6 multiple choice 2 points programmed cell death is known as necrosis apoptosis osmosis cirrhosi

Name: 6 multiple choice 2 points programmed cell death is known as necrosis apoptosis osmosis cirrhosis 7 multiple choice 2 points cell membranes contain embedded proteins of many types are select 06052
Uploaded: 2023-06-14T08:22:05-08:00
Duration: 1 min 29 s
Channel: Madhur L
Description: 6 multiple choice 2 points programmed cell death is known as necrosis apoptosis osmosis cirrhosis 7 multiple choice 2 points cell membranes contain embedded proteins of many types are select 06052

6 multiple choice 2 points programmed cell death is known as...

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Multiple Choice (2pts) 1. Carbohydrate layer on the plasma membrane includes all of the following except: (a) Adhesion (c) Gives a cell its distinctive characteristics (b) Recognition (d) None of these answers are correct 2. Bacteriorhodopsin: (a) Act as a membrane transport protein (c) Act as a membrane protein receptor (b) Act as a membrane channel protein (d) Act as a membrane gated channel protein 3. Which structures add to the fluidity of the plasma membrane: (a) Carbohydrates (c) Glycocalyx (b) ATP (d) Cell cortex 4. Which enzyme ensures there is an equal distribution of newly synthesized phospholipids across the membrane? (a) Flippase (c) Scramblases (b) Spectrin (d) transferase 5. Carbohydrate layer on the plasma membrane: (a) Protection (c) Gives a cell its distinctive characteristics (b) Cell Recognition (d) All are correct 6. ________ protein is a major component of the cortex in RBCs. Mutations in this protein develop a form of anemia that can cause to RBCs to develop a flattened shape, making them extremely fragile. (a) Lectin (c) Glycocalyx (b) Spectrin (d) Porins 7. Na+ pumps function is to: (a) Pump Na+ into the cell (c) pump Na+ into and out of the cell (b) Pump Na+ out of the cell (d) Pump K+ out of the cell 8. Ca+ pump include all of the following EXCEPT: (a) It is an ATPase (c) Pump Ca+ out of the cell (b) Pump Ca+ into the cell (d) Pump Ca+ against its concentration gradient 9. The probability of a ________ channel being open is controlled by the membrane potential. (a) Ligand gated (c) Mechanical gated (b) Voltage gated (d) Transmitter-gated 10. The opening of a ________ channel is controlled by the binding of some molecules to the channel. (a) Ligand gated (c) Mechanical gated (b) Voltage gated (d) Transmitter-gated 11. The opening of a ________ channel is controlled by a mechanical force applied to the channel (a) Ligand gated (c) Mechanical gated (b) Voltage gated (d) Transmitter-gated 12. The shape and mechanical properties of plant, yeast, and bacteria cells is established by a: (a) Plasma membrane (c) Plasma wall (b) Cell membrane (d) Cell wall 13. Which of the following molecules would NOT be found in animal plasma membranes? (a) Proteins (c) Glycolipids (e) Cholesterol (b) Phospholipids (d) Nucleic acids 14. Which molecule in animal plasma membranes reduces the permeability of the membrane to most bio molecules? (a) Proteins (c) Glycolipids (e) Cholesterol (b) Phospholipids (d) Nucleic acids 15. The phospholipid bilayer has a solid consistency? (a) True (b) False

Madhur L.

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PRE-LAB Activity 3: Examining the Possible Role of Osmosis in Cystic Fibrosis. In this procedure, what is used to represent a plasma membrane? PRE-LAB Activity 4: Identifying the Stages of the Cell Cycle. Match each of the following stages of the cell cycle with its correct description: a. metaphase b. prophase c. interphase d. anaphase e. telophase 1. Sister chromatids reach opposite poles. 2. DNA is replicated. 3. Nuclear envelope breaks down. 4. Chromosomes line up along the equator. 5. Sister chromatids split and move to opposite poles. PRE-LAB Activity 5: Exploring Cellular Diversity. Match each of the following cell types with its correct description: a. red blood cell b. cardiac muscle fiber c. neuron d. sperm 1. packed with actin and myosin 2. propelled by a flagellum 3. filled with hemoglobin 4. characterized by an extension called an axon The Functional Anatomy of the Cell In this section we will study the structure and function of the cells of the human body. We begin by examining the three major parts of a cell: the plasma membrane, the cytoplasm and its organelles, and the nucleus. As you read about the parts of the cell, refer to Figure 1, which depicts a generalized body cell. The Plasma Membrane The plasma membrane is a thin phospholipid bilayer in which various proteins are embedded or attached (Figure 2). The phospholipids are composed of hydrophilic ("water-loving") phosphate heads and hydrophobic ("water-fearing") lipid tails. Two types of proteins are associated with the phospholipid bilayer: Integral proteins are embedded at least partially within the cell membrane, whereas peripheral proteins are located on the interior or exterior cell membrane. Some integral proteins, membrane proteins, span the entire width of the bilayer. A plasma membrane is selectively permeable allows the passage of some substances but polar molecules such as oxygen, carbon roid hormones pass freely through the me water-soluble substances, such as amino teins, nucleic acids, and many ions, are u through the membrane. Integral proteins port channels through which substances of the membrane to the other. Both into proteins can serve as receptors and enz play major roles in cell-to-cell recognit joining. Cells depend on the selectively perm brane to import substances such as nu hormones and to export substances s ide and other waste products. A cell's

Supreeta N.

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- Ingestion of food particles into cells by the budding of small vesicles from the cell membrane. - The three main components of the cell are: - A human cell without a nucleus is called an enucleated cell. - The membrane that surrounds the cell is called the cell membrane. - The nuclear membrane surrounds the nucleus. - The genetic information encoded in the organelles is responsible for cellular energy. - The digestive organelles of the cell are called lysosomes. - The plasma membrane is made up of phospholipids, proteins, and carbohydrates. - Transmission of hormonal signals from one cell to a neighboring cell in the same organism is required. - The term used for the state of balance is called homeostasis. - Decrease in the size of a cell, tissue, or organ typically occurs as a result of inadequate nutrition, oxygen supply, or hormonal imbalance. - An accumulation of blood-derived brown pigment is called hemosiderin. - A doctor who specializes in studying old age is a gerontologist. - Necrosis is the destruction of cells or tissues by their own enzymes. - The active form of cell death is called apoptosis. - Caseous necrosis is typically found in patients with tuberculosis. - Hypertrophy is an increase in the size of tissues or organs caused by enlargement of individual cells.

Suman K.

Transcript

00:01 Hello students, in this question it is asking about the carbohydrate layer which includes on the plasma membrane which of the following is not true.

00:13 Option d none is correct.

00:15 Bacteriorhodopsin function is option d it is membrane gated channel protein.

00:23 Fluidity to plasma membrane is provided by carbohydrate.

00:28 Enzyme ensures equal distribution of phospholipids through lipids.

00:33 Carbohydrate layer on plasma membrane all options are correct.

00:38 Protein major component of rbc cortex is spectrum.

00:43 Anaplasm pump functions in the way like into and out of the cell.

00:49 C -a -plus pump includes all except out of the cell...