Bioscience - Study guides, Revision notes & Summaries

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Which organelles are involved in nuclear division correct answers centrioles What's the main constituent of a cell membrane by surface area correct answers phospholipids A cell membrane allowing some materials to pass through freely whilst preventing others correct answers selectively permeable. What's the correct definition of osmosis correct answers movement of water molecules from a low solute concentration to a high solute concentration through a selectively permeable membrane. ...

AnatomyC correct answers Study of body structures Gross anatomy correct answers Study of large body structures visible to the eye—e.g. heart, lungs. Microscopic anatomy correct answers Study of structures too small to be seen by the eye and instead are viewed using a microscope. Physiology correct answers Study of body functions and relates to the operation of specific organ systems. Structural level of organisation correct answers Chemical Cells Tissues Organs Organ sy...

First line of defence correct answers the external body membranes -intract skin and mucosae. second defence correct answers called into action whenever the first line has been penetrated, relies on internal defences such as antimicrobial proteins, phagocytes and other cells to inhibit the invaders spread throughout the body, this is where inflammation happens. Innate (nonspecific) defense system correct answers Is always prepared, responding within minutes to protect the body from foreign ...

Which kind of chemical reaction involves the attachment or removal of a phosphate group? a. Oxidation-reduction b. hydrolysis c. phosphorylation Which of the following statements about biological evolution is false? a. individual organisms evolve b. biological populations change over time c. evolutionary change has been observed in laboratory experiments d. evolutionary change has been observed in natural populations. e. All of the above is true correct answers a Which of the fo...

density of water as a solid - ️️is less dense than liquid because the hydrogen molecules are spread away from each other Hydrogen bonding includes - ️️solvent versatility, cohesion, adhesion, specific heat, temp. moderation and denisty as a solid What are the three domains to life - ️️Archaea, bacteria, and eukarya Which are prokaryotic and what are their defining features - ️️Archaea and bacteria. single celled organisms containing no nucleus or membrane bound organelles ...

A localized group of organisms that belong to the same species is called a A) biosystem. B) community. C) population. D) ecosystem. E) family. correct answers C) population Organisms interact with their environments, exchanging matter and energy. For example, plant chloroplasts convert the energy of sunlight to A) the energy of motion. B) carbon dioxide and water. C) chemical energy. D) oxygen. E) kinetic energy. correct answers C) chemical energy The main source of energy for pr...

A plant that has purple flowers is crossed with one that has white flowers. The offspring were half white and half purple. What were the genotypes of the parents? A. Pp x pp B. Pp x Pp C. PP x pp D. PP x WW correct answers A. Pp x pp Incomplete dominance is associated with what genotypic ratio in the F2 generation for a monohybrid cross? A. 3:1 B. 1:2:1 C. 9:3:3:1 D. 1:1 E. 1:3 correct answers B. 1:2:1 Gel electrophoresis separates DNA strands on the basis of A. amount of nucl...

What is the human genome? correct answers a composite genome derived from multiple donors How many nucleotides are in the human genome? correct answers 3 billion What percentage of gene encoding areas are covered by the Human Genome? correct answers 1-2% What does a complete genome contain? correct answers all the genetic material of an organism What is the central dogma in molecular biology? correct answers DNA is transcribed into RNA and is translated into protein What is the es...

HBS 109- Bioscience Applied to Nursing 2 Axial skeleton consists of: - Skull - Vertebral column: The cervical vertebrae support the weight of the head and neck, while the lumbar vertebrae support the weight of the trunk, head and neck. Protects the spinal cord The cervical spine offers the greatest movement capabilities (flexion, extension, rotation, lateral flexion). The thoracic spine is more stable, but permits rotation with limited flexion and extensions. The lumbar spine allows so...