Answers created by maxxal22

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• Why can the Co2 concentration more than 0.05 percent become damaging for plant photosynthesis?
  
• If a plant cell is placed in a solution and the cell shrivels up, what type of solution was it placed in? How do you know?
  
• How does cell division solve the problems of cell growth?
  
• Which one of following serves as a link between Glycolysis and Citric acid cycle (Krebs cycle) during respiration? Pyruvate or acetyl Co-A (active acetate).
  
• Question #a47c4
  
• Question #bf101
  
• Why does adenine pair with thymine and not cytosine?
  
• Write a short description of how the structure of a protein is formed. Begin your description with a single amino acid and include the terms 'primary structure', 'secondary structure' and 'tertiary structure' in your answer?
  
• In a population that is in Hardy-Weinberg equilibrium, 16% of the individuals show the recessive trait. What is the frequency of the dominant allele in the population?
  
• What is meant by ‘genes’ and ‘allele’?
  
• What are lipids and what are some of their common properties?
  
• How does bacteria grow?
  
• Why is specificity between a receptor protein and a signal molecule important?
  
• Question #6ed36
  
• Can the heart pump without the brain?
  
• What macrophages in the epidermis are part of the immune system?
  
• Question #ecf32
  
• Question #1e769
  
• Question #19b41
  
• What blocks viral replication?
  
• Question #17ead
  
• What is the role of the Electron Transport Chain. What happens to the electrons and H*?
  
• Question #5239a
  
• Question #1ad13
  
• Question #ba6ce
  
• Do our five senses limit what we can perceive in relation to other animals?
  
• What is the catalytic cycle of an enzyme?
  
• Question #8c292
  
• Question #d61ec
  
• Question #bf983
  
• Question #02674
  
• What is the relationship between biological "island" size and the number of species that can live there?
  
• Question #93049
  
• What is chemiosmosis? I can't understand it?? Please answer in an easy way?
  
• Question #b8506
  
• A bacterial cell can divide several times in an hour. Few animal or plant cells can divide as quickly. Why is this?
  
• What are the repetitive sequences at the end of many chromosomes called?
  
• Question #1bf1a
  
• Question #3eb82
  
• Question #9d5dc
  
• Question #bff18
  
• What gives blood its red color?
  
• Question #04524
  
• How are the long DNA molecules found in eukaryotes packed into short chromosomes?
  
• Can the plant's cell wall burst if it is too full of water molecules? If so, why, how, and what would the plant and an individual cell look like? Also, is that why cut flowers wilt and die?
  
• Question #b6e83
  
• Question #9bb90
  
• Question #e0439
  
• What kinds of materials may be prevented from passing through a cell membrane?
  
• When a diploid female plant is crossed with a tetraploid male,the ploidy of endosperm cells in the resulting seed is?
  
• Question #bb6fc
  
• Question #19e43
  
• Question #ecffb
  
• Question #4c25a
  
• Is genetically modified food ethical?
  
• How are proteins created?
  
• What is produced by stamens, the male part of a flower?
  
• Question #77480
  
• Question #2cf25
  
• Mention the type of biomolecule for each of the following? Lactose - Tryptophan - Olive oil - Guanine - Insulin
  
• Question #28f32
  
• When solute molecules pass through the membrane passively using a carrier protein, it is referred to as what?
  
• What is an important evolutionary feature of the diploid condition?
  
• Question #f71f9
  
• Question #2d0d7
  
• What molecule is a reactant in the first step and a final product in the fourth step of the Calvin Benson cycle?
  
• Question #eaa07
  
• During which phase of reproduction does everything begin to line up before the cell can begin to split apart?
  
• What is the characteristic of C3 Plants versus C4 Plants?
  
• Question #ec413
  
• What does the lock and key hypothesis state?
  
• Question #bf4d9
  
• Question #58692
  
• Question #2f381
  
• How do you show the breakdown of a phospholipid into its components?
  
• Question #47b3e
  
• How does sexual reproduction affect gene frequency?
  
• How do mRNA, tRNA and rRNA work together in translation to build protein?
  
• Question #8394f
  
• Which theory was developed based on observations made on the Galápagos islands?
  
• What do you call a protein that catalyzes reaction?
  
• Question #d99c1
  
• Question #da8d2
  
• Does heartbeat depend on the brain?
  
• Explain how molecule 1 can be synthesised using molecule 2 as a template? Also, what is the name of this process?
  
• Why does plants store food reserve in the root in the form of amylum instead of glucose?
  
• A little confusion; How do you represent hydrolysis in a chemical equation?: by writing H2O or H3O+
  
• What monomers combine to make lipids?
  
• Proteins are constructed using how many different amino acids?
  
• Question #7f0a9
  
• Question #924dc
  
• Question #7a91e
  
• Question #2af7f
  
• What are the positive and negative effects of light on animals?
  
• Some viruses attack cells by inserting their own DNA into the host cells' DNA. Why might it be simpler for these viruses to attack prokaryotic cells than eukaryotic cells?
  
• What would be the allele combinations in the gametes or sex cells of a parent that has the genotype TtAA? What would be the allele combinations in the gametes or sex cells of a parent that has the genotype AaBb?
  
• Question #12e10
  
• When a muscle cell demands energy to perform its work of contraction, what happens to ATP?
  
• How does the median differ from the mode?
  
• How does cyclic electron flow differ from noncyclic electron flow?
  
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