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Chemistry

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Haylie Corkery

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Cards in this guide (16)
What is a qualitative observation

A Qualitative Observation is an observation that uses the five senses. sight, smell, hearing, touch, and taste. An example of this would be: "This tree has bright green leaves that have soft bumps on them."

The opposite is a quantitative observation, which is measured in numbers, such as the weight or length of an object. For example, 5 pounds or 100 inches. For instance "The stratosphere begins 40 kilometers above the surface of Earth."

What is the main function of starch in plants

The main function of starch in plants is to store energy.

What do bacteria have in common with the cells of other living organisms

They have ribosomes.They contain cytoplasm.

Some things bacteria have in common with cells of other living organisms is they both have chromosomes, they both have organelles and a nucleus, and are alive.

they have a cell membrane

Which best describes a difference between prokaryotic cells and eukaryotic cells

Eukaryotic cells contain organelles that are enclosed in membranes

What macromolecule is made up of nucleic acids

DNA and RNA are made up of nucleic acids.

Why does water roll off the surface of a leaf

because the leaf is non polar

or

Because the leaf is coated in lipid molecules

What was Rudolf Virchow trying to prove through his work

Spontaneous generation does not happen.

Which of the following would be considered a qualitative observation

The color of flowers is compared.

The height of radish seedlings is measured

Which one is better for moving more nutrients in and out the cell surface or more volume

more volume decreases the surface area of the cell thus making the distance of transporting nutrients in and out of the cell less. so more volume is better

Can you hypothesize what function they could have in this process

Yes, they could have used a function that gave us a clue what you were talking about.

Which equation has water as a product in the chemical reaction-

bromine water? The reaction between hexene, bromine, and water is an addition reaction.

Which best describes the nucleus of an atom

It is the part of the atom with the greatest mass.

According to the graph what condition is best for enzyme activity

25

What do all cells have in common

They all Contain DNA

Look at the diagram below. Which best describes the structure labeled X in the diagram

A membrane protein is transporting substances. APEX

Pure liquid water has a pH of what

7

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