• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Do now! - MrSimonPorter
Do now! - MrSimonPorter

... How to measure pulse • Check your pulse at your wrist. • Use two fingers - your index and middle. • Count how many beats in 20 seconds and multiply that number by three to get your heart rate. ...
Which of the following is a coenzyme associated with
Which of the following is a coenzyme associated with

... Since glucose is a high-energy molecule and its metabolites, CO2 and H2O are low-energy molecules, the breakdown of glucose would be described as an _____ ...
Moss: Non-Vascular Plants
Moss: Non-Vascular Plants

... • Starting with the gametophyte, draw the life cycle of a typical moss 1) Haploid Gametophyte contains archegonium and antheridium (produces haploid eggs and sperm cells through mitosis) 2) When water present, sperm cell swims to fertilize egg cell in archegonium. ...
BIOLOGY EOC PREPRARATION ASSESSMENT SPRING 2013 1
BIOLOGY EOC PREPRARATION ASSESSMENT SPRING 2013 1

... C. The water left behind is generally untreated and therefore people refuse to drink it, leading to problems caused by heat and dehydration. D. People tend to forget to drink enough water when they are in stressful situations which can make any diseases they already have much worse. 35. SC.912.L.16. ...
Chapter 6 Answers Energy and Life Visual Understanding Figure
Chapter 6 Answers Energy and Life Visual Understanding Figure

... 1. You eat a hamburger. Salivary amylase begins to digest the carbohydrates in the bun while you are still chewing. Pepsin works in your stomach to digest the protein, and trypsin is active in your small intestine to break the bonds between specific amino acids. How does the optimum pH for pepsin an ...
p² + 2pq+ q² = 1
p² + 2pq+ q² = 1

... between noncyclic electron flow and cyclic electron flow? ...
5th Grade Science
5th Grade Science

... 6th Grade Science Week 2 Day 2 ...
Xe + Y → X + Ye - Sonoma Valley High School
Xe + Y → X + Ye - Sonoma Valley High School

... concerning glycolysis and oxygen? Concept 9.3 After pyruvate is oxidized, the citric acid cycle completes the energy-yielding oxidation of organic molecules 18. To enter the citric acid cycle, pyruvate must enter the mitochondria by active transport. Three things are necessary to convert pyruvate to ...
Welcome to AP Chemistry! I am glad that you decided to take on the
Welcome to AP Chemistry! I am glad that you decided to take on the

... Princeton Review’s “Cracking the AP Chemistry Exam.” You can also check my webpage under Pre-AP Skills for notes that will help you. If you have difficulty, you are more than welcome to call or email me at any point during the summer at the telephone number or email address below. If I am not at hom ...
Chapter 22: Introduction to Plants
Chapter 22: Introduction to Plants

...  A tough seed coat surrounds and protects the embryo, keeps it from drying out  The embryo begins to grow when conditions are right  Uses nutrients from stored food supply until it can carry out photosynthesis on its own ...
Practice Free Response Question, Biochemistry
Practice Free Response Question, Biochemistry

...  Waxes: Lipids that serve as coatings for plant parts and as animal coverings.  Steroids: Component of animal cell membranes and/or modified to form sex hormones Proteins: 1 point for each of the following (2 points maximum)  Enzymes: speed up chemical reactions  Antibodies: part of the immune s ...
PLANT STRUCTURE AND FUNCTION
PLANT STRUCTURE AND FUNCTION

... Tap root is primarily used for storage of food ...
Phases of Cellular Respiration
Phases of Cellular Respiration

... cellular respiration where oxygen is consumed (an aerobic process) as glucose is broken down into CO2 and H2O. Respiration means breathing but that is not its meaning in this context although the processes are related. Cellular respiration refers to an exchange of gases. In cellular respiration O2 i ...
Spring Semester Exam Review
Spring Semester Exam Review

... Q9. Why do turtles lay more eggs than can survive? (hint: think about what happens to a lot of them as they travel to the ocean after they hatch) OVERPRODUCTION is necessary because natural selection requires that some organisms will be less fit and die off. If there were not more offspring than can ...
test 4 - Northern Illinois University
test 4 - Northern Illinois University

Formation of pyruvic acid (P
Formation of pyruvic acid (P

... The citric acid cycle (TCA) cycle 1- TCA cycle (tricarboxylic acid cycle), also known as the citric acid cycle or the Krebs’ cycle, is the major energy production pathways in the body. *The cycle occurs in the mitochondria. 2- It is a cyclic process. 3-The cycle involves a sequence of compounds int ...
Study Guide and Potential Essay Questions for Chapter 25
Study Guide and Potential Essay Questions for Chapter 25

