Biology (Allied Health)

The scientific method is used to_____.

answer specific questions about the natural world

A tentative explanation to a question about the natural world is a_______

hypothesis

A______ is a factor in an experiment that can be manipulated.

variable

How many centimeters (cm) are in one meter (m)?

100 cm= 1 cm

Which metric unit is used to measure fluids?

Ounces

Liters

Grams

Meters

liters

Which of the following are found in the nucleus of an atom?

Electrons

Neutrons and Protons

Neutrons

Protons

neutrons and protons

The number of protons in a neutral atom equals the number of

electrons

The atomic number of an element is the same as the number of _______ in each atom.

protons

Which of the following elements is/are found in all living things?

Phosphorus

Sulfur

Nitrogen

Carbon

All of the above

all of the above

Which of the following is an element?

Water

Carbon Dioxide

Sodium Chloride

Hydrogen

hydrogen

Which element is the major component of organic molecules in all living organisms?

Oxygen

Phosphorus

Carbon

Nitrogen

carbon

What is the pH of a neutral solution?

7

What does hydrophobic mean?

repelled by water

Proteins are made from these building blocks?

amino acids

What is the name of a molecule composed of one or more sugars?

carbohydrate

The basic structural and physiological unit of all living organisms is the

cell

In which cell structure are the chemical reactions of cellular respiration performed to provide ATP for the cell

mitochondria

The internal membrane bound compartments found in eukaryotic cells are called _____.

organelles

A group of cells that work together to carry out a similar function is known as a(n)

tissue

A general function of all membranes in the cell is to

regulate which materials can cross the membrane.

Proteins are synthesized by the

ribosomes

Some bacteria are able to propel themselves through liquid by means of a structure called the

flagellum

Eukaryotic cells differ from prokaryotic cells in that they contain a ________.

nucleus

The ______defines the outer boundary of all cells, separating the cell's contents from its environments.

plasma membrane

The ____ is the compartment in a cell that stores DNA in the form of chromosomes.

nucleus

If a shallow pan is filled with water, a drop of red ink is placed in one end of the pan, and a drop of green ink is placed in the other end, which of the following will be true at equilibrium?

The red and green inks will be uniformly distributed throughout the pan.

Movement of a molecule against a concentration gradient with the use of energy is defined as

active transport

Osmosis is the diffusion of _____ from a region of low concentration of dissolved material to a region of high concentration of dissolved material.

water molecules

Which type of cell division produces daughter cells that are identical to the original cell?

Meiosis in plants

Mitosis in animals

Meiosis in fungi

Meiosis in animals

Mitosis in animals

During which phase of mitosis are the replicated chromosomes aligned in the middle of the cell?

Metaphase

Which of the following is the correct order of events in mitosis?

(PMAT)

Prophase

Metaphase

Anaphase

Telephase

Normal sperm or egg cells in a human

have one copy of each chromosome

The growth and reproduction of an individual is called its

life cycle

Genetic material of living organisms is composed if

DNA

Genes encode information to make

proteins

Consider a strand of DNA with the sequence GAATTCGGCA. What is the sequence of the complementary strand?

CTTAAGCCGT

What causes the differences between two human cell types (for example, a skin cell and a brain cell)?

Different cell types contain the same genes but use different combinations of them.

A mistake made during copying of genetic information is called a

mutation

Human males have____ sex chromosomes.

XY

Huntington's disease is caused by the allele H, which is completely dominant to the normal recessive allele h. Consider a couple where the man has the genotype Hh, and the woman has the genotype hh. What is the chance that their child will develop Huntington's disease?

50%

A heritable trait may be influenced by

genes and environmental factors.

Water held back by a dam represents what kind of energy?

potential

The sum total of all the chemical reaction in a living structure is called its

metabolism

Plants need which of the following to carry out photosynthesis?

H2O and CO2

In addition to glucose, which of the following is required for aerobic respiration to occur in cells?

O2

According to the theory of common descent, each species on earth today should

have a single ancestral species in common

In a population, which individuals are most likely to survive and reproduce?

the individuals best adapted to the environment

All life on earth is classified as either a plant or animal.

(TRUE/FALSE)

false

A species consists of

organisms capable of interbreeding.

Define an isotonic solution

Amount of water that goes in the cell is equally going out of the blood cell (normal)

Define a hypertonic solution

one solute is higher than the other solute in the blood cell (water moving out)(shrunk)

Define a hypotonic solution

one solute is lower than the other solute in the blood cell (water will move in)(swollen)

Define a isothermic solution

occurring at a constant or equal temperature

Hypertonic