Biology Quizzes (Ch. 1-4)

Which of the following allows eukaryotic cells and their organelles to move?

cytoskeleton

Which functional group is common to both amino acids and fatty acids?

-COOH

Which organelle modifies the contents within vesicles and then repackages them for export?

Golgi apparatus

which of the following terms should be categorized separately from the others?

Sucrose

Cell size is limited because _____ is critical to a cell's function

Surface-area-to-volume ratio

After drinking a great deal of coffee (pH 5), a human's blood buffering system would need to _____ as the coffee was digested to lower the level of acid present in the bloodstream.

Take up H+

Sucrose, C12H22O11, is described as a(n)

compound

one carbon atom can form up to ______ covalent bonds with other atoms

4

A molecule is said to be organic if it contains

Carbon and hydrogen atoms

Scientists created an enzyme that will break down any type of carbohydrate. If given to humans, which of the following could be used as a new food source?

Cellulose

Plant cells have plasmodesmata that

Connect the cytoplasm of one cell with that of another

An atom's valence electron shell

Determines its chemical reactivity

Surface-to-volume ratio is an important characteristic for cell functions; some cells increase their ratio by

Developing finger-like projections

Humans store glucose in the form of

Glycogen

Male amphibians, including frogs and toads, have been plagued by feminization, deformity, behavioral abnormalities and sterility. Biologists from the University of Florida investigated whether reproductive problems among populations of cane toads (bufo marinus) are caused by poisons from chemicals associated with agriculture. The biologists collected local adult cane toads from more than 20 different locations. Toads were collected from areas close to agriculture, both large-scale and small-scale farms, as well as from suburbs that are non-agricultural areas. Based on this study, what is/are the test group(s)?

Male toads collected from areas near large-scale and small-scale farms

The process of _______ leads to organisms that are _______ that environment.

Natural selection; adapted to

The atomic structure of water satisfies the octet rule by having

Oxygen share electrons with two hydrogen atoms

A covalent bond involves the sharing of

Pairs of electrons

since the plasma membrane blocks the passage of all but a few molecules with specific traits, it is necessary for other molecules to

Pass through the membrane via proteins

Which feature is found in all cells?

Plasma membrane composed of phospholipids

Starch is a ______ made of many _______.

Polymer; glucose molecules

Amino acids are needed to build ______, just as _______ are needed to create DNA

Proteins; nucleotides

which kingdom includes both unicellular and multicellular organisms?

Protista

Which of the following is a correct match?

Ribosomes- protein synthesis

Which of the following is the correct sequence through the endomembrane system for material that is destined to be secreted from the cell?

Rough endoplasmic reticulum- golgi apparatus- plasma membrane

Miguel keeps a red worm bin in his basement because the worms need cooler temperatures to survive. He feeds them about one pound of kitchen scraps each week. One summer the temperatures rose above the optimal temperature for the red worms (~ 85 F) and many in his colony died. However, the worms that survived continued to reproduce and within six months his colony was thriving again. The following summer, unusually warm temperatures once again resulted in the basement temperature rising above 85 F. surprisingly, Miguel noticed that only a small portion of the worm colony died. What is the best explanation for the higher survivorship rate?

The worms that survived the first summer had a higher heat tolerance and passed this trait on to their offspring

What do lemons, tomatoes, and coffee all have in common chemically?

They all release H+ ions in solution, making them acids

Radioactive isotopes would be most harmful to a person when

Unmonitored release into the environment makes changes in a cell's DNA

Which of the following statement(s) is not a true statement with respect to scientific theory?

all scientific theories are considered scientific principles or laws

The following figure represents which process?

dehydration synthesis

Which of the following can be categorized as prokaryotic?

domain bacteria

Which of the following is considered the unifying concept of biology because it explains almost every aspect of life, including the diversity of life on this planet?

evolution

In addition to carbon, an organic molecule must contain

hydrogen

Himari is studying birth and death rates of spotted seals in a portion of Shiretoko National Park. What level of organization is she studying?

population

An ionic bond forms when

A positively charged ion is attracted to a negatively charged ion

How does a strong acid differ from a weak acid?

A weak acid dissociates only partially in water

Harposporium anguillulae are carnivorous fungi that prey on nematodes and eelworms. How should harposporium anguillulae be classified?

Eukaryotic consumer

The type of bond that would form from the transfer of an electron from one atom to another is a(n) _______ bond.

Ionic

Technology

Is the application of scientific knowledge to human interests

Which of the following is a type of intracellular motor protein involved with the movements of vesicles?

Kinesin