Bio201l lab exam - Study guides, Class notes & Summaries

”1. Compare and contrast diffusion and osmosis.” Diffusion occurs when molecules move from a higher concentration to a lower concentration until a stable state is established. The molecules are free to circulate until they reach a state of equilibrium. While in Osmosis, molecule movement isn't always free but rather selective due to the presence of a semipermeable membrane that allows only the most effective solvent molecules to pass through. ”2. What is the water potential of an op...

Write a description next to each of the following terms to help you remember them: a. Transverse plane Horizontal plane. Divides the body into top and bottom sections. b. Sagittal plane Vertical plane. Side view. Cuts body into right and left sections. c. Midsagittal plane Divides the body into equal left and right sides. d. Coronal plane Vertical plane. Divides body into anterior and posterior. 2. Identify the major organs that are contained in each cavity listed below. Indicate wheth...

Pre-Lab Questions ”1. What are chromosomes made of?” Chromosomes are made up of proteins and DNA that are organized into genes. There are normally 23 pairs of chromosomes in each cell. ”2. Compare and contrast mitosis and meiosis. ” Mitosis:happens in 4 stages plus interphase in somatic cells. Produces 2 diploid daughter cells and the chromosome number stays the same. Meiosis:happens in 8 stages plus interphase in germ cells. Produces 4 haploid daughter cells and the chromosome i...

”1. What is the primary function of the nervous system?” To gather and process sensory signals from exernal environments and internal input from our body. ”2. Why does the cerebral cortex contain so many folds? ” To increase it’s surface area. ”3. What is a nerve impulse? ” A signale sent from the axon terminal down nerve fibers. It has a wave of electrical deplorzation that reverse potential difference across neve cell membranes. ”4. What are Schwann cells and what do th...

”1. What is a tissue?” A tissue is a subcategory of specialized cells and their matrix that work together and make up different organs and carry out a specific function.” 2. What is the function of epithelial tissue? ” This tissue provides a barrier between the organs it covers and the external environment” 3. What is the function of connective tissue? ” Connective tissue holds organs together and gives them their shape. ” 4. What is the function of muscular tissue? ” Mus...

What is the function of the endocrine system?” Is a network of glands that produce and release hormones that help control many important functions. ”2. Research two types of hormones and describe the mode of action for each. ” Adrenaline is secreated by the adrenal glands, its purpose is to increase blood pressure, heart rate, and metabolism in reaction to stress. Estrogen is released by the ovaries, its purpose is to regulate menstrual cycle, maintain pregnancy and develop female se...

“1. Identify the major similarities and differences between prokaryotic and eukaryotic cells. “ Similarities: Both prokaryotic and eukaryotic cells contain chromosomes, ribosomes, and vacuoles. Differences:Eukaryotic cells contain a nucleus. Eukaryotic cells are typically in animals and prokaryotic cells are typically plants and bacteria. “2. Where is the DNA housed in a prokaryotic cell? Where is it housed in a eukaryotic cell? “ In a prokaryotic cell DNA is housed within the cy...

Page path  BIO201L LAB ONLY_V2  Lab 1 Introduction to Science Started on Tuesday, March 29, 2022, 1:30 PM State Finished Completed on Tuesday, March 29, 2022, 1:41 PM Time taken 11 mins 16 secs Grade 28.00 out of 35.00 (80%) Feedback You’re off to a good start. A course grade of 70% is required to request a transcript. You’ve reattempt for a higher grade you can retake this assessment. Study hard for each exam, Remember that 10 hours of tutoring are provided to you through you...