Unit 2: Energy Transformation Test

Which statement describes how single-celled eukaryotes, such as amoebas, eliminate waste from their cells?

In the food web in diagram 9, the trophic level with the least energy includes which of the following organisms?

The image in Diagram 5 shows a picture of a leaf cross-section. Identify the cells pictured in the diagram and give their purpose.

Which part of the cell provides energy through the process of cellular respiration?

Compared to a skin cell, a muscle cell is likely to have more —

Which of the following is an abiotic factor in an ocean ecosystem?

Identify the structures labeled A in Diagram 6.

Which example lacks the basic structures of a living organism and cannot metabolize or maintain homeostasis?

In photosynthesis, light energy is converted to

When an animal eats, food stays in the stomach for a period of time. When a unicellular organism, such as Paramecium, takes in food, the food is stored in which organelle?

The graph in Diagram 4 shows the amount of ATP produced in a cell during a period of time.

According to the graph, which of the following processes must have increased between points A and B?

Which of the following best describes a biome?

Which set of chemical reactions is performed by the chloroplast of the cell?

If decomposers, such as bacteria and fungi, were removed from the earth, what would the greatest consequence be to the carbon cycle?

Diagram 1 illustrates how plant root cells take in mineral ions from the surrounding soil.

Which of the following processes is illustrated?

A fungus has a wall composed of a polysaccharide similar to cellulose, which is also found in the exoskeleton of insects. This material is

Ecosystems are made up of both abiotic and biotic factors. Which of the following factors is considered biotic?

Cells use passive and active transport to move materials across cell membranes in order to maintain a constant internal environment. What is the process of maintaining a constant internal environment called?

The energy pyramid in Diagram 8 shows feeding relationships in an Oregon coastline ecosystem. According to the energy pyramid, about how many pounds of sargassum seaweed would need to be present in the ecosystem, in order to support a 10 pound rockfish?

The energy in the food produced by autotrophs or taken into the bodies of heterotrophs must be changed into a form that cells can use. The energy-transferring molecule used by cells is —

Some decomposers get their energy by breaking down glucose in the absence of oxygen. This type of cellular respiration is a form of

Which of the following is an example of ecological succession?

Which of the following practices is MOST likely to slow the buildup of CO2 in the atmosphere?

An undisturbed deer population grows until its carrying capacity is reached. Which of the graphs in Diagram below BEST resembles this deer population?

Approximately 20 amino acids are essential to living systems. How are amino acids linked together to form proteins?

Which of the figures in Diagram 2 best represents the net movement of molecules in osmosis?

Plant and animal cells have many similar components, but plant cells contain two that animal cells do not. One of these is

Why does the existence of animals, and their ability to make proteins, depend upon soil bacteria in the nitrogen cycle?

Which of the following are products of cellular respiration?

What function do phospholipids perform in living organisms?

Diagram 3 shows the diffusion of vitamin B into a cell. What is part A, and in what organelle is it located?

Predators often feed on weak or sick animals in an ecosystem. The role of the predator is described as its

In which of the following ways are photosynthesis and cellular respiration alike?

Which statement regarding proteins is true?

Which organism is heterotrophic?

The terms cellulose, glycogen, and monosaccharide are all associated with which term?

In the food web in Diagram 10, which of the following most likely occupies the location marked X in this food web?

Symbiosis involving a fungi and algae is seen in which of the following?

Replacing inorganic nutrients in soil is accomplished primarily by the

The field of science that studies the interactions among living and nonliving factors in the environment is

A type of cell that can exist in a broad range of environmental conditions, can rapidly multiply, and lacks a nucleus is known as what type of cell?

Mimosa tree leaves wilt when they are touched. The firm small leaves shown here quickly droop and close up, even if an animal or person barely grazes them. To do this, the tree draws moisture out of the leaves and further into the stem. This adaptation is thought to make the leaves less appealing to animals that would try to eat them. Minutes later, after the animal has probably passed, the leaves regain water pressure and look normal. What type of tropism does the mimosa tree show?

While many people call protozoans, such as amoebas, ciliates and flagellates, 'single-celled animals', this is actually incorrect. Why is this?

Which of the following is released when ATP is converted to ADP and inorganic phosphate?

Which statement is correct, with regard to the catalase enzyme catalyzing the breakdown of hydrogen peroxide into water and oxygen?

What makes the sun the ultimate source of energy for all living things?

Edgar, a biochemist, claims to have found a new variety of a type of small biomolecule. Edgar notes that there are now 21 types of this biomolecule instead of the old known 20. The molecule can also be combined with others in its class to produce a wide variety of proteins. What type of biomolecule did Edgar find?

What structure is common to all five kingdoms of living organisms?

Passive transport differs from active transport in that passive transport

Krakatoa was an island in the Pacific Ocean that was completely destroyed by a volcano in 1886. By 1960, the volcano had formed a new island called Surtsey. A type of grass became the first plant life on Surtsey, when the seeds were dropped by birds that had passed over the island in flight. What type of ecological change does this describe?