Transportation
... 2. This extra water in the cell sap makes it more ___________, so there is more water in the root hair cell than the neighbouring root cell. 3. Water therefore passes from the root hair cell to the next cell by _________. 4. This process continues in subsequent root cells along the entire root until ...
... 2. This extra water in the cell sap makes it more ___________, so there is more water in the root hair cell than the neighbouring root cell. 3. Water therefore passes from the root hair cell to the next cell by _________. 4. This process continues in subsequent root cells along the entire root until ...
Ch. 27 - ltcconline.net
... 1. About .5 of all prokaryotes are capable of directional movement a. some can move up to 50x own body length per second b. flagella - may be scattered, at one end, or 2 ends 1. rotary 2. .1 as wide as euk. flagella 3. not covered by plasma membrane 4. may move randomly, or exhibit taxis if heteroge ...
... 1. About .5 of all prokaryotes are capable of directional movement a. some can move up to 50x own body length per second b. flagella - may be scattered, at one end, or 2 ends 1. rotary 2. .1 as wide as euk. flagella 3. not covered by plasma membrane 4. may move randomly, or exhibit taxis if heteroge ...
MOLECULES IN CELLS - SITH-ITB
... ◦ H bonding between polar side chains ◦ ionic bonding between charged side chains ◦ hydrophobic and van der Waals interactions ...
... ◦ H bonding between polar side chains ◦ ionic bonding between charged side chains ◦ hydrophobic and van der Waals interactions ...
Tissues & Homeostasis, chap. 31
... Endocrine glands lack ducts, and release hormones into the extracellular fluid, diffuses into capillaries Hormones are chemicals produced in small quantities and transported thru the bloodstream to regulate the activity of other cells ...
... Endocrine glands lack ducts, and release hormones into the extracellular fluid, diffuses into capillaries Hormones are chemicals produced in small quantities and transported thru the bloodstream to regulate the activity of other cells ...
Perth Academy N5 Biology Multicellular Organisms Homework Booklet
... 2. In fowl, the dominant form (R) of one gene determines rose comb shape; single comb shape results from the recessive form (r) of the gene. The diagram below shows the results of two crosses. ...
... 2. In fowl, the dominant form (R) of one gene determines rose comb shape; single comb shape results from the recessive form (r) of the gene. The diagram below shows the results of two crosses. ...
6.4 Gas Exchange
... • To do so there must be a high oxygen concentration and a low carbon dioxide concentration in the alveoli. • A ventilation system makes this possible by getting rid of the carbon dioxide in the alveoli and bringing in more oxygen. ...
... • To do so there must be a high oxygen concentration and a low carbon dioxide concentration in the alveoli. • A ventilation system makes this possible by getting rid of the carbon dioxide in the alveoli and bringing in more oxygen. ...
Chapter 5: Homeostasis and regulatory mechanisms Key questions
... 29 Fetal haemoglobin has a higher affinity for oxygen than adult haemoglobin. If fetal haemoglobin had the same affinity for oxygen as adult haemoglobin, the fetal blood would not be able to take up enough oxygen from the mother’s blood for its needs. Higher oxygen affinity allows this to occur. 30 ...
... 29 Fetal haemoglobin has a higher affinity for oxygen than adult haemoglobin. If fetal haemoglobin had the same affinity for oxygen as adult haemoglobin, the fetal blood would not be able to take up enough oxygen from the mother’s blood for its needs. Higher oxygen affinity allows this to occur. 30 ...
summary sheets - Kinross High School
... 19. Genes exist in two or more forms called alleles. Individuals inherit one allele from each parent and the combination of alleles that they get is called their genotype. One allele is normally dominant over the other allele, which is said to be recessive. Heterozygous individuals have different al ...
... 19. Genes exist in two or more forms called alleles. Individuals inherit one allele from each parent and the combination of alleles that they get is called their genotype. One allele is normally dominant over the other allele, which is said to be recessive. Heterozygous individuals have different al ...
Levels of Organization
... organism alive is divided (division) among the different parts of the body. Each part has a job to do and as each part does its special job, it works in harmony with all the other parts. The arrangement of specialized parts within a living thing is sometimes referred to as levels of organization. Ce ...
... organism alive is divided (division) among the different parts of the body. Each part has a job to do and as each part does its special job, it works in harmony with all the other parts. The arrangement of specialized parts within a living thing is sometimes referred to as levels of organization. Ce ...
Objective 4 - Shiner ISD
... converts light energy into chemical energy. Uses energy from the sun to make food Only in PLANT cells! (photosynthesis) ...
... converts light energy into chemical energy. Uses energy from the sun to make food Only in PLANT cells! (photosynthesis) ...
How are living things organized?
... • Multicellular organisms need more resources than unicellular organisms. • The cells are specialized and must depend on each other for survival of the organism. Copyright © Houghton Mifflin Harcourt Publishing Company ...
... • Multicellular organisms need more resources than unicellular organisms. • The cells are specialized and must depend on each other for survival of the organism. Copyright © Houghton Mifflin Harcourt Publishing Company ...
term 2 cumulative exam review sheet
... What are the 11 systems of the body? Be able to identify the major organs for each system with their function. How does the body maintain homeostasis? ...
