Rer ser and lysosomes - Study guides, Class notes & Summaries

AQA A LEVEL BIOLOGY Paper 1 2024 What is the function of the cell membrane? - ANS To control what enters and leaves the cell, acts as a barrier between the cell and its environment. What structural feature of the cell membrane allows substances to enter/leave? - ANS Partially permeable What is the fluid mosaic model? - ANS States that a membrane is a fluid structure (because phospholipids are constantly moving) with a "mosaic" of various proteins embedded in it Describe the...

Exam 2: BIOS 251 / BIOS251 (2024/ 2025 Update) Anatomy and Physiology I Exam Review| Guide with Questions and Verified Answers| 100% Correct| Rated A -Chamberlain Q: Division of the cytoplasm during cell division Answer: Cytokinesis Q: Cell division that produces reproductive cells (gametes) in sexually reproducing organisms Answer: Meiosis Q: Compare and Contrast Mitosis and Meiosis Answer: Mitosis produces two diploid (2n) somatic cells that are genetically i...

NWHSU HISTOLOGY 1 - EXAM 1 2024 WITH 100% CORRECT ANSWERS What is the term for a storage of charge across a membrane - correct answer capacitance what is the difference of charge on the inside of a membrane - correct answer -70mv what are 5 characteristics of a bilipid layer - correct answer 1. thin membrane 2. semipereability 3. allows protein to float around (fluid mosaic) 4. membrane proteins control what comes in, and goes out of the cell 5. gycocalyx what is the function of ...

NWHSU Histology 1 - Exam 1 Questions Verified Answers Current Update (A+ Pass) What is the term for a storage of charge across a membrane - Answers - capacitance what is the difference of charge on the inside of a membrane - Answers - -70mv what are 5 characteristics of a bilipid layer - Answers - 1. thin membrane 2. semipereability 3. allows protein to float around (fluid mosaic) 4. membrane proteins control what comes in, and goes out of the cell 5. gycocalyx what is the functi...

Straighterline Intro to Biology 101 Chapter 3 Already Passed Cell smallest unit of life Atom smallest unit of an element Molecule union of two or more atoms Tissue group of cells with a common structure and function Organ composed of tissue functioning together for a specific task Organ system composed of several organs working together Organism an individual Population organisms of the same species in a particular area Community interacting populations in a particula...

Endomembrane system components 1. Nuclear envelope 2. Endo Reticulum 3. Golgi aparatrus 4. Lysosomes 5. Plasma Membrane 6. Vesicles Endoplasmic Reticulum -extends off the nuclear envelope -a network of membrane bound compartments *rough ER and smooth ER* Exocytosis when a vesicles fuses with the plasma membrane *allows the vesicle to empty its contents into the extracellular space OR to deliver proteins embedded in the vesicle membrane to the plasma membrane* Endocytosis when a vesicles buds...

Cell division in which the nucleus divides into nuclei containing the same number of chromosomes - ANSWER- Mitosis The resting phase of mitosis. Cell grows, performs its normal functions, and prepares for division; consists of G1, S, and G2 phases - ANSWER- Interphase Cells that have left the cycle and cease dividing for a long time (or permanently) - ANSWER- G Zero (G0) Phase The first gap, or growth phase, of the cell cycle, consisting of the portion of interphase before DNA synthesis b...

BIO251 - EXAM 2 REMEDIATION 2023/2024 WITH ANSWERS GRADED PASS Haploid Number of Chromosomes In Humans - -answer-23 Control center of the cell; a part of the cell containing DNA and RNA and responsible for growth and reproduction - - answer-Nucleus Processes and transports proteins made at attached ribosomes; synthesizes phospholipids - -answer-Rough Endoplasmic Reticulum (RER) Fatty acid and steroid synthesis; detoxifies toxic substances - -answer-Smooth Endoplasmic Reticulum (S...

AQA A-Level Biology. 3.2 – Cells All Answers Correct 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 ribosomal RN...

AQA A-Level Biology. 3.2 – Cells questions and answers 100% guaranteed success. Structure of Nucleus. - correct 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. 4. Chromosomes: protein-bound, linear DNA. 5. Nucleolus: small...