recombination