Biology - Unit 1

This type of bond describes atoms sharing electrons

This type of observation cannot be measured

This end of the water molecule is negative.

The cloud surrounding the nucleus of an atom contains

Enzymes

pH is determined by the level of these ions in solution

These are made of smaller units, called amino acids, joined by peptide bonds

Enzymes can be affected by

This is the picture representation of your data in an experiment

Which of the following pH levels is NOT an acid?

These control all cellular activities; regulate cellular reactions

This bond occurs between polar molecules; positive end attracts a negative end; in water

In your experiment, this is your standard of comparison; what you compare your experiment to

Water resists change in temperature. This is an example of:

These make up fingernails and hair

These are made of smaller units, called nucleotides

These aspects of your experiment DO NOT change

Water sticks to the sides of a graduated cylinder because of its:

This is an example of cohesion

This end of the water molecule is positive.

These contain your genetic information

This is what you change in an experiment; what is manipulated

This type of bond occurs between atoms that have gained, lost electrons having a slight charge

This is made using your 5 senses

This is how you test your hypothesis

ALL organic compounds contain this element

An educated prediction based on previous knowledge and experiences is a(n)

This type of observation consists of measurements

Water sticking to other items like pine needles is called

When using a pH strip, acids appear this color.

These are formed when electrons are gained or lost

A water molecule has a negative end and a positive end. This is because it's:

This is NOT an example of homeostasis

These can be described as monosaccharides, disaccharides, and polysaccharides

When using a pH strip, bases appear this color.

These are our main source of energy; immediate use

Water forms a curved meniscus in a glass graduated cylinder. This is due to water's ability of:

This is what you measure in your experiment; graphed on the y-axis

These are the basic units of life

This is NOT a requirement for all living objects

This is formed when monosaccharides bond together

Water is at its densest at

Why do water drops form a dome on the top of a penny?