Cell: The Unit of Life Questions and Answers

querulous means having the quality of complaining of being argumentative what is the meaning of quarrel A a skill B a person who gossips C a connection D a dispute

In using which of the following lenses should the diaphragm be almost completely open to maximize resolution O A oil immersion O B low power OC high dry

O8 https ezto mheducation com ext map index html con con external browser 0 launch Url https 253A 2 mework i External structure for attachment to surfaces Allows for greater pathogenicity because it blocks phagocytosis by white blood cells Provides motility Hollow tube involved in conjugation Common target for antibiotics due to a different Only found in gram negative bacteria Often carry genes of antibiotic resistance and can be passed from one cell to another Contains the genetic material of the cell Structure is differentiated by Gram stain procedure MI Prev Saved 21 of 33 Next Help External stru for attachme surfaces Contains the genetic material c the cell Often carry genes of antibiotic resistance

External structure for attachment to surfaces Allows for greater pathogenicity because it blocks phagocytosis by white blood cells Provides motility Hollow tube involved in conjugation Common target Only found in gram negative bacteria Often carry genes of antibiotic resistance and can be passed from one cell to another Contains the genetic material of the cell Structure is differentiated by Gram stain procedure Prev Saved 21 of 33 HE Next

Question 10 The typical prokaryotic flagellum features O a 9 2 pattern of microtubules stators a basal body embedded in the plasma membrane and cell wall the plasma membrane Check all that could apply

Which of the following statements is TRUE O Membrane fluidity is necessary for the membrane fusion that occurs during vesicle transport O Glycolipids are found in equal numbers on the cytosolic and non cytosolic sides of the plasma membrane lipid bilayer The cytosolic surface of transport vesicles will become the extracellular surface of the plasma membrane Phospholipids rapidly flip flop between the surfaces of the lipid bilayer without the aid of enzymes All of these statements are true

You are studying a newly identified membrane protein using single particle tracking microscopy You repeat the experiment many times and consistently get similar results as shown in the three cells below What is the most likely explanation for this observation A The protein is attached to the cell s cytoskeleton B The protein is attached to the extracellular matrix A GUTHe calle

Drag the terms to the correct boxes to complete this infographic on the general parts of the eukaryotic cell Otoskeleton External Mitochondria GHO Glycocalyx Internal Saved Ribosomes Chromosomes EUKARYOTIC CELL membrane Boundary Cell Wall

Consider meiosis I and meiosis II Which of the following statements is TRUE Cells at the end of meiosis I are haploid Crossing over happens during meiosis II Meiosis II results in four genetically identical daughter cells To have enough DNA to complete meiosis it is synthesized again between meiosis I and meiosis II

The cytoplasmic membrane of the cell is made up primarily of what two types of biological macromolecules proteins Onucleic acids Ophospholipids carbohydrates

Which statement below can accurately be made by 16 reviewing the information in the Population Density Table A Great Britain is more densely populated than the United States B Canada is more densely populated than the United States C Australia is more densely populated than the United States Population Density Country Hong Kong China South Korea India Japan Vietnam United Kingdom Germany Italy France Spain Greece North Korea Mexico United States Canada Australia Population Density People Per Square Mile 17 299 1 329 1 046 868 733 702 601 521 319 238 212 211 163 86 10 8

The following statements are true or false If true write T on the answer blank If false correct the statement by writing on the blank the proper word or phrase to replace the one that is underlined 1 The microscope lens may be cleaned with any soft tissue 2 The microscope should be stored with the 4X objective in position over the stage 3 When beginning to focus use the lowest power lens 4 When focusing always focus toward the specimen 5 A coverslip should always be used with wet mounts and the high power oil lens

Many in the United States thought it was a mistake to leave Saddam Hussein in control of what part of the Middle East A Iran B Iraq C Kuwait D Yemen

Study the list Frederick Law Olmsted Calvert Vaux These two men are most associated with O Empire State Building O Hyde Park

Question 1 Points 1 Why did cities pave streets sanitize water and create public transportation systems between 1865 and 1920 To improve living conditions since urban areas became more congested To respond to political interests To increase taxes since better living conditions were offered

A cell lysis sample is presented containing a mixture of proteins genomic DNA cell debris How would the molecular masses of the protein mixture amp composition in terms of amino acids be deduced