... What are the 11 systems of the body? Be able to identify the major organs for each system with their function. How does the body maintain homeostasis? ...
LC Biology Sample Paper 6 HL Solutions
... (iii) Genetic screening: is the testing of a persons DNA to find the presence of altered or defective genes. (3) In favour: It may help in the location and early detection of defective genes which cause diseases like cancers, which on early detection can receive gene therapy to prevent. (3) Against: ...
... (iii) Genetic screening: is the testing of a persons DNA to find the presence of altered or defective genes. (3) In favour: It may help in the location and early detection of defective genes which cause diseases like cancers, which on early detection can receive gene therapy to prevent. (3) Against: ...
File
... Information in a DNA strand can be transcribed to make a strand of mRNA. Describe how this mRNA strand is then used to make proteins. ...
... Information in a DNA strand can be transcribed to make a strand of mRNA. Describe how this mRNA strand is then used to make proteins. ...
EuroDYNA Activities - European Science Foundation
... think that’s a major challenge. It’s not so complicated to address this. We need durable funding of scientific research; we need to maintain and sometimes also improve career opportunities, support institutes where innovation and originality are encouraged and promote communication amongst scientist ...
... think that’s a major challenge. It’s not so complicated to address this. We need durable funding of scientific research; we need to maintain and sometimes also improve career opportunities, support institutes where innovation and originality are encouraged and promote communication amongst scientist ...
Form 3 Biology End Of Term 3 Paper 2
... c) Outline two ways in which gill filaments are modified to perform their functions. (4 marks) ...
... c) Outline two ways in which gill filaments are modified to perform their functions. (4 marks) ...
lecture notes by: professor rodriguez
... ! AFTER SIGNING THIS CONTRACT YOU ARE BOUND TO ______________________THAT IS IN IT. ! WHAT IF YOU DON’T LIKE SOMETHING ON THE SYLLABUS? (PLEASE FIND THE NEAREST EXIT) WHAT IS BIOLOGY? ! BIOLOGY IS THE SCIENTIFIC STUDY OF ____________________________ BIOLOGISTS ARE MOVING CLOSER TO UNDERSTANDING: ! H ...
... ! AFTER SIGNING THIS CONTRACT YOU ARE BOUND TO ______________________THAT IS IN IT. ! WHAT IF YOU DON’T LIKE SOMETHING ON THE SYLLABUS? (PLEASE FIND THE NEAREST EXIT) WHAT IS BIOLOGY? ! BIOLOGY IS THE SCIENTIFIC STUDY OF ____________________________ BIOLOGISTS ARE MOVING CLOSER TO UNDERSTANDING: ! H ...
Mader/Biology, 11/e – Chapter Outline
... a. There are several types of neuroglia in the central nervous system. b. Neuroglia outnumber neurons 50 to 1, and were once thought to only support or nourish neurons. c. Microglial cells support neurons and also phagocytize bacterial and cellular debris. d. Astrocytes provide nutrients and produce ...
... a. There are several types of neuroglia in the central nervous system. b. Neuroglia outnumber neurons 50 to 1, and were once thought to only support or nourish neurons. c. Microglial cells support neurons and also phagocytize bacterial and cellular debris. d. Astrocytes provide nutrients and produce ...
Evolution
... o The idea that as organisms descend over generations, they are modified, or “changed” due to mutations and natural selection – Darwin. The four tenants of natural selection o Genetic variation, overproduction of offspring, survival of the fittest, differential survival and reproduction (over time, ...
... o The idea that as organisms descend over generations, they are modified, or “changed” due to mutations and natural selection – Darwin. The four tenants of natural selection o Genetic variation, overproduction of offspring, survival of the fittest, differential survival and reproduction (over time, ...
Period 2 and 3
... What do you think a MICROBOT is? What do you think it would be used for? ______________________________________________________________________________ ______________________________________________________________________________ _____________________________________________________________________ ...
... What do you think a MICROBOT is? What do you think it would be used for? ______________________________________________________________________________ ______________________________________________________________________________ _____________________________________________________________________ ...
Cell theory
In biology, cell theory is a scientific theory which describes the properties of cells. These cells are the basic unit of structure in all organisms and also the basic unit of reproduction. With continual improvements made to microscopes over time, magnification technology advanced enough to discover cells in the 17th century. This discovery is largely attributed to Robert Hooke, and began the scientific study of cells, also known as cell biology. Over a century later, many debates about cells began amongst scientists. Most of these debates involved the nature of cellular regeneration, and the idea of cells as a fundamental unit of life. Cell theory was eventually formulated in 1838. This is usually credited to Matthias Schleiden and Theodor Schwann. However, many other scientists like Rudolf Virchow contributed to the theory. Cell theory has become the foundation of biology and is the most widely accepted explanation of the function of cells.The three tenets to the cell theory are as described below: All living organisms are composed of one or more cells. The cell is the most basic unit of life. All cells arise from pre-existing, living cells, by biogenesis.