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Homework Questions – Unit 1 – Biochemistry
... continue to function normally. This steady state inside a cell is called homeostasis. It is important to cells in order for them to function properly and do their jobs. 6. Diffusion allows for the effective movement of substances over short distances. How is this important for the cell? Cells ...
... continue to function normally. This steady state inside a cell is called homeostasis. It is important to cells in order for them to function properly and do their jobs. 6. Diffusion allows for the effective movement of substances over short distances. How is this important for the cell? Cells ...
Semester 2 Final Review
... If a dog has a genotype of Bbbb, what are the possible combinations of genotypes that could be present in a gamete? 41. How can a lethal disease be passed from generation to generation? 42. Are mutations good/bad/both and are they natural or unnatural? 43. Explain why human males determine the sex o ...
... If a dog has a genotype of Bbbb, what are the possible combinations of genotypes that could be present in a gamete? 41. How can a lethal disease be passed from generation to generation? 42. Are mutations good/bad/both and are they natural or unnatural? 43. Explain why human males determine the sex o ...
Chemical Compounds Overview
... b. Polarity/Solvent- Universal solvent. Can easily dissolve chemicals. c. Chemical reactivity- Helps in chemical reactions. For example, hydrolysis reactions need water to break down other molecules. d. Cushioning- Protective cushion in human body. For example, cerebrospinal fluid forms cushion arou ...
... b. Polarity/Solvent- Universal solvent. Can easily dissolve chemicals. c. Chemical reactivity- Helps in chemical reactions. For example, hydrolysis reactions need water to break down other molecules. d. Cushioning- Protective cushion in human body. For example, cerebrospinal fluid forms cushion arou ...
Cell Structure Vocabulary
... 10. Organelle- A structure within eukaryotic cells that carries out specialized functions, including protein building, extraction of energy from nutrients, or storage. Examples of organelles include ribosome, mitochondria, and vacuole. Sentence: _____________________________________________________ ...
... 10. Organelle- A structure within eukaryotic cells that carries out specialized functions, including protein building, extraction of energy from nutrients, or storage. Examples of organelles include ribosome, mitochondria, and vacuole. Sentence: _____________________________________________________ ...
113 things you should know for the living environment regents exam
... 39. The fossil record provides evidence that evolution has occurred. 40. The first living organisms were single celled prokaryotic organisms. 41. The rate at which evolution occurs varies from organism to organism. 42. The allele frequency in a population is the percentage of alleles for a specific ...
... 39. The fossil record provides evidence that evolution has occurred. 40. The first living organisms were single celled prokaryotic organisms. 41. The rate at which evolution occurs varies from organism to organism. 42. The allele frequency in a population is the percentage of alleles for a specific ...
115 THINGS YOU SHOULD KNOW FOR THE LIVING ENVIRONMENT REGENTS EXAM
... 42. The fossil record provides evidence that evolution has occurred. 43. The first living organisms were single celled prokaryotic organisms. 44. The rate at which evolution occurs varies from organism to organism. 45. The allele frequency in a population is the percentage of alleles for a specific ...
... 42. The fossil record provides evidence that evolution has occurred. 43. The first living organisms were single celled prokaryotic organisms. 44. The rate at which evolution occurs varies from organism to organism. 45. The allele frequency in a population is the percentage of alleles for a specific ...
Immune System- Fights Pathogens
... • Travels in the bloodstream until it reaches its specific organ. These organs have target cells that are recognized by hormones. ...
... • Travels in the bloodstream until it reaches its specific organ. These organs have target cells that are recognized by hormones. ...
Is the reason that stem cells can be used to “produce” different types
... which in turn forms compacts chromadatids and finally chromosome. – In the homo sapiens ( human) nucleus there are 23 pairs of chromosomes including sex determinant chromosomes: the X and the Y chromosome. One of the pairs is from the father and the other from the ...
... which in turn forms compacts chromadatids and finally chromosome. – In the homo sapiens ( human) nucleus there are 23 pairs of chromosomes including sex determinant chromosomes: the X and the Y chromosome. One of the pairs is from the father and the other from the ...
Annette Vinther Heydenreich
... immune response) and cytotoxic T-cells (cellular immune response), which is believed to be essential in viral infections like HIV. In order to stop the viral replication at the site of entry, mucosal immunity with high levels of sIgA antibodies can obtained by vaccination at the musosal sites. Effic ...
... immune response) and cytotoxic T-cells (cellular immune response), which is believed to be essential in viral infections like HIV. In order to stop the viral replication at the site of entry, mucosal immunity with high levels of sIgA antibodies can obtained by vaccination at the musosal sites. Effic ...
AP BIOLOGY MIDTERM REVIEW SHEET MRS TERHUNE
... -Be familiar with probability (rule of multiplication and addition) - Know how to complete different types of crosses (monohybrid, incomplete dominance, codominance , sex-linked - Be able to interpret a pedigree - What does a karyotype show? DNA and GENE EXPRESSION Terms: Double helix Compliment/Tem ...
