Biology

• arrangement of layers resulting from secondary growth in woody dicot tissues tissues from outside going in- bark,vascular cambium, sapwood, heartwood
• in this intermediate step the formation of oxaloacetic acid from the reaction of CO2 and phosphoenol pyruvate carboxylase occurs in the mesophyll
• during a blood clothing an enzyme is activated and causes the creation of the sticky polypeptide fragments that form a tight mesh across the wounded surface, what do you call the inactive fform of the said enzyme- prothrombin
• what are the factors [ in terms of concentration in the blood]are the primary stimuli which can increase breathing rate

  • increased CO2
  • increased in H
• if phartogenesis is possible for mammal, what would be the most likely result of the offspring-haploid female
• difference between start codon and stop codon- a start codon also codes amino acid whereas stop codon does not
• In meiosis, where are paired homologous chromosomes attached?

  chiasmata
• ingestion of bacteria in WBCs is an example of what?

  phagocytosis
• phospohorylation of glucose yields glucose, 6 phosphate and ADP
• evolution occurs in mainly in what level of biological organization?

  population
• the chloroplast's outer and inner membranes. which lie side by side enclose a space filled a water solution, what is this space and the semiliquid called?

  stroma
• in some plant species, the accumulation of H ions outside the guard cells happens when?

  the guard cells are turgid and the stoma is open
• what causes water to be the most effectively transported upwards through the xylem- water potential
• during what part of the cell cycle are proteins synthesized?

  G1 phase
• order of the resultant molecules as the cake is broken down?

  pyruvate, glucose, acetyl-CoA, and CO2
• What is the site of spermatogenesis?

  seminiferous tubule
• an immunoglobulin is also called a/an- antibody molecule
• which biome has the highest productivity of all ecosystems and shows a high diversity of species present- tropical rainforest
• what do you call the acquisition of the same similar characters in two or more related lineages without these characters being present in a common ancestor- parallel evolution
• hormone that promotes cells division

  • auxin
  • cytokinin
• correct sequence in a reflex arc/spinal reflex?

  receptor, sensory neuron, dorsal root, interneuron, ventral root, motor neuron, effector