FREE BIOLOGY AND STUDY GAMES ABOUT BIO 101 EXAM

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FREE BIOLOGY AND STUDY GAMES ABOUT BIO 101 EXAM

1 Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -25 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Cation

Answer:

A positively charged ion.

Question 2: Producers

Answer:

An organism that makes organic food molecules from CO2, H2O, and other inorganic raw materials: a plant, alga or autotrophic prokaryote.

Question 3: Compound

Answer:

Combination of two or more different chemical elements held together by chemical bonds.Question 4: Understand how covalent bonds form and the difference between polar covalent

and non-polar covalent:

Answer:

Covalent bonding occurs when two (or more) elements share electrons. Covalent bonding occurs because the atoms in the compound have a similar tendency for electrons (generally to gain electrons)./ A polar bond is formed when electrons are unequally share

Question 5: Ion

Answer:

An electrically charged atom or group of atoms

Question 6: Hypothesis

Answer:

A tentative explanation a scientist proposes for a specific phenomenon that has been observed.

Question 7: Element

Answer:

Chemicals such as Hydrogen (H), Iron (Fe), Sodium (Na), Carbon (C), Nitrogen (N), or Oxygen (O), whose distinctly different atoms serve as the basic building blocks of all matter. There are 92 naturally occurring elements. Another 15 have been made in lab

Question 8: Matter

Answer:

Anything that occupies space and has mass

Question 9: Proton

Answer:

elementary particle in the nucleus of all atoms, elementary particle with a positive electrical charge

Question 10: Trace elements

Answer:

an element in a sample that has an average concentration of less than 100 parts per million measured in atomic count, or less than 100 micrograms per gram.

Question 11: Electron

Answer:

negatively charged particle which is a fundamental component of matter and exists independently or outside the nucleus of an atom

Question 12: What are Van der Waals interactions?

Answer:

named after Dutch scientist Johannes Diderik van der Waals, is the attractive or repulsive forces between molecules (or between parts of the same molecule) other than those due to covalent bonds or to the electrostatic interaction of ions with one another

Question 13: Isotope

Answer:

A variation of an element that has the same atomic number of protons but a different weight because of the number of neutrons. Various isotopes of the same element may have different radioactive behaviors, some are highly unstable

Question 14: Consumers/ decomposers

Answer:

An organism that obtains its food by eating plants or by eating animals that have eaten plants / Prokaryotes and fungi that secret enzymes that digest nutrients from organic material and convert them into inorganic forms.

Question 15: What is a H bond and know an example

Answer:

Hydrogen Bond the attractive interaction of a hydrogen atom with an electronegative atom, such as nitrogen, oxygen or fluorine, that comes from another molecule or chemical group. The hydrogen must be covalently bonded to another electronegative atom to c

Question 16: Isomer

Answer:

chemical compound which has the same number and kind of atoms as another but differs in structural arrangement

Question 17: Two basic cell types

Answer:

Prokaryotic and Eukaryotic Cells

Question 18: Anion

Answer:

A negatively charged ion.

Question 19: Energy

Answer:

The capacity to perform work or to rearrange matter.

Question 20: Products

Answer:

something that is produced, result of manufacturing; goods, merchandise; (Mathematics) result obtained by multiplying quantities together

Question 21: What is a chemical reaction?

Answer:

Interaction between chemicals in which there is a change in the chemical composition of the elements or compounds involved.

Question 22: Characteristics of Life

Answer:

? Order ? Regulation ? Growth and Development ? Energy Processing ? Response to the Environment ? Reproduction ? Evolutionary Adaptation

Question 23: Neutron

Answer:

elementary particle in atomic nuclei which has no electrical charge Question 24: 4. Understand the basic steps of the scientific method and the proper design of an experiment. Including the statement of the hypothesis and use of controls.

Answer:

Steps of the Scientific Method: ? Ask a Question ? Do background research ? Construct a Hypothesis ("If (I do this) then (this) will happen.") ? Test your Hypothesis by doing an experiment ? Analyze your data and draw a conclusion ? Comm

Question 25: Reactants

Answer:

person or thing which reacts, person or thing which responds to a stimulus; (Chemistry) reactant, chemical substance that is involved and goes through change during a chemical reaction