AQA A level biology essay plans Comprehensive Questions and Answers 100% Accuracy|The importance of ions in biology| The importance of ions in biology, The importance of the applications of the study of genes and DNA, Water and the regulation of water content are important to organisms, Importance of receptors in living organisms. Importance of bonds and bonding.....

AQA AS Level Biology Paper 1

BIOL 1408: UPDATED 2023/2024 Practical I (1408 online) Review General Tips • Studying consistently over a period of days is much more effective than pulling an all-nighter before the practical. • There are lists of learning objectives at the beginning of each lab to help guide you to important concepts. • Review Module videos. • Review your graded lab worksheets. • You will not be asked to “run” experiments. You should be able to interpret results (graphs), identify lab equ...

BIOL 1406 STUDY GUIDE: Lecture guide and Exam 1 review What is matter and what are elements? What are the 4 most common types of elements in living things? *Matter is anything that takes up space & has mass. *Elements are substances that cannot be broken down to other substances by chemical reactions *The four most common elements in living things are Oxygen, Hydrogen, Nitrogen, & Carbon What are the 3 major components of an atom and their respective charges? Neutron (No charge) Proton...

2023/2024 AQA GCSE BIOLOGY PAPER 2: EXAM AND STUDY GUIDE/PREPARATION What is homeostasis? – ANSWER: Homeostasis is the maintenance of a constant internal environment in order tomaintain optimum conditions for enzyme and cellular function. Give examples of conditions maintained by homeostasis in the body - ANSWER ● Blood glucose concentration ●Body temperature ●Water levels What two types of responses are used in body control systems? – ANSWER: Nervous and chemical What thr...

QUESTIONS AND ANSWERS

QUESTIONS AND ANSWERS

1.1 Plants move mineral ions: • from a low concentration in the soil • to a high concentration in the root cells. What process do plants use to move these minerals ions into root cells? [1 mark] Tick one box. Active transport Diffusion Evaporation Osmosis - ANSWER-Active Transport 1.2 Describe how water moves from roots to the leaves - ANSWER-by transpiration stream / pull in xylem 1.3 Plants lose water through the stomata in the leaves. The epidermis can be peeled from a ...

What is homeostasis? Homeostasis is the maintenance of a constant internal environment in order to maintain optimum conditions for enzyme and cellular function. Give examples of conditions maintained by homeostasis in the body ● Blood glucose concentration ● Body temperature ● Water levels What two types of responses are used in body control systems? Nervous and chemical What three components do all control systems have? ● Receptors ● Coordination centres

Answer all questions in the spaces provided. box 0 1 . 1 What is a gene? [1 mark] 0 1 . 2 Describe how the production of messenger RNA (mRNA) in a eukaryote cell is different from the production of mRNA in a prokaryote cell. [2 marks] 0 1 . 3 Scientists produced a short, single-stranded, artificial nucleic acid, called PNA. The PNA binds to a small section of DNA. The scientists introduced PNA into cells and discovered that these cells produced less mRNA than cells that did not contain ...