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IB Biology 175 Questions with 100% Correct Answers | Updated & Verified
- Prüfung • 21 Seiten • 2024
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genotype - ️️the alleles of an organism 
 
phenotype - ️️the characteristic of an organism 
 
dominant allele - ️️an allele that has the same effect on the phenotype when present in both homozygous and heterozygous states 
 
co-dominant alleles - ️️pair of alleles that both affect the phenotype when present in a heterozygote 
 
recessive alleles - ️️an allele that only has an effect on the phenotype when in homologous state 
 
locus - ️️the particular position on homologo...
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IB Biology Exam 2024 with 100% correct answers
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Which structures is found in all prokaryotic cells? - correct answer Ribosomes, Plasmid, Pili. (some only have Flagellum & Cell Wall) 
 
Features found in most plant and animal cells? - correct answer cytoplasm, mitochondria, ribosomes 
 
Size of the diameter for most cells is..? - correct answer 10 m to 100 m 
 
functions of a membrane protein? - correct answer Enzymatic activity, Channels, Cell-to-cell recognition, cell-structure, hormone binding sites. 
 
Why is the genetic code descr...
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IB Biology Exam 2024 with 100% correct answers
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How do you calculate the magnification of a drawing/image? - correct answer Magnification=Image size(with ruler) / Actual size(according to scale bar) 
 
How do you calculate the actual size of a magnified specimen? - correct answer Actual size=Image size(with ruler) / magnification 
 
By which process do potassium ions move through potassium channels in axons? - correct answer Facilitated diffusion 
-at rest, the Na-K+ pump expels Na+ ions out of cell, while K+ are put within 
-when the n...
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IB Biology HL exam 2024 with 100% correct answers
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What are the characteristics common to all forms of life? - correct answer reproduction, carbon, responds to surroundings, Growth and Development, cellular organization, and energy 
 
What are the levels of biological organization from simple to most complex? - correct answer Molecules, cell, tissue, organ, organism, population, community, ecosystem, biosphere 
 
What are the 4 most common types of biological molecules? - correct answer Proteins, nucleic acids, carbohydrates, and lipids 
 ...
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IB Biology HL Exam Review 2024 with 100% correct answers
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Outline the cell theory. - correct answer Living organisms are composed of cells. 
Cells are the smallest unit of life. 
Cells come from pre-existing cells. 
 
Discuss the evidence for the cell theory. - correct answer The nature of scientific theories could be introduced here: the accumulation of evidence that allows a hypothesis to become a theory; whether a theory should be abandoned when there is evidence that it does not offer a full explanation; and what evidence is needed for a theory...
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IB Biology paper 1 exam 2024 with 100% correct answers
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Prokaryote or Eukaryote in paramecium? - correct answer Compartments in the cell indicates that it's a eukaryote 
 
Property of water which makes it suitable for living? - correct answer Thermal 
 
Watson and Crick discovery about DNA - correct answer DNA is double helix 
 
What occurs in meiosis but not in mitosis? - correct answer Homologous chromosomes pair up 
 
Variation within a population - correct answer Fertilization and mutation 
 
properties of stem cells - correct answer ...
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IB Biology Practice Exam 2024 with 100% correct answers
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What are the three main parts of the cell theory? What are some possible exceptions? 
 
Practice Question - correct answer 1. All living things are composed of cells. 
2. Cells are the smallest unit of life 
3. Cells come from pre-existing cells 
 
Exceptions: Viruses: living or not? and amoeba 
 
What are the basic functions of life? What organisms carry out these functions? - correct answer Metabolism, response, homeostasis, growth, reproduction and nutrition. 
 
Unicellular organisms 
 
W...
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IB Biology Test exam 2024 with 100% correct answers
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Which of the following characteristics found in a structure necessarily indicates that it is alive? 
A. the presence of genetic material 
B. the presence of a lipid bilayer 
C. Metabolism 
D. Movement - correct answer C 
 
Which of the following structures are present in both plant and animal cells? 
1. Cell Wall only 
2. cell wall and chloroplast 
3. cell wall and mitochondrion 
4. mitochondrion only - correct answer 4 
 
What is the difference between the structure of all prokaryotes and a...
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IB Biology Practice Exam 2024 with 100% correct answers
- Prüfung • 5 Seiten • 2023
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What are the three main parts of the cell theory? What are some possible exceptions? 
 
Practice Question - correct answer 1. All living things are composed of cells. 
2. Cells are the smallest unit of life 
3. Cells come from pre-existing cells 
 
Exceptions: Viruses: living or not? and amoeba 
 
What are the basic functions of life? What organisms carry out these functions? - correct answer Metabolism, response, homeostasis, growth, reproduction and nutrition. 
 
Unicellular organisms 
 
W...
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IB Biology paper 1 exam 2024 with 100% correct answers
- Prüfung • 7 Seiten • 2023
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Im Paket-Deal erhältlich
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- 7,70 €
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Prokaryote or Eukaryote in paramecium? - correct answer Compartments in the cell indicates that it's a eukaryote 
 
Property of water which makes it suitable for living? - correct answer Thermal 
 
Watson and Crick discovery about DNA - correct answer DNA is double helix 
 
What occurs in meiosis but not in mitosis? - correct answer Homologous chromosomes pair up 
 
Variation within a population - correct answer Fertilization and mutation 
 
properties of stem cells - correct answer ...
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