Insect exchange surfaces - Study guides, Revision notes & Summaries

WSU Biology 106 exam 4QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES Organisms that rely solely on surface - ANSWER- colonial choanaoflagellate Other small organisms that use their surfaces only - ANSWER- bacteria, microalgae, yeast How can you be bigger than 1mm? - ANSWER- adaptations to enhance gas exchange: circulatory systems and increase surface area Gas exchange structures - ANSWER- Surface only (less than 1mm) Gastrovascular cavity (hydra, jellyfish, flatworms) have incre...

WSU Biology 106 exam 4QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES Organisms that rely solely on surface - ANSWER- colonial choanaoflagellate Other small organisms that use their surfaces only - ANSWER- bacteria, microalgae, yeast How can you be bigger than 1mm? - ANSWER- adaptations to enhance gas exchange: circulatory systems and increase surface area Gas exchange structures - ANSWER- Surface only (less than 1mm) Gastrovascular cavity (hydra, jellyfish, flatworms) have inc...

Students’ Lab Book for AQA AS & A-Level Biology 7401/7402 Covers the complete CPAC requirements for the investigation skills relevant to examinations 2 CONTENTS How to use this Lab Book – notes to teachers 9 - notes to students 12 - Practical and mathematical skills grid 13 Skills development requirements 14 Mathematical requirements & exemplifications 16 Glossary of terms 19 Suggested templates for skills development 21 (research, planning, concluding & evalu...

Leaves - ANSWER The "food factories" of trees are: Photosynthesis - ANSWER This process combines Co2 and water in a reaction driven by light to produce sugars: Transpiration - ANSWER The loss of water vapor from the leaves is called: Stomata - ANSWER Small pores, between guard cells on the undersides of leaves and green plant parts, through which gases are exchanged and water loss is regulated. Xylem - ANSWER Water and dissolved essential minerals are transported within the tree in thi...

AQA A-Level Biology Paper 1 2023 Describe the role of a ribosome in the production of a polypeptide. /3 Ans- 1. mRNA binds to ribosome; 2. Idea of TWO codons/binding sites; 3. tRNA with ANTICODONS binds; 4. (Catalyses) formation of PEPTIDE bond between AMINO ACIDS (held by tRNA molecules); 5. Moves along (mRNA to the next codon); Describe the structure of glycogen. /2 Ans- 1. Polysaccharide of α-glucose; OR polymer of α-glucose; 2. (Joined by) glycosidic bonds OR Branched structure...

AQA A-Level Biology Paper 1 2023 Describe the role of a ribosome in the production of a polypeptide. /3 Ans- 1. mRNA binds to ribosome; 2. Idea of TWO codons/binding sites; 3. tRNA with ANTICODONS binds; 4. (Catalyses) formation of PEPTIDE bond between AMINO ACIDS (held by tRNA molecules); 5. Moves along (mRNA to the next codon); Describe the structure of glycogen. /2 Ans- 1. Polysaccharide of α-glucose; OR polymer of α-glucose; 2. (Joined by) glycosidic bonds OR Branched structure...

Benedict's test - ANSWER Which food test is heated in a water bath? Sucrose - ANSWER Which disaccharide is not a reducing sugar? Test for non-reducing sugars - ANSWER Add acid. Neutralise. Add Benedicts. Heat. Hydrolysis - ANSWER Reaction performed by dilute HCl in the non reducing sugar test. Glucose + fructose - ANSWER During the non-reducing sugar test what is sucrose hydrolysed into? Alpha - ANSWER Which type of glucose makes up starch? amylose and amylopectin - ANSWER Nam...

Diffusion The movement of particles from an area of high concentration to an area of low concentration Cell Membrane An envelope that surrounds the cell and lets substances in and out Particles Everything is made of these and in a liquid or a gas these are free to move around Solution Something can dissolve in a liquid to make this. For example sugar can dissolve in water to give a sugar ___________ Oxygen This gas is needed by all living things for respiration. All cells need this a...

REHS_Big_Practice_Exams 1,2&3 Q&A Updated Spring 23/24. REHS REVIEW BIG PRACTICE EXAM 1: 1. The most important factors in the xmsn of waterborne disease is: A) indirect contact and virulence B) dosage and virulence C) direct contact and dosage D) fomite and pathogen 2. In many jurisdictions, what needs to be issued before a newly constructed building, structure, or business can be opened, used, or occupied? a. Eminent domain b. Deed to the property c. Certificate of use or occupanc...

CONTENTS How to use this Lab Book – notes to teachers 9 - notes to students 12 - Practical and mathematical skills grid 13 Skills development requirements 14 Mathematical requirements & exemplifications 16 Glossary of terms 19 Suggested templates for skills development 21 (research, planning, concluding & evaluating) Data Tables 27 Significant figures 28 Uncertainties 29 Graphs/Bar Charts/Histograms 32 Biological drawings 41 Statistical tests 43 PART 1 AS and A-Level Investigati...