week 6 lab

Virtual Lab Activities Activity 3a -Measuring diffusion 1. In this experiment, potassium permanganate diffuses through the agar from an area of concentration to an area of concentration. 2. Explain how the concentration gradient affects the diffusion rate in your experiment. 3. List three other factors (other than concentration gradient) that will affect diffusion rate. 1 2 3

Bellwork 3/23 1. Which characteristic would communicate that the organism is a eukaryote? (12b.DOK 1) a. The organism can convert solar energy into chemical energy b. The organism has a structure for movement/mobility c. The organism has membrane-bound organelles d. The organism contains DNA 2 Which organism has the following characteristics: heterotrophic, eukaryotic, unicellular or multicellular, cell wall made of chitin? (12b.DOK 1) a. Protist b. Plant C. archaebacteria d. Fungi 3. What is the basic structure of a virus? (12e.DOK 1) DNA or RNA surrounded by a protein coat A capsid surrounded by a protein coat A head and tail fibers a. b. С. d. A tiny cell surrounded by a cell wall 4. What evidence would best support the argument that a virus is nonliving? (12e.DOK 1) Its genetic material is not contained in a nucleus. It lacks mitochondria for the production of energy. It cannot reproduce without a host. It does not have a cell wall to give it support and structure. a. b. С. d.

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Gen bio1

I need the marked locations labled.

=quires Respondus LockDown Browser Time Left:0:55:57 Abdulla Salem: Attempt 1 E) 20 kilocalories per gram of wax burned Question 36 (2 points) lons can travel directly from the cytoplasm of one animal cell to the cytoplasm of an adjacent cell through O A) gap junctions. B) intermediate filaments. C) plasmodesmata. D) desmosomes. E) tight junctions. Question 37 (2 points) A. C. В. H. H H-C-N H. H-C-SH H-C H. H. H H hp

28 Correctly complete the following sentence Signal Recognition Particles (SRP) enable ribosomes that are making proteins to dock with the endoplasmic reticulum. A prokaryotic cell that doesn't make this SRP is likely to Select one alternative: be unable to produce proteins destined for the endomembrane system or secretion be unable to secrete proteins function as normal start using ribosomes free in the cytosol to produce proteins destined for the endomembrane system.

Lecture 6-Worksheet Part 1: Below are TWO ER bound proteins. The green region is indicating the ER transfer signals. 1. Can you label the start and stop transfer signals based on the rules we just went over? 2. Draw and label these proteins. (1) (2) N N ER lumen Part 2: Sketch the orientation of this protein as it would appear in the transport vesicle and plasma membrane. membrane-enclosed organelle (e.g., ER or Golgi) vesicle plasma membrane 1₂:0. 0-9 ? CYTOSOL extracellular fluid 165

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I need the cell structure labeled.

Q5

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Course: SCI Biology Unit: Unit 08: Cell Membrane SCI Biology - Unit 08: Cell Mer 1) The process of moving a large substance into a cell by means of a vesicle. OA.) Endocytosis OB.) Exocytosis Save 2) The process of moving a large substance out of a cell by means of a vesicle. OA.) Exocytosis R) Endorytosis

ll Stay Home-Dhiraagu ? 13:05 Not Secure O 42% moodle.villacollege.edu.mv 3 of 3 SECTION - B Task: 2 Complete the following table by writing the name of the cell part or organelle in the right hand column that matches the structure/function in the left hand column. A cell part may be used more than once. Structure / Function Cell part Stores material within the cell The sites of protein synthesis Transport materials within the cell The region inside the cell except for the nucleus Small bumps located on portions of the endoplasmic reticulum The membrane surrounding the cell Composed of a phospholipids Longer whip-like structures used for movements Site where ribosomes are made.

Question:- Define the bacterial categories that each type of bacteria belongs to. You only have to name the categoriesNOT the actual species of bacteria Note: there will be more than one category . A bacterial species that grows best at 37 degrees Cand when a small amount of oxygen is present

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Questions 1. If the potato cells were hypotonic to the surrounding solution, the surrounding solution itself would be what to the potato cells (hypertonic, hypotonic, or isotonic)? 2. Were the potato cells submerged in water with no salt hypertonic, hypotonic, or isotonic to the surrounding environment? 3. Were the potato cells submerged in 5 g/100mL salt solution hypertonic, hypotonic, or isotonic to the surrounding environment? 4. Look at your graph. At approximately what concentration of salt solution would the potato cells have likely been isotonic with the surrounding solution? [Tip: Estimate approximately at what concentration there would have been no change in the average length of potato strips.] B. Turgor and Plasmolysis You have observed that concentration differences between cells or between a cell and its environment can affect the movement of water across cell membranes. This can be observed using changes in volume or size as in the previous experiment or visually, looking…

LAB EXERCISE 3A A. Cell Membranes. In the square provided, draw a double layer of phospholipids with a large protein embedded within it. Label the parts of this phospholipid bilayer that are partially charged (polar) and uncharged (non-polar). B. Anatomy of a Cell. Draw a "typical" cell in the space below (see lecture notes or the labeled/unlabeled Images on Canvas). Sketch the following organelles within the cell and label them. Plasma (Cell) Membrane Nucleus Ribosome Rough Endoplasmic Reticulum Smooth Endoplasmic Reticulum Golgi Apparatus Mitochondria Lysosome Cytoplasm Microvilli Cilia A region of exocytosis

Need help What so nuclei accomplished? What do nuclei accomplished? What is the cytoplasmic streaming and why it is useful?

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Task: 1 Create a concept map outlining the difference between Unicellular and Multicellular organisms. Please include the key concepts: 1. The top should state "Organisms" 2. Branch off into Unicellular Organisms and Multicellular Organisms 3. Three different types of unicellular organisms and how they obtain and digest their food. 4. Name 5 different types of cells that can be found in the human body (with images and their function). 5. Name 3 different types of plant cells, and describe their key functions (with images). (https://youtu.be/9iqeAdJ01UQ-Students you can use this link for your reference) Task: 2 Answer the following questions: 1. How do unicellular entities move? 2. How do unicellular organisms eat and reproduce? 3. State one similarity between unicellular and multicellular organisms. 4. What is an organelle? 5. What is cytoplasm?

Activity 1 The Living Cell 1. Draw and label the parts of the bacterial celI. What is a cellular organelle? Give the chemical composition and function(s) of each organelle in the bacterial cell.

Activity 13 Urine Culture Inoculating Urine with a calibrated loop   The number of microorganisms per milliliter recovered on urine culture can aid in the differential diagnosis of urinary tract infection (UTI). Plastic or wire inoculating loop available commercially, have been calibrated to deliver a known volume of liquid when handled correctly, thus enabling the microbiologist to estimate numbers of organism in the original specimen based on colony forming unit (CFU) of growth on cultures.   PROCEDURE: 1st day 1. Gently swirl the specimen bottle to mix the urine specimen. 2. Label all plated media with name of patients, clinical specimen used and date. Label at the bottom of plates and not on the cover. 3. Obtain a disposable calibrated loop. 4. Dip the loop straight into the urine specimen so that the loop part is completely covered. Withdraw straight out. See fig. 16-18 5. Inoculate blood agar plate (BAP) as shown in fig.16-19 6. Incubate at 35 – 37˚C for 18 – 24 hours. 7. Dispose…

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