BIOLOGY LAB TESTS COMPILATION BUNDLE

Why did the catalase function level off when different hydrogen peroxide concentrations were tested? correct answer: At some point, all the catalase in solution was catalyzing reactions, so even if the hydrogen peroxide concentration was increased, the rate of the reaction could not increase any mo...

When teaching a patient about wound healing, which of the following should the nurse tell the patient? a) fat tissue heals more readily because there is less vascularization b) chronic wounds heal more efficiently in a dry, open environment, so leave them open to air when possible c) long-term s...

Proteins that act as catalysts; or a protein that functions as a catalyst for a chemical reaction. correct answer: Enzymes Substances that regulate the rate of chemical reactions but do not unite permanently with reactants correct answer: Catalysis Heat, acids, and bases break the weak hydro...

DNA is used as a template for making correct answer: proteins and RNA. A student was testing whether PTC tasting ability correlated with amount of coffee consumed. She tested determined the lowest concentration of PTC that an individual could taste and rated it on a scale from 1-14. Then, she su...

A pair of shared valence electrons is referred to as a(n): a. covalent bond b. hydrophobic effect c. van der Waals interaction d. ionic bond correct answer: a. covalent bond For an atom that is NOT an ion, which of the following must be TRUE? a. the number of electrons equals the number of ...

Which of the following statements correctly summarizes cell theory? correct answer: All organisms are made of cells, and all cells come from preexisting cells. Natural Selection correct answer: Natural selection occurs when heritable variation in certain traits leads to improved success in repr...

Whether in a gas, a liquid, or a semisolid, diffusion always occurs. correct answer: from high to low solute concentration Which dye would you predict to move the fastest (and thus go furthest in a given time period) through agar? correct answer: Potassium permanganate (mw= 158) The spreadin...

The prefix milli means correct answer: 0.001 The prefix micro means correct answer: 0. The metric baseline unit for distance is the correct answer: Meter The metric baseline unit for mass is the correct answer: Gram How many mm are in one meter? correct answer: 1000 6.5g is equiv...

Species evenness is an important measure of diversity in an ecosystem. T/F correct answer: true When a tapeworm steals nutrients from the gut of a mammalian host, that symbiosis is called: intraspecific competition. parasitism. commensalism. mutualism. predation. correct answer: parasiti...

If there is a fire drill, what is the first course of action? correct answer: Turn off the gas. Listen to instructions. Glasses or contact lenses in the lab? Why? correct answer: Glasses. Can't wear contact lenses because if a chemical gets in your eye, the contacts can absorb it. During th...

humans have how many chromosomes? correct answer: 23 pairs Diploid Cell correct answer: 2n (2 of every chromosome) Haploid correct answer: N (1 copy of every chromosome) Are sex cells diploid or haploid? correct answer: haploid Cell cycle consists of what stages correct answer: G1, ...

Biology Lab Practical- Final| 293 Questions| With Complete Solutions

What is the magnification of the 3 ocular lenses? correct answer: 10x scanning objective correct answer: 4x (multiply by 10x) low power objective correct answer: 10x (multiply by 10x) high power objective correct answer: 40x (multiply by 10x) One ocular unit is equal to how many mm o...

During DNA replication, correct answer: each parental strand serves as a template for the synthesis of a complementary strand How would the shape of a DNA molecule change if adenine paired with guanine and cytosine paired with thymine? correct answer: The DNA molecule would have irregular width...