Nutrition, Metabolism, and Temperature Regulation We are often more concerned with the taste of food than with its nutritional value when choosing from a menu or when selecting food to prepare. Knowing about nutrition is important, however, because food provides us with energy and the building blocks necessary to synthesize new molecules. What happens if we don't obtain enough vitamins, or if we eat too much sugar and fats? Health claims about foods and food supplements bombard us every day. Which ones are ridiculous, and which ones have merit? This chapter explains nutrition (p. 932), metabolism (p. 940), carbohydrate metabolism (p. 942), lipid metabolism (p. 949), protein metabolism (p. 950), interconversion of nutrientmolecules (p. 952), metabolic states (p. 953), metabolic rate (p. 955), and body temperature regulation (p. 956).
AP Biology Labs and Handouts « School Without Walls Biology Here you will find the labs and handouts for AP biology. Many of the links will be to external sites. Credit is given to original authors when possible. Online lab resources LabBench hosts online labs with prelabs. Online reading guides and notes Lynn Miriello has put together the reading guides we will be using in class. The vascular system. The movement of blood through the vessels – Visual TA The system of arteries. Le système des artères. El sistema de las arterias. Das System von Arterien. Anatomy and regulation of blood vessels. Diagram of arteries, veins, and capillaries. Structure aorta: 1. Cross-section through a human artery of the elastic type: 1. Anatomy of the arterial wall. The structure of the vein. Scheme venous valve. Video of the venous valves in action. Capillaries – the vessels of blood microcirculation. Like this: Like Loading...
Explore Biology | AP Biology Teaching & Learning Resources Welcome! Here you will find links to my lecture presentations. These are posted just before or right after the class lecture.Students: I have linked directly to the Powerpoint files so you can download them and view them at home. Teachers: I have linked directly to the Powerpoint files so you can download them and use them in your classroom. If you want to edit them you may do that. Introductions Welcome to AP Biology! AP Biology is a rigorous, demanding, stimulating, rewarding course. Biology is an ever-expanding body of knowledge and there are too many details to memorize it all, so we need to create a framework of over-arching themes upon which to organize new knowledge. Unit 1 Evolution A Darwinian view of life! Our introduction to Darwin the man & the scientist, his ideas, and the inspiration for them. Let's delve deeper into how natural selection acts on individuals. What evidence supports this Darwinian view of change over time? How do new species arise? Unit 2 Classification Animals
A simple model for natural selection In this simple procedure, grains of rice are used to model small organisms, and students act as predators selecting food during limited time spans. Over a number of generations, the proportion of grains of rice of each colour in each population will change if students select one colour in preference to another. This is a simple model for natural selection resulting from predation. Picking out the grains from each tub of vermiculite should only take a couple of minutes each generation. Download the spreadsheet Calculating record sheet for model for selection (19 KB) Tub of stained horticultural vermiculite, to which about 50 grains of rice stained the same colour, and about 50 grains of rice stained with a different colour have been added Forceps Petri dish Stop watch Plastic containers (such as empty ‘spread’ tubs) Horticultural vermiculite coloured with food colouring (Notes 1 and 2) Long grain rice (dyed in assorted colours with food colouring – Note 2) Preparation Investigation
AP Biology Investigative Labs Supplement to the first printing: This Supplement to the First Printing of the lab manual includes updated URLs, corrections, clarifications, sample data tables for Investigation 7, and an updated version of the AP Biology Equations and Formulas appendix. The second printing of the Teacher Manual, available for download below, incorporates these changes. The second printing of the Student Manual, available through the College Board store, has also been updated. Each PDF below contains the teacher edition (blue banner), followed by the student edition (red banner). The teacher edition and student edition can also be purchased from the College Board Store. You may download the second printing of the full AP Biology Teacher manual (.pdf/19.2MB), which includes the Student manual. Many files on AP Central are saved in Adobe® PDF format.
Προτεινόμενα θέματα για εξάσκηση Είσοδος Εγγραφή Προτεινόμενα Θέματα Πανελληνίων εξετάσεων Προτεινόμενα Θέματα Πανελλαδικών εξετάσεων Γενική Παιδεία Νεοελληνική Γλώσσα (Θέματα-2014α | Θέματα-2014β | Θέματα-2013α | Θέματα-2013β)Μαθηματικά και Στοιχεία Στατιστικής (Θέματα-2014α | Θέματα-2014β | Θέματα-2013α | Θέματα-2014β)Βιολογία (Θέματα-2014α | Θέματα-2014β | Θέματα-2013α | Θέματα-2013β)Φυσική (Θέματα-2013)Ιστορία (Θέματα-2014α | Θέματα-2014β | Θέματα-2013)Αρχές Οικονομικής Θεωρίας (Θέματα-2014α | Θέματα-2014β | Θέματα-2013α | Θέματα-2013β) Θεωρητική Κατεύθυνση Λογοτεχνία (Θέματα-2014α | Θέματα-2014β | Θέματα-2013α | Θέματα-2013β)Ιστορία (Θέματα-2014α | Θέματα-2014β | Θέματα-2013α | Θέματα-2013β)Αρχαία Ελληνικά (Γνωστό-2014α - Άγνωστο-2014α | Γνωστό-2014β - Άγνωστο-2014β | Γνωστό-2013α - Άγνωστο-2013α | Γνωστό-2013β - Άγνωστο-2013β)Λατινικά (Θέματα-2014α | Θέματα-2014β | Θέματα-2013α | Θέματα-2013β) Θετική Κατεύθυνση Τεχνολογική Κατεύθυνση Σχετικά Άρθρα Εκπαίδευση Τεχνολογία Δελτία Τύπου Άρθρα Ιδιωτικά σχολεία Προπτυχιακά
The Loom Your hands are, roughly speaking, 360 million years old. Before then, they were fins, which your fishy ancestors used to swim through oceans and rivers. Once those fins sprouted digits, they could propel your salamander-like ancestors across dry land. Fast forward 300 million years, and your hands had become fine-tuned for manipulations: your lemur-like ancestors used them to grab leaves and open up fruits. Within the past few million years, your hominin ancestors had fairly human hands, which they used to fashion tools for digging up tubers, butchering carcasses, and laying the groundwork for our global dominance today. We know a fair amount about the transition from fins to hands thanks to the moderately mad obsession of paleontologists, who venture to inhospitable places around the Arctic where the best fossils from that period of our evolution are buried. A team of Spanish scientists has provided us with a glimpse of that story. Both fins and hands get their start in embryos.