Plasmodesmata Study guides, Class notes & Summaries

Testbank for Biology 2nd Edition from OpenStax CollegeChapter 1 1 Figure 1.6 1: C; 2: F; 3: A; 4: B; 5: D; 6: E. The original hypothesis is incorrect, as the coffeemaker works when plugged into the outlet. Alternative hypotheses include that the toaster might be broken or that the toaster wasn't turned on. 3 Figure 1.16 Communities exist within populations which exist within ecosystems. 4 B 6 D 8 C 10 C 12 B 14 D 16 Answers will vary, but should apply the steps of the scientific method. One poss...

Testbank for Biology 2nd Edition from OpenStax Collegeable of Contents Chapter 1 ................................................................................................................................. 2 Chapter 2 ................................................................................................................................. 2 Chapter 4 ................................................................................................................................. 5 Cha...

Which intercellular junction allows for the rapid movement of small molecules or ions to flow from one animal cell to the next? a. gap junctions b. tight junctions c. adhesion junctions d. desmosomes e. plasmodesmata > ANSWER: gap junctions When a lysosome fuses with a vacuole, a. they both disappear. b. they both return to the Golgi apparatus. c. protein synthesis begins. d. division begins. e. its contents are digested. > ANSWER: its contents are digested According to cell...

Question 1 Correct 1.00 points out of 1.00 Flag question Question text In an ecosystem, energy Select one: a. comes ultimately from bacteria b. cycles along with chemical nutrients c. typically flows from producers through a series of consumers d. typically flows from consumers to producers to decomposers Question 2 Correct 1.00 points out of 1.00 Flag question Question text Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy from least in...

Dye injected into a plant cell might be able to enter an adjacent cell through _________________. A. Plasmodesmata B. Tight Junctions C. Gap Junctions D. Desmosomes E. Magic CORRECT ANSWER A. Plasmodesmata Which of the following is NOT part of the endomembrane system? A. Golgi Apparatus B. Rough Endoplasmic Reticulum C. Centrioles D. Secretory Vesicles E. Transport Vesicles CORRECT ANSWER C. Centrioles The membrane bound organelle that all living cells have. A. Is a nucleo...

Naked Virus Correct Answer-A virus without an enclosing envelope, consisting only of a nucleocapsid Capsid Correct Answer-The protein shell of a virus that encloses its genetic material Icosahedral Symmetry Correct Answer-Is a limited (closed) structure and allows packaging of only limited genome sizes Quasi-Equivalence Correct Answer-The relationships between capsid proteins structures are similar but not identical Haemagglutination Correct Answer-Is a specific form of agglutination...

which of the following organelles is not surrounded by a membrane correct answer: ribosomes the main structural component of a plant cell wall is correct answer: cellulose the stack of thylakoids labeled A in this figure is called correct answer: granum without tight junctions in certain tissues correct answer: fluids may leak out past the barrier the junction would create carrie would like to observe the cilia on the surface of a live paramecium-- a single celled organism. the b...

Biology 115 Exam 3 WVU Latest Update Graded A+ Meiosis DNA replication prior to cell division Sister Chromatids are two copies of the same DNA(have the exact same sequence) Helicase Breaks H-bonds to open the replication bubble Topoisomerase Breaks a single covalent bond ahead of the replication bubble Single-stranded DNA binding proteins Prevents the re-annealing of a single stranded DNA DNA Polymerase III recognized double stranded DNA/RNA hybrid and synthesized DNA from ...

An antigen can induce an immune response in a host organism. Antigens are targeted by antibodies that are produced by the organism's immune system in response to contact with the antigen. Antibodies are specific to antigens. Many different cell types are involved in immune responses. Which of the following best describes the role of cell-to-cell communication during a response to an invasion of antigens? A Chemicals that are secreted from antigen-presenting cells then activate helper T cells...

gene - Answer-unit of inheritance that programs the amino acids of a polypeptide chain monomers: DNA and nucleic acids two types of DNA - Answer-DNA and RNA gene expression - Answer-DNA directs its own replication, controls protein synthesis flow of genetic info - Answer-DNA -> RNA -> Protein DNA backbone made of - Answer-sugar and phosphate complement base pairing - Answer-A w/ T and G w/ C phosphodiester linkage - Answer-links nucleotides, made of phosphate group that links the su...

BIOL 1201: Final Exam Questions with Verified Solutions What are the three types of cell signaling? 1. Direct Contact 2. Local 3. Distant Describe direct contact cell signaling and some examples. One cell actually physically touches another i.e. Gap Junctions (diffusion of signals through a plasma membrane), Plasmodesmata (diffusion of signals through a plasma membrane), and Cell-Cell Recognition (one cell have a type of signal molecule while the other cell has a receptor, and t...

True or False Plant cells use mitochondria to convert the glucose they produce into ATP. - True Plant cells don't have centrioles instead they have - MTC ___________ sticky cement which attaches adjacent plant cells to each other. - Middle lamella Plant cells are connected to each other via ______ which is analogous to __________ in animal cells - Plasmodesmata