Study of Life
Biological Chemistry
Cell Structure
Cell Function
Misc
100

In an experiment where some information is withheld both from participants and researchers, the experiment is referred to as _______. 

Double blind

100

When two atoms share one or more pair of electrons, the bond formed is known as a(n) _________ bond.

Covalent

100

In all cells, organelles are suspended within the _________.

a. cytosol

b. gene

c. nucleoplasm

d. phospholipid bilayer

a. cytosol

100

What two organelles function in cellular energy? 

Chloroplast and mitochondrion

100

A _________ is a unicellular prokaryote.

a. protist

b. pine tree

c. fish

d. bacterium

d. bacterium

200

If we change the amount of food given to mice, but keep all other factors in the experiment the same, the amount of food is the ______. 

Independent variable

200

Water molecules are polar. A polar molecule is one in which the _________.

a. electrons are equally distributed around the molecule

b. electrons are unequally distributed around the molecule

c. protons are equally distributed in the nucleus

d. protons are unequally distributed in the nucleus

b. electrons are unequally distributed around the molecule

200

_________ are the major lipids of plasma membranes.

a. Triglycerides

b. Phospholipids

c. Fatty acids

d. Steroids

b. Phospholipids

200

What organelle plays a role in modifying proteins? 

rough endoplasmic reticulum 

200

Enzymes are almost always _________.

a. fats

b. steroids

c. monosaccharides

d. proteins

d. proteins

300

What is it called when complex molecules are made from simpler molecules? 

Anabolism

300

An atom with a negative charge has _________.

a. more protons than electrons

b. more electrons than protons

c. more neutrons than protons

d. more neutrons than electrons

b. more electrons than protons

300

Which organelle is not defined by a membrane?

a. ribosome

b. mitochondrion

c. chloroplast

d. nucleus

a. ribosome

300

Information is transferred from the cell nucleus to ribosomes via _________.

a. mRNA

b. rER

c. sER

d. DNA

a. mRNA

300

What kind of reaction is represented below?

    sucrose + water       glucose + fructose

a. dehydration synthesis

b. hydrolysis

c. denaturation

d. gluconeogenesis

b. hydrolysis

400

After conducting background research, what is the next step in the scientific method? 

Form a hypothesis

400

With what are saturated fats saturated?

a. phosphorous

b. nitrogen

c. carbon

d. hydrogen

d. hydrogen

400

The fatty acid tails of the phopholipids in the cell membrane are _____. 

a. hydrophilic

b. hydrophobic 

b. hydrophobic 

400

The ability that the plasma membrane has to only let certain things in and out of the cell is called ___. 

Selective permeability

400

Each different protein is unique due to its _________.

a. arrangement of monosaccharides

b. number of nucleotides

c. saturation

d. sequence of amino acids

d. sequence of amino acids

500

A scientific theory differs from a hypothesis in that a scientific theory is _____. 

Based on a larger set of data, has been tested and is believed by many

500

An uncharged atom of gold has an atomic number of 79 and a mass number of 197. This atom has _________ protons, _________ neutrons, and _________ electrons.

a. 79; 118; 79

b. 118; 79; 118

c. 276; 118; 79

d. 79; 276; 79

a. 79; 118; 79

500

Of the following cell components, which is not double membraned? 

a. nucleus

b. plasma membrane

c. rough ER

d. mitochondria

c. rough ER


500

The lysosomes are able to break down large molecules because they have ____. 

enzymes and a low pH

500

What type of microscope is has the highest magnification? 

Electron microscope