Biol 141 - Study guides, Class notes & Summaries

Biol 141 Exam Questions with All Correct Answers What is primary transport? - Answer-protein pumps move solutes UP a concentration gradient using ATP hydrolysis What is secondary transport? - Answer-the use of energy stored in an ionic concentration gradient (H+) then moves molecules from low to high concentration Which of the following is true regarding passive transport? - Passive transport requires ATP (energy) - Passive transport includes facilitated diffusion - Passive transport ...

BIOL 141 Exam 1 Questions and Answers | Latest Update | 2024/2025 | 100% Pass What is the primary component of the plasma membrane that contributes to its fluidity? The primary component is phospholipids, which form a bilayer allowing lateral movement and flexibility. How do channel proteins facilitate the movement of substances across the cell membrane? Channel proteins provide a passageway for specific ions and molecules to diffuse across the membrane down their concentration g...

Among the following, the most complex level of organization is shown by a) ribosomes and mitochondria. b) electrons in an atom. c) a goblet cell. d) a contracting deltoid muscle. e) blood - Answer-D 2. An organic molecule could be a) a molecule which has ionic bonds between carbon atoms. b) adenosine triphosphate. c) a molecule such as sodium chloride which ionizes in water. d) one that ionizes in water to release H+. e) described by b) and d - Answer-A 3. Which of the following is i...

Morula - Answer--Solid ball of 16-32 cells Early Blastocyst - Answer--Blastocyst Cavity -Trophoblast -Inner cell mass 9-12 Day Blastocyst - Answer--Amnion -Amnion Cavity -Chorion -Embryonic Disk -Epiblast -Hypoblast 20 Day Embryo - Answer--Amnion -Amnionic Cavity -Chorion -Chorionic Villi -Embryo -Umbilical chord -Yolk sac Embryonic Membranes - Answer--Amnion -Amnionic Cavity -Chorion -Chorionic Villi -Yolk Sac1. Chorionic Villi 2. Yolk sac 3. Umbilical Cord 4. Amnionic C...

the circulatory system includes - Answer-heart, blood vessels, blood, lymphatic system what type of system is the circulatory system - Answer-closed circulatory system Function of circulatory system - Answer-1. transport gases, hormones, lymph, nutrients, and waste 2. protect against disease and fluid loss what are the 4 chambers of the heart - Answer-right atrium left atrium right ventricle left ventricle right atrium (function) - Answer-receives deO2 blood from the superior & inferior ...

gonads (testes/ovaries) - produce gametes + hormones ducts - transport & store gametes accessory glands - produce secretions that support gametes major structure found in both female and male? - gonads male reproductive system structure - gonads, ducts, penis, assessory glands Gonads are the - testes where is the gonads located? - within the scrotum (skin + CT) what is gonads surrounded by? - 2 tunics 2 tunics of testes - tunica vaginalis and tunica albuginea tunica vaginalis - outer la...

BIOL 141 Exam #2 Study Guide Questions And Answers A+ Review Eukaryotic vs Prokaryotic - Correct Answer->Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. Differences in cellular structure of prokaryotes and eukaryotes include the presence of mitochondria and chloroplasts, the cell wall, and the structure of chromosomal DNA. Significance of surface area to volume ratio and square-cube law for determining cell size - Correct Answ...

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This is a comprehensive and detailed note on chapter 22;Evolution, Natural Selection, Mass Extinctions for Biol 141. * Essential!! * A vital resource!! * For you, at a price that's fair enough!!