yes Flashcards
compare and contrast Prokaryotic and Eukaryotic cells
The most fundamental difference is that eukaryotes do have “true” nuclei containing their DNA, whereas the genetic material in prokaryotes is not membrane-bound. While prokaryotes are always unicellular organisms, eukaryotes can be either unicellular or multicellular.
how the development of technology has impacted our knowledge and
understanding of cell structure.
technologies like the microscope allowed scientists to see cells, bacteria, and many other structures that are too small to be seen with the unaided eye.
functioning of enzymes
Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.
structural organisation of living organisms.
organelle, cells, tissues, organs, organ systems, organisms
open and closed circulatory systems in animals
The open Circulatory System is the system that is primarily found in invertebrates. Here, the blood flows freely through cavities and there are no vessels to conduct the blood. Closed Circulatory System: is the system that is found in vertebrates and a few invertebrates like earthworms.
explain how an organism can be considered colonial and not multicellular. E.g
Portuguese man o’war
The difference between a multicellular organism and a colonial organism is that the individual organisms that form a colony or biofilm can, if separated, survive on their own, while cells from a multicellular organism (e.g., liver cells) cannot
ONE imaging technology used to determine plant structure
In a fluorescent microscope, a bright light (excitation light) is used to illuminate the sample, which gives off fluorescence (emission light). In this manner, samples are highly contrasted to the black background as the fluorophore emits a bright-coloured light. this makes the images more clear, allowing us to see the plant structure.
transpiration-cohesion- tension theory.
The cohesion-tension theory postulates that the water ascent in trees is exclusively due to the transpirational pull from continuous water columns in the xylem conduit running from the roots to the leafs
Evolution by Natural Section theory evidence obtained by Charles Darwin and
explain how it supports the Theory of Evolution by Natural Selection
Darwin used multiple lines of evidence to support his theory of evolution by natural selection – fossil evidence, biogeographical evidence, and anatomical evidence.
