Phospholipid bilayer Study guides, Class notes & Summaries

Humans produce sweat as a cooling mechanism to maintain a stable internal temperature. Which of the following best explains how the properties of water contribute to this physiological process? - ANSWER The high heat of vaporization of water allows the body to remove excess heat through a phase change of water from liquid to gas A student placed a semipermeable membrane inside a U-shaped channel with two chambers, as shown. The membrane permits the movement of water but not salt. The...

ALevel AQA Biology, AQA ALEVEL BIOLOGY Exam @ 2023...

Cell component responsible for energy production; powerhouse of the cell Answer: Mitochondria QUESTION Organelle responsible for protein synthesis Answer: Ribosomes QUESTION Network of protein filaments that aid in intracellular support, cell movement, and moves organelles. Answer: Cytoskeleton QUESTION The basic unit of structure and function in all living things. Composed of plasma (cell membrane), cytoplasm, cytosol, nucleus, and cy...

AQA AS BIOLOGY Paper 1 Monday 15 May 2023 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. • If you need extra space fo...

Write a few sentences that explain what limits an individual cell from becoming more complex. - Correct answer-Bimolecular machinery and division of labor The paramecium discussed in class contained an organelle called the contractile vacuole. This is the presumed precursor of the: - Correct answer-Kidney In cell Biology what can limit the progress of science? - Correct answer-Technology True or False: In you own multicellular body, cells with different functions have different DNA - Corre...

plasma membrane, cytoplasm, nucleus - Answer- what 3 parts does every cell in the human body have? metabolic life (cellular functions) - Answer- what functions do organelles carry out? processes that include growth, metabolism, replication, protein synthesis, & movement - Answer- what are the metabolic functions? plasma membrane - Answer- made of a phospholipid bilayer embedded w proteins cytoplasm - Answer- semi fluid substance inside the membrane that contains organelles nucleus...

Based on the nomenclature for bacterial genes and proteins, which of these seems like a name for bacterial enzyme malate dehydrogenase? a.) Mdh b.) mdh c.) mdh (italicized) d.) Mdh (italicized) - correct answer a.) Mdh The first person to visualize individual microbes was a.) Antonie van leeuwenhoek b.) Louis Pasteur c.) Robert Koch d.) Robert Hooke - correct answer a.) Antonie van leeuwenhoek What is the correct order of reagents in the Gram stain? a.) Crystal violet, iodin...

Test Bank for Biology, 13th Edition by Peter Raven- Chapter 5 What are the four components of cellular membranes? - CORRECT ANSWER-Phospholipid bilayer Transmembrane proteins Integral membrane proteins Cell surface markers (pg. 89&91) Phospholipid structure - CORRECT ANSWER-Structure consists of Glycerol - a 3-carbon polyalcohol 2 fatty acids attached to the glycerol Nonpolar and hydrophobic ("water-fearing") Phosphate group attached to the glycerol Polar and hydrophilic ("water...

-minuscule, acellular infectious agents carrying DNA or RNA -obligate intracellular parasites CORRECT ANSWER viruses F CORRECT ANSWER T/F viruses have cytoplasmic membranes, cytosol, and organelles virons CORRECT ANSWER when viruses are outside their host they are called what? - possess a protein coat (capsid) that surrounds and protects the nucleic acid (viral genome) CORRECT ANSWER what is the structure of a virus? -shed their protein capsids -exist as naked nucleic acid CORRECT...

BIO-1402- CH. 22 the Origin and History of Life Questions and Answers 100% Pass Cell Theory 1. All organisms are composed of cells 2. Cells are the smallest living things 3. Cells arise only from pre-existing cells What are the required minimal set of macromolecules protobionts must have? 1. Self- replicating lipid vesicles 2. Self-replicating genetic material. Plausible progression of Cells 1. Formation of organic molecules (spontaneous) 2. Formation of organic polymers 3. ...