Biol 141 - Study guides, Class notes & Summaries

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...

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 ...

Comprehensive and detailed Final exam summary for Biol 141. *Essential!! *For effective final exam prep!! *For you,at a price that's fair enough!!

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...

Detailed and Comprehensive Study guide on Unit 1 for Biol 141.

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 ...

BIOL 1410- Final Exam Questions and Answers | Latest Version | 2024/2025 | Graded A+ Describe the role of surfactant in the respiratory system. Surfactant reduces surface tension within the alveoli, preventing collapse and ensuring efficient gas exchange during breathing. How do the kidneys maintain acid-base balance in the body? The kidneys regulate acid-base balance by excreting hydrogen ions and reabsorbing bicarbonate, helping to maintain blood pH within a narrow range. Wh...

BIOL 1410 Lab Exam Questions and Answers | Latest Update | 2024/2025 | 100% Verified What is the role of epithelial tissue in the human body? Epithelial tissue covers body surfaces, lines internal cavities, and forms glands, functioning in protection, secretion, absorption, and filtration. How do you properly prepare a slide for observing plant cells under a microscope? To prepare a plant cell slide, obtain a thin sample, place it on the slide, add a drop of water or staining sol...