... -Be familiar with probability (rule of multiplication and addition) - Know how to complete different types of crosses (monohybrid, incomplete dominance, codominance , sex-linked - Be able to interpret a pedigree - What does a karyotype show? DNA and GENE EXPRESSION Terms: Double helix Compliment/Tem ...
Respiratory Levels of Organization
... where it will be carried on hemoglobin molecules to the other tissues of the body. Gas exchange at the respiratory membrane is known as external respiration. Gas exchange at between the tissues and the blood is internal respiration. At the molecular level carbon dioxide created during cell metabolis ...
... where it will be carried on hemoglobin molecules to the other tissues of the body. Gas exchange at the respiratory membrane is known as external respiration. Gas exchange at between the tissues and the blood is internal respiration. At the molecular level carbon dioxide created during cell metabolis ...
Carbon-Based Molecules
... Carbon has unique bonding properties Carbon = building block of life because it makes ...
... Carbon has unique bonding properties Carbon = building block of life because it makes ...
Cells & Life Chapter 2 Lesson 1
... cells: • Nucleic acids are macromolecules that form when long chains of molecules called nucleotides join together. Two types: DNA & RNA • Proteins are long chains of amino acid molecules. Proteins are involved in almost everything that happens in a living cell. ...
... cells: • Nucleic acids are macromolecules that form when long chains of molecules called nucleotides join together. Two types: DNA & RNA • Proteins are long chains of amino acid molecules. Proteins are involved in almost everything that happens in a living cell. ...
Macromolecules Notes File
... ______________________________ - coiling and, or pleating of the amino acid chains. (i.e.:α Helix or β Pleat). Stabilized by hydrogen bonds. ...
... ______________________________ - coiling and, or pleating of the amino acid chains. (i.e.:α Helix or β Pleat). Stabilized by hydrogen bonds. ...
AP Biology Unit 1- The Chemistry of Life
... Life’s little compartments: Types of cells and how they work After the last unit, this one may be a little refreshing, since almost all you need to know about this unit can be summarized in a few tables and figures. This unit is about cells Define cell:_______________________________________________ ...
... Life’s little compartments: Types of cells and how they work After the last unit, this one may be a little refreshing, since almost all you need to know about this unit can be summarized in a few tables and figures. This unit is about cells Define cell:_______________________________________________ ...
Activity: Protein Exploration!
... Hydrophobic and hydrophilic sidechains What do you think hydrophobic means? Separate the word hydrophobic into its two parts – hydro and phobic. Hydro refers to water and phobia means dislike or fear, so hydrophobic sidechains “don’t like” (don’t mix with) water. Hydrophobic sidechains are also call ...
... Hydrophobic and hydrophilic sidechains What do you think hydrophobic means? Separate the word hydrophobic into its two parts – hydro and phobic. Hydro refers to water and phobia means dislike or fear, so hydrophobic sidechains “don’t like” (don’t mix with) water. Hydrophobic sidechains are also call ...
The Master Molecule
... The evolution of different species is the result of genetic mutations, which occur in organisms as primitive as bacteria. Bacteria can exchange genes. When grown in a culture medium, they reproduce every 20 or 30 min. Mutations enhance their survival in the face of a harmful environment, such as an ...
... The evolution of different species is the result of genetic mutations, which occur in organisms as primitive as bacteria. Bacteria can exchange genes. When grown in a culture medium, they reproduce every 20 or 30 min. Mutations enhance their survival in the face of a harmful environment, such as an ...
Cell-penetrating peptide
![](https://commons.wikimedia.org/wiki/Special:FilePath/Direct_penetrating_example.png?width=300)
Cell-penetrating peptides (CPPs) are short peptides that facilitate cellular uptake of various molecular cargo (from nanosize particles to small chemical molecules and large fragments of DNA). The ""cargo"" is associated with the peptides either through chemical linkage via covalent bonds or through non-covalent interactions. The function of the CPPs are to deliver the cargo into cells, a process that commonly occurs through endocytosis with the cargo delivered to the endosomes of living mammalian cells.CPPs hold great potential as in vitro and in vivo delivery vectors for use in research and medicine. Current use is limited by a lack of cell specificity in CPP-mediated cargo delivery and insufficient understanding of the modes of their uptake.CPPs typically have an amino acid composition that either contains a high relative abundance of positively charged amino acids such as lysine or arginine or has sequences that contain an alternating pattern of polar/charged amino acids and non-polar, hydrophobic amino acids. These two types of structures are referred to as polycationic or amphipathic, respectively. A third class of CPPs are the hydrophobic peptides, containing only apolar residues, with low net chargeor have hydrophobic amino acid groups that are crucial for cellular uptake.The first CPP was discovered independently by two laboratories in 1988, when it was found that the trans-activating transcriptional activator (TAT) from human immunodeficiency virus 1 (HIV-1) could be efficiently taken up from the surrounding media by numerous cell types in culture. Since then, the number of known CPPs has expanded considerably and small molecule synthetic analogues with more effective protein transduction properties have been generated.