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Cell Cycle

Subject: 
Biology
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Biology
Cell Biology
cell cycle
mitosis
Cellular processes
Molecular genetics
Meiosis
Interphase
Cell growth
Cytokinesis
Spindle apparatus
Chromosome
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Cell Growth and Reproduction Cell Reproduction All cells come from preexisting cells. Cell division results in two cells that are identical to the parent cell. New cells are constantly being produced. Scientists noticed certain structures that appeared just before cell division and disappeared after. Chromosomes: structures which contain DNA and become darkly colored when stained For most of a cell?s life, chromosomes exist as chromatin Chromatin: long strands of DNA wrapped around proteins called histones Histones are grouped in bunches called nucleosomes The Cell Cycle Cell cycle: the sequence of growth and division of a cell Two general periods of the cycle: growth and division The majority of a cell?s life is spent in the growth period known as interphase

View of the Cell

Subject: 
Biology
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Biology
Membrane biology
organelles
Cell Biology
Cell membrane
cell
Cytoplasm
Vacuole
Vesicle
Biological membrane
Osmosis
Passive transport
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Chapter 7 A View of the Cell The Discovery of Cells The History of the Cell Theory The first person to record looking at water under a microscope was Anton van Leeuwenhoek. Robert Hooke used a compound light microscope to study cork, the dead cells of oak bark. Matthias Schleiden studied plants under a microscope and concluded that all plants are made of cells. Theodore Schwann studied animal cells and concluded that all animals are made of cells. Rudolf Virchow hypothesized that cells divide to form new cells & all cells come from preexisting cells The Cell Theory: All organisms are composed of one or more cells. The cell is the basic unit of organization of organisms. All cells come from preexisting cells.

The Study of Life

Subject: 
Biology
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Science
Biology
Knowledge
Evolutionary biology
Biologist
evolution
organism
experiment
Adaptation
Species
Microorganism
scientific method
health
Technology

Chapter 1 Biology: The Study of Life I. What is Biology? A. The Science of Biology Biology: the study of life Organism: anything that possess all the characteristics of life B. Characteristics of Living Things All living things Have an orderly structure Produce offspring Grow and develop Adjust to changes in the environment 1. Living things are organized Organization: orderly structure; cells, tissues, organs, organ systems 2. Living things make more living things Reproduction: production of offspring Species: a group of organisms that can interbreed and produce fertile offspring in nature 3. Living things change during their lives Growth: an increase in the amount of living material and the formation of new structures

Questions

Subject: 
Biology
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Cardiovascular physiology
Medical signs
Heart rate
Blood pressure
Biology
Pulse
Exercise physiology
Physical exercise
Medicine
health
exercise

Patrick Sayers 12/3/12 Period 9 Conclusion and Discussion Part 1 1) As exercise occurs, what happens to pulse rate? Exercise causes your heart to work harder to deliver more blood to energy-hungry muscles, which increases your heart rate 2) Exercise causes your heart to work harder to deliver more blood to energy-hungry muscles, which increases your heart rate. When you feel someone's pulse or your own, you are feeling the pressure pulses created by the beating of the heart. The increased pulse rate increased heart rate. Blood flows more vigorously through the body which leads to increase in blood pressure.

AP biology review chapter 6 and 7

Subject: 
Biology
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Biology
organelles
Membrane biology
Cell Biology
Endomembrane system
Tonicity
cell
Vesicle
Osmosis
Turgor pressure
Golgi apparatus
Lysosome
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DO NOT WRITE ON THIS TEST- USE ANSWER DOCUMENT FORM: A 1 AP Biology-Chapter #6 & 7 Review Multiple Choice Identify the choice that best completes the statement or answers the question. 1. All of the following are part of a prokaryotic cell except a. DNA. b. a cell wall. c. a plasma membrane. d. ribosomes. e. an endoplasmic reticulum. 2. The volume enclosed by the plasma membrane of plant cells is often much larger than the corresponding volume in animal cells. The most reasonable explanation for this observation is that a. plant cells are capable of having a much higher surface-to-volume ratio than animal cells. b. plant cells have a much more highly convoluted (folded) plasma membrane than animal cells. c. plant cells contain a large vacuole that

