Control biol Guías de estudio, Notas de estudios & Resúmenes

BIOL 250 HUMAN ANATOMY AND PHYSIOLOGY Final Exam, Answered-In a negative feedback system, what is component that causes a change to reverse the situation and return to the value in the normal range? A. Effector B. Control Center C. Sensor D. Stimulus - A. Effector Which organ system is responsible for delivering oxygen and nutrients to tissues and equalizing the temperature in the body? A. Cardiovascular system B. Endocrine system C. Muscular system D. Respiratory system - A. ...

BIOL 1306 Final Exam - Questions and Answers Before a cell divides, it is crucial that all the DNA is first replicated (copied). True The building blocks of DNA are _________. Nucleotides The cell's ability to control its own level of gene expression is called ___________. Gene regulation All the following statements are true regarding mutations EXCEPT -Mutations can be harmful. -Mutations are spontaneous. -Mutations are random. -Mutations can be neutral. -All the above are true regarding muta...

BIOL 2300 Exam 1: Quiz Questions with Complete Solutions How does genetic information flow in an organism? DNA > RNA > protein Contrast chromosomes and genes. Genes take part in the production of proteins through the processes of transcription and translation. They are the functional units of heredity. Chromosomes carry genes and take part in cell division during mitosis and meiosis. A dividing eukaryotic cell is treated with a drug that inhibits the molecular motors associat...

Inversion - Answer A section of rotated 180 degrees then reinserted this affects several amino acids and results in a non- functional protein Duplication - Answer a gene or a part of a gene is copied so the there are 2 or more copies of a gene on a chromosome this happens during crossing over within a homologous pair Translocation - Answer A section of a gene breaks off and attaches on to another non- homologous chromosome 3 features of stem cells - Answer Unspeciali...

This summary contains information about: RNA polymerase, Intragenic promoters, CpG island promoters, DNA cis-acting elements, histone modifications, epigenetics, enhancers, DNA methylation, and tumours.

BIOL 2200 PATHO WEEK 3: CASE STUDY 2 LATEST UPDATE GRADED A+ Describe the difference in the histology of the tumour if it had been assessed as a adenoma rather than adenocarcinoma An adenoma is a benign tumour: lost ability to control proliferation the growth is slow the cells are still well differentiated and organized, they also do not invade beyond their capsule do not metastisize. An adenocarcinoma is a malignant tumour: more rapid growth rate loss of differentiation and no lo...

1. Myocyte Muscle cell 2. Sarcolemma Plasma membrane of myocyte 3. Sarcoplasm Cytoplasm of myocyte 4. Myofibril Tightly packed filament bundles found within skeletal muscle fibers. Contractional unit of a muscle cell. 5. Sarcoplasmic reticulum Site of calcium storage in a muscle cell. Surrounds the myofibrils 6. Transverse tubules (T-tubule) Inward extensions of the sarcolemma that dive into the muscle fiber and surround each myofibril to form a tunnel- like network within the musc...

BIOL 235 HUMAN ANATOMY AND PHYSIOLOGY STUDY GUIDE (REVISED). Chapter 1 An Introduction to the Human Body Objectives After completing this chapter, you should be able to 1. define the terms anatomy and physiology. 2. define the following levels of structural organization: chemical, cellular, tissue, organ, system and organism. 3. identify the 11 systems of the human body, list representative organs of each system, and describe the major functions of each system. 4. identify the basic l...

BIOL 235 2023 Exam Questions and Answers All Correct Plasma membrane - ANSWER Cells flexible outer surface, separates internal and external environments. Helps communication between cells and outside environment. Cytoplasm - ANSWER Cellular contents between the plasma membrane and nucleus. 2 main components: cytosol and organelles. Nucleus - ANSWER Large. Contains most of the cell's DNA and chromosomes that house DNA associated with several proteins, and th...

BIOL 203 Practice Exam Correct Questions & Answers(Scored A)!! Proteogylcans - ANSWER attract water and give flexibility to cartilage Trabeculae are found in... - ANSWER spongy bone and are able to bear weight Endochondral development of bone, what occurs second? - ANSWER A bone collar forms around the edge of the cartilage The part where the epiphyseal plate where new bone is laid.. - ANSWER Diaphyseal side What nutrient is the most important to collagen formation... - ANSWER V...