Explain why: 5. How many membranes comprise the nuclear envelope. - two6. DNA moves regularly from the nucleus to the cytoplasm. False7. Most of the DNA in a eukaryotic cell is found in thenucleus.8. Chromosomes contains the genetic instructions. T9. The cytoplasm is the fluid medium of the nucleus. F10. The organelle that extracts energy from carbohydrates and forms ATP molecules . mitochondria

Nucleus is only present in eukaryotes and it is surrounded by a membrane called nuclear envelope. it…

Answered: ow many membranes comprise the nuclear…

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter4: Cell Structure

Section: Chapter Questions

Problem 6SA: What controls the passage of molecules into and out of the nucleus? a. endoplasmic reticulum, an...

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Similar questions

The eukaryotic cell at left is in the process of cytoplasmic division. Is this cell from a plant or an animal? How do you know?
on is a change in the DNA sequence. 0. The mRNA carries the information from the DNA to the ribosomes. 9. Mutation in eggs/sperms may not affect future generations by transmitting these changes in the offspring. 10. Mutation in non-sex (somatic) cells are hereditary. What’s In Activity 1. Analyze the diagram below and give your honest interpretation. DNA RNA PROTEIN nucleus cytoplasm Interpretation: 2.
1. Differentiate between prokaryotic and eukaryotic cells? 2. In your view, which cellular organelle is most important and why? 3. Why does a cell need a cell membrane? 4. What is the importance of three types of cytoskeletons a cell? 5. What are different types of cell junctions? What is their role?
Item24 Item 24 Removal of old organelles is via a process called Multiple Choice pinocytosis. autophagy. autolysis. filtration. vascularization. Item25 Item 25 Which of the following serves to increase the surface area of a cell? Multiple Choice Microvilli Microfilaments Centrioles The nucleolus Item26 Item 26 Which of the following structures function in holding organelles in place, maintaining cell shape and rigidity, and directing organelle movement? Multiple Choice Centrioles Flagella Golgi apparatus Microtubules Cilia
please just true or false 1-In human, DNA is organized into chromosomes during the division cell. 2-All cells of human contain nucleus 3-Generally, the size of Human cells (regardless the type of cell) are larger than the prokaryotic cells. 4-Epithelial tissues are not always supported by connective tissue. 5-The cell wall of human cell is chemically simpler than cell wall of prokaryotic cell.
1. Match the cell structures in column A with their functions in column B. Column A 1. 2. 3. 4. 5. Centrioles Chromatin Cytoplasm Cytoskeleton Rough Endoplasmic Reticulum (ER) 6. 7. 8. 9. 10. 11. Peroxisomes 12. Plasma membrane Golgi apparatus Lysosomes Mitochondria Nucleolus Nucleus 13. Ribosomes Column B a. a selectively permeable barrier between the cell's intracellular and extracellular environments b. includes cellular organelles and cytosol c. contains the cell's genetic material (DNA) d. synthesizes rRNA and assembles ribosomes in the nucleus e. genetic material within the nucleus; consists of uncoiled chromosomes and associated proteins f. synthesizes new proteins destined for the plasma membrane, lysosomes, or secretion from the cell g. sites of protein synthesis; may be bound to the ER ("bound") or found within the cytoplasm ("free") h. a stack of flattened membranes that are the site where proteins from the ER are modified, packaged, and sorted for delivery to other…
1. Organlles work together to sustain the overall function of the cell and maintain homeostasis (state of balance). Predict what would happen if one of the organelles was removed. How would that affect the survival and efficienct of the cell? 2. Which organelles are parts of the endomembrane system. The organelles are: Chloroplast Mitochondria Lysosome Endoplasmic Reticulum Golgi Bodies Ribosomes Cell Wall Vacuole Microtubule
5 Item 5 One example of a membrane-bound organelle is a ribosome. Group startsTrue or False 6 Item 6 Peroxisomes are membrane-bound organelles. Group startsTrue or False Item7 Item 7 Which of the following choices describes three general functions cells must perform? Multiple Choice a. Maintain shape, obtain nutrients, and dispose of wastes b. Respond to all hormones, maintain a waterproof barrier, give rise to gametes c. Grow until dividing, store complex carbohydrates, generate antibodies d.Take up oxygen, prevent water entry, undergo mitosis frequently
I have a biology question: prokaryotic and eukaryotic cells BOTH have: a. An endoplasmic reticulum b. Membrane bound nuclei c. A cell membrane and ribosomes d. Circular chromosomes match each organelle to its function lysosome Contains hydrolytic enzymes mitochondria Site of ATP synthesis in eukaryotic cells round endoplasmic reticulum Manufactures new membrane and transports proteins Golgi apparatus Modifies and packages cell secretions into vesicles for export peroxisome. In plant and animal cells detoxifies hydrogen peroxide
9A. Matching cell structures their functionsiutocues) Answer Structures Function Centrioles 1. Composed of proteins and rRNAs Cytosol 2. Region in prokaryotes contains a chromosome Golgi complex 3. ring of nine outer microtubule doublets (9+2 axoneme) Plasma membrane 4. Support the cell and protect against plasmolysis Ribosome 5. Composed of glycoprotein(s) and involved in transferring material into or out of the cell Transporters 6. contain hydrolytic enzymes and involved in autophagy Receptor 7. Composed of microtubules and sweep mucus out of respiratory tract Peroxisome 8. Controls which material can get in or out of the cell Nucleoid 9. Contains chromosomes and has nuclear envelope Cilia 10. Maintain membrane fluidity 11. contains necessary enzymes for that modify, sort, and package of proteins or lipids for extracellular or intracellular use 12. Fluids baths between organelles 13. Is a ligand-binding site and can receive specific signals from out of the cell 14. Contains catalase…
2.- An electron micrograph of a cell-shows- two- different organelles that break down proteins. What are these organelles A. Lysosames and proteasomes B. Endoplasmic reticulum and microfilaments C. Peroxisomes and ribosomes D. Ribosome E-Golgi complex and microtubules
What do the cells labeled A and B have in common that is lacking in C? (pick one) 1. nucleus 2. cell wall 3. plasma membrane 4. ribosomes

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