proteins worksheet

Subject: 
Biology
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Chemistry
Biology
Protein structure
Molecular biology
Stereochemistry
Denaturation
Protein
Amino acid
biochemistry
Hemoglobin
Peptide
Protein adsorption
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1 Kingston College Biology CAPE Unit 1 Proteins Worksheet Name: ________________________________ Date: _________________________ 1. Draw a simple amino acid molecule and label each part. [3] 2. Polypeptide chains are formed by ______________ bonding and is added to the _________________________ of amino acid. Use a diagram to show a dipeptide below [4] (make sure you label the bond mentioned above) 3. What type of bonding is responsible for the primary structure of proteins and what is the primary structure? [2] ___________________________________________________________________________________________ ___________________________________________________________________________________________

menstrual cycle

Subject: 
Biology
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Human reproduction
anatomy
Biology
Female reproductive system
Menstrual cycle
Peptide hormones
Recombinant proteins
Sex hormones
Ovulation
Corpus luteum
Luteinizing hormone
Follicle-stimulating hormone
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MENSTRUAL CYCLE Hormone Gland produced by Function Gonadotropin-releasing hormone (GnRH) Hypothalamus stimulates the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the pituitary gland Follicle stimulating hormone (FSH) pituitary stimulates the growth of follicles in the ovaries, which secrete oestrogen Luteinising Hormone (LH) pituitary and works with FSH to cause ovulation and later, the release of oestrogen and progesterone Leutotrophic Hormone (LTH) pituitary initiate secretion of milk by the mammary glands, It also acts to maintain the corpus luteum of the ovary Oestrogen Ovarian follicle hormone secreted by ovarian follicles that stimulates thickening of the uterine wall, maturation of an egg, and

linkage chi-square test

Subject: 
Biology
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Classical genetics
Biology
Statistics
Genetic linkage
Monohybrid cross
Chi-squared test
Dihybrid cross
Dominance
Chi-squared distribution
Genetics
chi-squared
Chromosomal crossover
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1 LECTURE: Linkage & Chi-square test Linkage & Chi-squared Test Outline and Objective 2 ? Accounting for disruptions in expected Mendelian ratios ? Application of the Chi-square test ? Objective: At the end of this lesson you should be able to: 1. Define the term linked gene 2. Differentiate between results obtained from linked genes and non-linked genes in dihybrid crosses 3. Write a null hypothesis 4. Apply the chi-squared test to results observed from crosses LECTURE: Linkage & Chi-square test 3 Review ?We have been looking so far at inheritance of genes on different chromosomes. ? Since humans for example, have thousands of traits, each chromosome must carry a large number of genes.

drugs and alcohol

Subject: 
Biology
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Medicine
Alcohol abuse
health
Drinking culture
Hepatology
Alcohol
Drug addiction
Alcoholism
Hepatitis
Short-term effects of alcohol
Liver disease
Alcoholic beverage

DRUGS & ALCOHOL ?Drug ? a substance that causes a physical or psychological (emotional) change in a person. *Over-the-counter- (non-prescription) *Prescription Drugs ? Dr. written order *Tobacco*Alcohol*Illegal drugs* Herbal*Caffeine*Inhalants ?Effect ? the influence a drug has on the body and the mind or both. ?Drug Use ? taking meds properly and in its correct dosage. ?Drug Misuse ? improper use of a drug ?usually done by mistake ?Drug abuse ? intentional improper use of a drug to alter one's mood, emotion, or state of consciousness. Psychoactive effects of drugs ?Has an effect on a person?s mood or behavior. ?affects brain activity ?What types of drugs are psychoactive? ?Marijuana, LSD, PCP, ecstasy, etc

human reproduction

Subject: 
Biology
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Biology
anatomy
Human reproduction
Endocrine system
Peptide hormones
reproductive system
Neuroendocrinology
Developmental biology
Ovulation
Spermatogenesis
Germ cell
Oogenesis
health

LECTURES 15-16: HUMAN REPRODUCTION 1 Human Reproduction Outline 2 ? Male & female reproductive systems ? Physical Structures and their functions ? Gametogenesis ? Gamete structure & function ? Reproductive endocrinology ? Hormonal regulation of male & female gametogenesis ? The principle of negative feedback ? Pregnancy & development ? Fertilization ? Placenta: structure & function ? Foetal development & factors affecting Objectives - At the end of this lesson you should be able to: 3 1. Describe the male and female reproductive systems 2. State the function of the components of the reproductive system 3. Outline the process of gametogenesis in the male and female systems 4. Describe how gametogenesis is controlled by

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