BIO 1010 Exam 1 2024 study guide fully solved & verified for accuracy

Only living organisms have any of the characteristics of life. True or False? False Which of the following is the best definition of homeostasis? A living organism maintaining a relatively stable internal environment Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:00 Full screen Both plants and animals exhibit response to stimuli. True or False? True CO2 + H20 ---> C6H12O6 + O2 The above chemical equation represents Photosynthesis Which of the following are inputs in cellular respiration? Both oxygen and glucose Which term is used to describe the living and non-living components of a forest? Ecosystem The most basic level in the biological hierarchy which demonstrates the quality of life. Cell A cow obtains its energy by _________. In this way, the cow acts as a _____________. eating grass, consumer Which of the following is not a domain? Animalia You see a cockroach in the stairwell at Chattanooga State. You immediately think that this organism has which type of nutrition? Consumer A scientific hypothesis is An educated guess explaining an observation Place the following list in order starting at the beginning of the scientific process 1. make observations 2. ask a question 3. formulate a hypothesis 4. design and carryout an experiment to test your hypothesis 5. collect data 6. draw conclusions to see if your data support your hypothesis 7. report your findings Matter occupies _____ and has _____. Space, mass All of the following are examples of the four major elements contributing to 96% of the human body mass except iodine How an atom behaves when it comes in contact with other atoms is determined by its electrons Most hydrogen atoms have one proton. However, some hydrogen atoms have one or two neutrons also. These atoms of hydrogen would be isotopes Fluorine atoms tend to take electrons from atoms that come near. As a result, fluorine atoms tend to from ionic bonds A covalent chemical bond is one in which Outer shell electrons are shared by two atoms as to satisfactorily fill the outer electron shells of both. Potassium is usually written as K+. The positive charge on the potassium ion means that potassium has lost an electron and is a cation. Which particles have approximately the same size and mass as each other? Protons and neutrons You should expect to find which particles in the nucleus of an atom? Protons and neutrons Electrons have _____ charge and are found _____ the nucleus of an atom. Negative, outside Oxygen has an atomic number of 8, therefore, it must have 8 protons The atomic number of carbon is 6. How many electrons would be in the outer shell of a carbon atom? 4 The atomic number of neon is 10. How many electrons would be in the outer shell of a neon atom? 8 How many electrons could fit in the first (innermost) shell of an atom? 2 A pH of 3 is ___________________ times more acidic than a pH of 6. 1000 A solution that has a pH of 2 could best be described as being: acidic What type of bond holds oxygen and hydrogen together within this single water molecule? polar covalent Which is more positively charged in H20? hydrogen Which of the following is the best definition for cohesion? water molecules attracted to one another Salt, NaCl, forms because of the different charges between the sodium and chloride ions. What type of bond is this? ionic An ionic bond is one in which two charged atoms have a mutual attraction due to electron transfer. An ion is formed when an atom gains or loses one or more electrons Which of the following focuses the light to a point where the object is located? Condenser If the microscope has an ocular lens that is 10x and the high power objective (40x) is in place, what is the total magnification? 400x Which of the following types of cells does not have a cell wall? human cheek cells You have just finished preparing a wet-mount slide. What objective lens should be in place as you begin to look at the slide using the compound microscope? scanning lens (4x) Even though it may not have been visible in all slides, Elodea, an onion and a human cheek cell all have a nucleus. True or False? True