... hypothermia, Krebs’ cycle (TCA or citric acid cycle), lactic acid (lactate), metabolic rate, metabolic water, metabolism, minerals, mitochondrial matrix and inner membrane, NAD+/NADH + H+, nutrient, oxidation, oxidative phosphorylation, pyruvate-to-acetate step, reduction, substrate level phosphoryl ...
Prokaryotes play vital roles in the movement of carbon
Prokaryotes play vital roles in the movement of carbon

... place. In this case, the cycle is based on one-carbon compounds. In anoxic sediments, prokaryotes, mostly archaea, produce methane (CH4). This methane moves into the zone above the sediment, which is richer in oxygen and supports bacteria called methane oxidizers that oxidize methane to carbon diox ...
I-1 I. Introduction BIOCHEMISTRY = METABOLISM At first you may
I-1 I. Introduction BIOCHEMISTRY = METABOLISM At first you may

... needs, these compounds can be converted back to glucose, a process called gluconeogenesis. In this pathway pyruvate is converted to glucose by a pathway that is similar but not identical to glycolysis (when run in reverse). The excess glucose produced by gluconeogenesis is not accumulated but polyme ...
Biology ECO - Canyon ISD
Biology ECO - Canyon ISD

... true nucleus.  Eukaryotic cells have a membrane bound nucleus where the DNA is located and membrane bound organelles. ...
Cellular Respiration
Cellular Respiration

... Glycolysis is the breaking down of glucose from a 6 carbon molecule into two pyruvate molecules (3 carbons each). This produces a net gain of two ATP and two NADH molecules. Glycolysis occurs in the Cytoplasm of a cell. ...
application/msword
application/msword

Chapter 1 • Lesson 4 Objectives 4
Chapter 1 • Lesson 4 Objectives 4

Bio112_PracticeFinalF16
Bio112_PracticeFinalF16

... 35. Organisms that cannot produce their own food and, therefore, must eat other organisms, are called ____________________. 36. A sequence of organisms, each of which serves as a source of food or energy for the next, is called a(n) ____________________. 37. The major reservoir for nitrogen is the _ ...
Organic Molecules Jeopardy
Organic Molecules Jeopardy

... It can form single, double or triple bonds with other atoms. ...
< 1 ... 271 272 273 274 275 276 277 278 279 ... 544 >

Photosynthesis



Photosynthesis is a process used by plants and other organisms to convert light energy, normally from the Sun, into chemical energy that can be later released to fuel the organisms' activities. This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water – hence the name photosynthesis, from the Greek φῶς, phōs, ""light"", and σύνθεσις, synthesis, ""putting together"". In most cases, oxygen is also released as a waste product. Most plants, most algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis maintains atmospheric oxygen levels and supplies all of the organic compounds and most of the energy necessary for life on Earth.Although photosynthesis is performed differently by different species, the process always begins when energy from light is absorbed by proteins called reaction centres that contain green chlorophyll pigments. In plants, these proteins are held inside organelles called chloroplasts, which are most abundant in leaf cells, while in bacteria they are embedded in the plasma membrane. In these light-dependent reactions, some energy is used to strip electrons from suitable substances, such as water, producing oxygen gas. Furthermore, two further compounds are generated: reduced nicotinamide adenine dinucleotide phosphate (NADPH) and adenosine triphosphate (ATP), the ""energy currency"" of cells.In plants, algae and cyanobacteria, sugars are produced by a subsequent sequence of light-independent reactions called the Calvin cycle, but some bacteria use different mechanisms, such as the reverse Krebs cycle. In the Calvin cycle, atmospheric carbon dioxide is incorporated into already existing organic carbon compounds, such as ribulose bisphosphate (RuBP). Using the ATP and NADPH produced by the light-dependent reactions, the resulting compounds are then reduced and removed to form further carbohydrates, such as glucose.The first photosynthetic organisms probably evolved early in the evolutionary history of life and most likely used reducing agents, such as hydrogen or hydrogen sulfide, as sources of electrons, rather than water. Cyanobacteria appeared later; the excess oxygen they produced contributed to the oxygen catastrophe, which rendered the evolution of complex life possible. Today, the average rate of energy capture by photosynthesis globally is approximately 130 terawatts, which is about three times the current power consumption of human civilization.Photosynthetic organisms also convert around 100–115 thousand million metric tonnes of carbon into biomass per year.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report