8 A 0 5ml of E coli was plated on an MCB culture medium from a solution diluted to 103 116 colonies of E coli were observed on the culture medium after24 hours of incubation Determine the number of cells of E coli that were there in the original sample BIU EEEEE T GO

Supply 50 mg per 20 mL How many mL will be administered A 40 mL B 10 mL C 5 mL D 20 mL Question 10 Order 40 mg Supply 50 mg per 20 mL How many mL will be administered A 40 mL B 16 mL D 20 mL 5 mL

The net charge of the following biomolecule at physiological pH is O 1 0 2 0 NH

Sexual reproduction allows animals to conserve resources and reproduce only during optimal conditions guarantees that both parents will provide care for each offspring O enables males and females to remain isolated from each other while rapidly colonizing habitats can produce diverse phenotypes that may enhance survival of a population in a changing environment

Where will a B cell more than likely encounter antigen and go through class switching For the toolbar press ALT F10 PC or ALT FN F10 Mac

Scatter Plots are created between two categorical data types True False

The percent dissolved oxygen DO na aquatic environment is greater th a aquatic environment

What are the categories of organic mole lipids nucleic acids proteins carbohydrates sulfur carbon water

The main growth factors that regulate the check points of the cell cycle are A hormones C pheromones B structural proteins D neurological signals

Select ALL of the following that are TRUE of Physiology It requires the understanding of basic physical and chemical principles It is the study of the structure of of body parts It often focuses on the cellular and molecular level Its subdivisions are based on organ systems

Listen Match the type of endocytosis with its description Receptor mediated endocytosis Pinocytosis Phagocytosis 1 Engulfed molecules bind to receptors before endocytosis occurs Endocytosis of relatively large or solid material 3 Endocytosis of extracellular fluid 2

Which of the following is NOT a function of the smooth endoplasmic reticulum steroid based hormone synthesis breakdown of stored glycogen to form free glucose protein synthesis in conjunction with ribosomes lipid metabolism and cholesterol synthesis

Choose whether each property listed on the left is true for DNA or RNA A double stranded helical DODDE molecule A single stranded molecule Utilizes the nitrogenous bases A G C and U Found in the nucleus Utilizes the nitrogen bases A G C and T Mostly found outside of the nucleus 1 DNA 2 RNA

Match the body plane with its description V Transverse plane Oblique plane Sagittal Plane Frontal plane 1 2 3 4 Divides the body horizontally into superior and inferior parts Divides the body vertically into right and left parts Divides the body at an angle other than 90 to the vertical plane Divides the body vertically into anterior and posterior parts

This is a visible with a compound light microscope Fill in the blanks Mitochondria Nucleus Nucleolus D DY

Listen Fungi are classified primarily on the basis of Ofeeding structures Omode of nutrition Oecological role Oreproductive structures when they appear in the fossil record

The cells walls of fungi are reinforced with O cellulose Oct lignin

What are co stimulatory molecules What are co inhibitory molecules What are superantigens

4 Listen What is the function description of the structure labeled as 1 2 A hole that a cell resides in Resists mechanical forces Recoils the tissue after it has been stretched Synthesizes and secretes collagen elastic and reticular fibers

What is the best overall function description of the tissue shown here 6 8 9 3 2 EXK 4 1 5 Protection transition zone between stratified and simple epithelia Creates a mostly impenetrable barrier through multiple layers of barriers and is composed of 4 strata Medium rate of diffusion of substances across a barrier with a moderate level of control over the diffusion process Create a barrier unidirectionally move debris along the passageway Allows for sustained stretch and still be able to recoil later Fast rate of diffusion of substances across a barrier with a low level of control over the diffusion process Creates a mostly impenetrable barrier through multiple layers of barriers and is composed of 5 strata Binds substances components together allows nutrient exchange Protection secretion transition zone between stratified and simple epithelia Slow rate of diffusion of substances across a barrier with a high level of control diffusion process

Where is this type of tissue found located 2 Under epithelia Most of the digestive tract gallbladder 1 3 Center of epiphyses of long bones marrow cavity of diaphysis of long bones diploe of flat bones Epiglottis auricle of external ear Lines the ureters urinary bladder Covers the ends of long bones forms costal cartilage Tendons most ligaments Trachea upper respiratory tract Under skin around kidneys Outside region of osseous tissue

