HPLC QUIZ

According to the fluid mosaic model of cell membranes,

the unique properties of cell types are determined by their phospholipids

the most common type of molecules in the membrane are proteins

the membrane is a highly mobile mixture of phospholipids and proteins

basic membrane structure results from how the proteins interact with water

TRUE ANSWER : ?
YOUR ANSWER : ?

An organism's first line of defense against attack by an invader such as a virus or bacterium is usually

its body wall

to flee or hide

a specific immune response

a nonspecific immune response

TRUE ANSWER : ?
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The simplest way to differentiate a prokaryotic cell from a eukaryotic one is to

check for the presence of DNA

look for a plasma membrane

see if a nucleus is present

determine if the cell is an entire organism or not

TRUE ANSWER : ?
YOUR ANSWER : ?

Lysosomes are specialized vesicles in that contain digestive enzymes for the breakdown of food. A related organalle known as a vacuole, which is found in , also contains enzymes but in addition may act as a storage organelle for nutrients or water.

animals and plants; fungi

plants; animals and fungi

plants and fungi; animals

animals; plants and fungi

TRUE ANSWER : ?
YOUR ANSWER : ?

In which of the following cell types more cellular detail can be observed using an electron microscope compared to a light microscope?

All of these

Animal

Protist

Bacterial

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YOUR ANSWER : ?

Which of the following is the best criterion for deciding whether a cell is prokaryotic or eukaryotic?

The cell came from a single-celled or multicelled organism

DNA is present in the cell or not

The cell has cytosol or not

The cell has a nucleus or not

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Which of the following are responsible causing the diseases?

Macrophages

T cells

Lymphocytes

Pathogens

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Eukaryotic cells are more efficient than prokaryotes because their internal compartmentalization

allows for specialization through the subdivision of particular tasks

reduces overall cell size

makes each compartment nutritionally independent of all others

allows for specialization through merging of different tasks

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following statements about prokaryotes is false?

Ancient prokaryotes may have given rise to some eukaryotic organelles

Prokaryotic cells are much smaller than most eukaryotic cells

Prokaryotic cells concentrate important materials for the cells survival

The substance known as cytosol is found within the bacterial nucleus

TRUE ANSWER : ?
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Which of the following organelles is directly connected to the outer membrane of the nucleus in a eukaryotic cell?

Endoplasmic reticulum

Lysosome

Golgi apparatus

Mitochondrion

TRUE ANSWER : ?
YOUR ANSWER : ?

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