Based on the graph, what is the optimum temperature for this enzyme? 

Which is the strongest acid?

Which is the initial color of starch indicator solution?

In our diffusion lab, what happened to the “cell” that contained starch solution after 20 minutes?

When a cell shrinks in size, what type of solution was added to it?

If an DNA sequence reads AGGCTA then the mRNA sequence would read

What is the total magnifications of a microscope on high power (40x) if the eyepiece is 10x?

What process requires energy?

creating large, complex molecules by combining smaller molecules is referred to as ____

A solution with a pH of 9 is a(n) ___.

Organic compounds such as starch are too ___ to fit though the cell membrane. They must be digested into ___ before they can be absorbed

What term is used to describe the living components of an ecosystem?

What occurs in the organelle that looks like this?

What form is energy made in?

What direction does a microscope turn the object you are viewing?

What is the substance the enzyme works on called?

Name the most important inorganic compound to living things…

How should the control group be treated differently than the experimental group?

If a 20% salt solution is put into dialysis tubing & added to a beaker of distilled water - what way will the water move?

What term defines a cell without a nucleus?

A cell maintains life by undergoing ….

What part of a plant cell allows them to make their own food?

What molecule has the instructions (blueprint) for the cell?

Name the building block of a starch

If a segment of DNA is ATCGA what would its complement be?

What organism is an ecosystem that would be most affected by a decrease in CO2?

Rejection of a newly transplanted organ is caused by

As blood glucose levels increase, hormones are released to return glucose levels to normal. This is an example of

Which statement describes a failure of homeostasis in humans?

Which biological process is represented in the diagram below?

The diagram below shows specialized plant cells that control openings called stomates. The proper function of these cells is vital to the survival of the plant because they regulate the

Substance X directly supplies energy for various life functions, as shown in the diagram below. Which substance is represented by X in the diagram?

The structural formulas shown below represent parts of two different complex carbohydrate molecules composed of glucose subunits. Molecules 1 and 2 differ in their overall structure. Due to the differences in structure, each of these molecules most likely

To capture their prey, spiders have fangs, which pierce the body wall of insects and inject venom. Spider venoms usually contain specific proteins that attack the cell membranes of the prey. The membranes and most of the contents of the insect’s body turn into a liquid that the spider then ingests for food. These specific venom proteins are most likely

Lymphatic capillaries are found throughout the body. Both the lymphatic and circulatory systems transport substances between the bloodstream and body tissues. These two systems are also involved in fighting infections. The arrows shown in the diagram that go from the blood capillaries to the interstitial fluid most likely represent the

Doctors often use certain medications to treat infections. A few people have a reaction to some of these medications, such as itching, swelling, or trouble breathing. This is an example of

A small lizard spends the morning hours lying in the sunlight until its body temperature rises. Later on in the day, the lizard rests in a shady area until its body temperature cools. This type of behavior is important to

The Venus flytrap is a plant that has a unique system by which it traps and breaks down its prey. Unsuspecting insects land on the leaf and touch tiny hairs located on the leaf, triggering the leaf to close around the prey. The substance responsible for breaking down the Venus flytrap’s prey most likely contains

It may be harmful when people compete to see who can hold their breath the longest under water. Without oxygen, brain cells

Students did an experiment comparing the activity of four different enzymes, A, B, C, and D. The results are represented in the graph below. A valid conclusion based on the information in the graph is that

The diagram below represents changes that take place within the human body. The diagram represents

Sailors in the past may have heard the greeting from a passing ship, “Avast ye scurvy dogs.” This greeting would be a reference to a disease known as scurvy, which is due to inadequate intake of vitamin C. Which row in the chart below correctly identifies the cause of this disease and a possible treatment for it?

In the 1660s, Flemish physician Jan van Helmont grew a small willow tree in a pot of soil. He added only water to the pot. At the end of five years, he found that the tree had gained 75 kilograms, but there was very little change in the mass of the soil. Van Helmont concluded that the plant gained weight directly from the water. We now know that this conclusion is only partially correct because, in addition to water, photosynthesis also requires

Doctors sometimes use a vaccine to prepare the body to defend itself against future infections. These vaccines most often contain

Anhidrosis is the inability to sweat normally. If the human body cannot sweat properly, it cannot cool itself, which is potentially harmful. Anhidrosis most directly interferes with

Carmine, a compound that comes from the cochineal beetle, shown below, is used as a food coloring. The food coloring is not harmful to most people, but in a small number of individuals, it causes a reaction and affects their ability to breathe. This response to carmine is known as

Humans have an effect on ecosystems when they use native grasslands or forested areas for farming or urban use. One negative effect of these changes on the ecosystem is that there will be

Based on this information, which ecosystem is likely to be the most stable?

The organisms represented by X are

Energy for this ecosystem originally comes from

An environment can support only as many organisms as the available energy, minerals, and oxygen will allow. Which term is best described by this statement?

What impact do the amounts of available energy, water, and oxygen have on an ecosystem?

Which sequence shows increasing complexity of levels of ecological organization?

Great horned owls and red-tailed hawks have similar requirements for food, space, and nesting materials. What would most likely be the result of great horned owls and red-tailed hawks living in the same community?

Which organisms are not shown in this diagram but are essential to a balanced ecosystem?

Organisms that can make their own food are called

An organism that eats both plants and animals is a

Which of these is an abiotic factor?

What happens if a population grows past its carrying capacity?

Lobsters prey on sea hares, which are marine animals. The lobsters find their prey through a sense of smell. The sea hares defend themselves by squirting ink at the lobster, as shown in the photo below. The ink sticks to the lobster, interfering with its sense of smell. The most likely reason the sea hare can escape is because the sea hare ink

The movement of molecules from side A to side B is an example of the process of

Which sequence represents structures organized from MOST complex to LEAST complex?

An amoeba, a one-celled organism, can move, ingest, and transport materials within the cell, because it has:

A cell needs to import a particle from it's environment. The particle is in a higher concentration in the cell than out of the cell. The particle will enter by:

Why are sexually reproducing organisms more likely to survive in a changing environment?