Category Archives: Articles and Videos

gene expression

December 4, 2020 by Wendi 0

Regulation of Gene Expression

This video describes how activators and repressors can regulate gene…

activator alternative splicing gene expression gene regulation heterochromatin Lac operon methylation regulation of gene expression repressor transcription factors

protein synthesis

November 12, 2020 by Wendi 0

Protein Synthesis (Translation)

This video describes the process of translation (protein synthesis on…

amino acids anticodon genetic code mRNA protein protein synthesis ribosome rRNA stop codon Translation tRNA

transcription

October 31, 2020 by Wendi 0

Transcription

This video describes initiation, elongation, and termination of transcription as…

alternative splicing polymerase promoter RNA polymerase RNA processing termination sequence transcription

immunity

October 29, 2020 by Wendi 3

How does immunity work?

How does immunity work? There has been a lot of…

antibodies COVID immunity long-term immunity memory cells

DNA mutations

October 26, 2020 by Wendi 0

DNA Mutations

This video describes point mutations and recombination mutations, how they…

DNA mutations NDA mutations point mutations recombination mutations transposable elements transposons

DNA replication

October 23, 2020 by Wendi 0

DNA Replication

This video describes the structure of DNA and nucleotides, telomeres…

Biology Cell cycle DNA replication Fanshawe College Genetics helicase ligase nucleotide polymerase purine pyrimidine telomerase telomere topoisomerase

estrogen and testosterone

October 9, 2020 by Wendi 0

Endocrine System

Hormones Produced by the Testes and Ovaries

This video describes the regulation of the testosterone and estrogen…

corpus luteum estrogen follicle follicular phase FSH Granulosa cells Leydig cells LH luteal phase menopause ovaries ovulation PMS progesterone Sertoli cells Testes testosterone Theca cells

insulin

October 2, 2020 by Wendi 0

Endocrine System, Food, Hormones

The Pancreas and Blood Sugar Regulation

This video describes how blood sugar is regulated by the…

alpha cells alpha islet cells beta cells beta islet cells blood glucose blood sugar diabetes glucagon glucose hyperglycemia hypoglycemia insulin insulin resistance pancreas sugar cravings type 1 diabetes type 2 diabetes weight gain weight loss

stress

September 24, 2020 by Wendi 1

Endocrine System, Hormones, Immune system

Adrenal Glands and Stress

This video describes the function of the adrenal gland hormones…

Addison’s adrenal cortex Adrenal gland adrenal medulla adrenals aldosterone androgen belly fat chronic stress cortisol Cushing's depression DHEA epinephrine glucocorticoid mineralocorticoid stress

Thyroid gland

September 18, 2020 by Wendi 0

Endocrine System

Thyroid and Parathyroid

This video describes the anatomy, and function of the thyroid…

calcitonin follicular cells Grave’s Hashimoto’s hyperthyroidism hypothyroidism iodine osteomalacia osteoporosis parathyroid Ricket’s T3 T4 thyroid Vitamin D

Anterior Pituitary

September 15, 2020 by Wendi 0

Endocrine System

Hypothalamus and Pituitary Gland

This video describes the hormones produced by the hypothalamus and…

ACTH ADH anterior pituitary antidiuretic hormone CRH FSH GHRH growth hormone hypothalamus LH oxytocin pituitary gland positive feedback posterior pituitary thyroid stimulating hormone tropic hormones

hormones

September 12, 2020 by Wendi 0

Endocrine System

Endocrine System Overview

This video describes the main endocrine glands and their main…

adrenal amines catecholamines Endocrine fat-soluble hormone glands hormone hypothalamus pancreas pituitary steroid thyroid thyroid hormones water-soluble hormone

48/132