Question 1

Which of the following is a simple measure to express the concentration of solutions quantitatively?

Accepted Answer

Percent by mass

Question 2

How does temperature generally affect the solubility of a solute in a given solvent?

Accepted Answer

It can either increase or decrease solubility depending on the solute

Question 3

What indicator can be used to classify common household solutions as acidic, basic, or neutral?

Accepted Answer

Litmus paper

Question 4

Which part of a compound microscope is used to adjust the amount of light passing through the specimen?

Accepted Answer

Diaphragm

Question 5

When using a microscope, what is the formula to calculate the total magnification?

Accepted Answer

Eyepiece magnification x Objective lens magnification

Question 6

What part of the cell is often referred to as the control center and contains genetic material?

Accepted Answer

Nucleus

Question 7

Which scientist is credited with observing cork cells and coining the term 'cell'?

Accepted Answer

Robert Hooke

Question 8

An organism made up of only one cell is classified as:

Accepted Answer

Unicellular

Question 9

A key structural difference between plant and animal cells is the presence of a:

Accepted Answer

Cell wall

Question 10

The cell membrane's function is to act as a semipermeable barrier that regulates:

Accepted Answer

Movement of materials

Question 11

Which of the following is a quantitative measure of concentration: grams per milliliter?

Accepted Answer

True

Question 12

What is the primary function of the cytoplasm in a cell?

Accepted Answer

To hold organelles and be the site of many metabolic reactions

Question 13

Which scientist proposed that all cells arise from pre-existing cells?

Accepted Answer

Rudolf Virchow

Question 14

What is the typical role of a 'salt containing' solution when tested with litmus paper?

Accepted Answer

Has no effect on litmus paper

Question 15

Proper handling of a microscope includes:

Accepted Answer

Using both hands, one on the arm and one on the base

Question 16

Observing specimens safely and accurately under a microscope involves:

Accepted Answer

Starting with the lowest power objective and moving up

Question 17

Which of the following is a characteristic of multicellular organisms?

Accepted Answer

Levels of biological organization

Question 18

The nucleus of a cell contains:

Accepted Answer

Genetic material

Question 19

What is the primary role of the objective lenses on a compound microscope?

Accepted Answer

To magnify the image

Question 20

Which scientist is known for stating that all plants are made of cells?

Accepted Answer

Matthias Schleiden

Enhanced Science 7: Solutions, Cells, and Microscopy

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