Nuclear pores - Study guides, Class notes & Summaries

Histology NBME full Exam Questions & Answers 2024/25 1.Nuclear pores: A)Combine to form a hexagonal structure B)Have 50nm in diameter C)Their number is not connected with cellular activity D)Nuclear lamina are connected to their inner rings E)A and C are correct F)B and D are correct - ANSWERSE)A and C are correct The conducting zone of the respiratory system: A) Includes the upper airways, trachea and the bronchial tree (including the terminal bronchioles) B) Is designed for air...

MULTIPLE CHOICE 1. Which statement best describes the cellular function of metabolic absorption? a. Cells can produce proteins. c. Cells can take in and use nutrients. b. Cells can secrete digestive enzymes. d. Cells can synthesize fats. ANS: C In metabolic absorption, all cells take in and use nutrients and other substances from their surroundings. The remaining options are not inclusive in their descriptions of cellular metabolic absorption. PTS: 1 REF: Page 2 2. Most of a cell’s ge...

Nucleus ~:- contains the nucleolus, a small dense structure composed largely of RNA, most of the cellular DNA, and the DNA-binding proteins, the histones, that regulate its activity What 4 elements is DNA composed of? ~:- 1) deoxyribose phosphate molecule 2) pyrimidine bases 3) purine bases 4) hydrogen bonds (stabilize the helix through large numbers) what are Ribosomes? ~:- RNA-protein complexes (nucleoproteins) that are synthesized in the nucleolus and secreted into the cytopla...

Apoptosis ~:- A programmed cell death that is regulated or programmed. Cellular selfdestruction for elimination or unwanted cell populations Necrosis ~:- Rapid loss of the plasma membrane structure, organelle swelling, mitochondria dysfunction What is the #1 cause of cellular injury leading to necrosis (especially the kidney and heart) ~:- hypoxia What is the #1 cause of hypoxia? ~:- ischemia Main component of a cell 1 | P a g e | © copyright 2024/2025 | Grade A+ Master01 | Septe...

AQA A-Level Biology. 3.2 – Cells Questions and Answers Already Passed Structure of Nucleus. 1. Nuclear envelope: double membrane surrounding nucleus, outer membrane continuous with the (R)ER of the cell. 2. Nuclear pores: allow the passage of larger molecules, such as mRNA, out of the nucleus. 3. Nucleoplasm: granular, jelly-like material making up the bulk of the nucleus. 4. Chromosomes: protein-bound, linear DNA. 5. Nucleolus: small spherical region(s) in nucleoplasm. Manufactures rib...

Nuclear parts of a cell o Nucleus: contains chromosomes, & regulates DNA of the cell. Defining structure of eukaryotic cells (they all have nucleus). Passes genetic traits between generations. Contains nuclear envelop, nucleoplasm, nucleolus, nuclear pores, chromatin, & ribosomes. o Chromosomes: thread like rods of DNA. Short deoxyribonucleic acid, DNA is the genetic material that stores information about the plant/animal. o Chromatin: DNA & Protein makeup chromosomes o Nucleolus: Proteins,...

AQA A-Level Biology Chapter 3.2 – Cells Exam || All Questions & Answers (Rated A+) AQA A-Level Biology Chapter 3.2 – Cells Exam || All Questions & Answers (Rated A+) Structure of Nucleus. - ANSWER - 1. Nuclear envelope: double membrane surrounding nucleus, outer membrane continuous with the (R)ER of the cell. 2. Nuclear pores: allow the passage of larger molecules, such as mRNA, out of the nucleus. 3. Nucleoplasm: granular, jelly-like material making up the bulk of the nucleus. ...

cell - correct answer basic structural and functional unit of living organisms most cells are composed of what elements? - correct answer N, O, C, H tissues - correct answer groups of cells similar in structure and function are all cells the same? - correct answer no 3 main regions of a cell - correct answer nucleus, cytoplasm, and plasma membrane nucleus - correct answer control center of the cell. contains DNA. 3 regions: nucleolus, chromatin, and nuclear envelope (membrane)...

Eukaryote - ACCURATE ANSWERS An organism whose cells contain complex structures enclosed within membranes. The defining membrane bound structure thats sets them apart from prokaryotic cells is the nucleas or nuclear envelope within which the genetic material is carried. All species of large complex species are eukaryotes, including animals, plants and funghi. Euchromatin - ACCURATE ANSWERS This shows as pale areas in the nucleas under electro magnification. It is a less densly packed form of ...

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