Where is this type of tissue found located 1 2 4 6 5 Kidney tubules ducts and secretory portions of small glands Trachea upper respiratory tract Largest ducts of sweat glands mammary glands Under epithelia Moist linings of the esophagus mouth and vagina Kidney glomeruli air sacs of the lungs Small amounts in male urethra Lines the ureters urinary bladder Most of the digestive tract gallbladder Palms of hands sole of feet 3

4 Listen Structures known as pseudopodia would be best described as buds forming from a ceil O cytoplasmic extensions Olong whip like strands Oshort rowing hairs grooves in the side of a cell

What classification of solution would 0 7 NaCl be Mertonic Pretonic Isotonic Homotonic Posttonic Hypertonic Endotonic Heterotonic Hypotonic

1 2 in the image labeled 6 3 4a 4b 5 6 20 7 Exocytosis of solutes Secondary active transport through a transport protein Facilitated diffusion through a carrier transport protein Simple diffusion through a phospholipid bilayer Osmosis through a transport protein and through a phospholipid bilayer Endocytosis of solutes Primary active transport through a transport protein Facilitated diffusion through a channel transport protein

What is the function best description of Phagocytosis Substances moved from the cell interior to the extracellular space via a vesicle Solutions with a greater solute concentration than that of the cytosol Movement of solutes from a region of higher concentration to lower concentration does not require energy is effective over short distances and requires transport proteins Solutions with the same solute concentration as that of the cytosol Movement of solvent from a region of higher concentration to lower concentration does not require energy is effective over short distances and occurs with or without transport proteins 000 00 Substances moved from the extracellular space to the cell interior via a vesicle Solutions with a lower solute concentration than that of the cytosol Movement of solutes from a region of lower concentration to higher concentration requires energy is effective over short distances and requires transport proteins Engulfing of foreign solids by cells and moving them to the cell interior via a vesicle Movement of solutes from a region of higher concentration to lower concentration does not require energy is effective over short distances and does not require transport proteins

What happened to the red blood cell when it was a placed in a solution and ended up looking like the cell in image number 1 1 2 3 Water was moving in to the cell and no water was moving out of the cell Equal volumes of water moved in and out of the cell More water was moving out of the cell than was moving in to the cell Water was moving out of the cell and no water was moving in to the cell More water was moving in to the cell than was moving out of the cell No water was moving in or out of the cell

What type of solution was the cell in image number 2 placed in 1 2 3 A solution with a lower solute concentration than that of the cytosol A solution with the same solute concentration as that of the cytosol A solution with a greater solute concentration than that of the cytosol

Put the following steps of tissue repair of a typical skin wound in chronological order Inflammatory chemicals cause blood vessels to dilate and become more permeable bringing immune cells clotting proteins and fluid to the area The surface dries to form a scab The fibrosed area matures and pulls the wounded areas back together The epithelium completes regeneration The scab detaches Inflammatory chemicals are released are released by injured tissues Debris is phagocytized by macrophages The epithelium begins to regenerate Granulation tissue is formed

Match the tissue type with its description Areolar connective tissue Adipose tissue Elastic connective tissue Reticular connective tissue 1 2 3 Cells are closely packed with little extracellular matrix functions in nutrient storage insulation and shock absorption 4 Loosely arranged fibers with increased ground substance that can act as a water reservoir most widely distributed connective tissue that acts as a universal packing material between others A dense connective tissue containing a high proportion of elastic fibers allows tissues to recoil after stretching A loose connective tissue with thin reticular fibers that form a mesh like stroma acts as a support for free blood cells

Which of the following tissues would you expect to find lining a body surface that is subjected to a large amount of wear and tear stratified squamous epithelium skeletal muscle tissue dense regular connective tissue stratified columnar epithelium

Which of the following is NOT a function of epithelial tissues Secretion Insulation Protection

00 Smooth ER Mitochondria Lysosomes Peroxisomes Rough ER Golgi Apparatus function 1 2 3 4 5 6 Makes ATP via aerobic cellular respiration Detoxifies toxic substances and neutralizes free radicals Functions vary depending on cell type but include lipid metabolism drug detoxification and storage and release of calcium Site where ribosomes synthesize secreted proteins integral proteins and phospholipids encloses newly formed proteins in vesicles and sends them to the Golgi Modifies concentrates and packages proteins and lipids for export from cell or to plasma membrane or lysosomes Digests ingested microbes and toxins degrades por

Vesicles are membranous sacs made up of a phospholipid bilayer used for transport of molecules into and out of the cell used for transport of molecules within a cell all of the above