Final Ivy Tech

plant cells can communicate with each other via _____, as indicated by the arrow in the picture

plasmodesmata

what is the first step in energy flow through an ecosystem

producers absorb solar energy

the main structural component of a plant cell wall is

cellulose

which of the following is not a function of the skeletal system

communication

the structure of bone tissue suits the function. which of the following is adapted to support weight and withstand torsion stresses?

compact bone

Inside the chloroplasts, chlorophyll is found in the

thylakoid membrane

water is a major limiting factor in

tundra

most metabolic wastes leave the body through the production of --- by the ---

urine, urinary system

which of the following has not contributed to declines in the world fish catch in years

use of aquaculture;aquafarming

what molecule most directly provides energy you need for your muscles

ATP

You are looking at a cell under a microscope and see what appears to be several X structures being pulled to each side of the cell. What stage of meiosis are you looking at?

Anaphase I

the central dogma of molecular biology states that the information contained withint gene flow in which direction

DNA to mRNA to protein

DNA replication makes a --- copy of the dna strand while transcription makes a ----- copy of the strand

DNA; mRNA

While Jeff was looking under the microscope at cells in different stages of mitosis he commented on the fact that many cells were in the same stage. If you were looking under the compound light microscope at an onion root tip, what stage would the majority of the cells be in the cell cycle?

Interphase

the best defintion of a nutrient is

a food component whihc can be stored in the body for future need

muscle tone is

a state of sustained partial contraction

forests help to regular the global climate by

absorbing CO2

which is not a funciton of blood

all are function

which ecosystem makes approximately 70% of the earths surface

aquatic; marine

chloroplasts and mitochondria are similar in that they both

are involved in protein production for the cell

which organisms have been modified to produce insulin, blood clotting factor VIII, and human growth hormone

bacteria

a cell being observed under a microscope has a cell wall, plasma membrane, ribosomes, and chromosomal material that is not found in a nucleaus. based on this information, the cell could be a

bacterial cell

A karyotype shows chromosomes arranged by

banding patterns, size, and shape

As humans continues to use fossil fuels as a primary source of energy, the amount of carbon entereing the atmophere from fossil fuel combustion will continue to increase dramatically. What is the effect of large-scale deforestation on the carbon in the atmosphere?

because trees produce carbon dioxide, the amount of carbon in the atmosphere will decrease with their wide scale removal fromt eh atmosphere for photosynthesis

energy needs are supplied by

carbohydrates, lipids, proteins

the four main categories of organic macromolecules are

carbohydrates, lipids, proteins, nucleic acids

which of the following is not a function of meiosis

cause an organism to grow

which of the following lists the levels of biological organization

cell, cardiac muscle, heart, cardiovascular system, human

plant cells have plasmodesmata that

connect the cytoplasm of one cell with that of another.

which of the following methods may help conserve waterby reducing amount used for agriculture

contour with no till farming

which of the following statements described the function of chloroplast?

converts light energy to chemical energy

all cells have some characterists in common, both prokaryotic and eukaryotic cells have

cytoplasm, a plasma membrane, and DNA

which fo the following would have the greatest influence in creating more sustainable urban society

decreasing the amount of land that is altered

carrie would like to observe the cilia on the surface of a live paramecium-- a single celled organism. the best device would be a

electron microscope

which of the following is not a function of the digestive system

eliminate nitrogenous waste

In an atom with a neutral overall charge,

equal number of protons and electrons

without tight junctions in certain tissues

fluids may leak out past the barrier the junction would create

Which of the following is an incorrect match of molecule to the location where it is principally used

glucose-lysosome

humans store excess polysaccharides in the form of

glycogen

which of the following correct sequence of events in cellular respiration

glycolysis, citric acid, electron transport

where do the vesicles that are being made from the cell become modified and packaged

golgi apparatus

the stack of thylakoids labeled A in this figure is called

granum

what does the folding of mitochondrial inner membrane provide?

greater surface area for ATP production

the major cause of loss in biodiversity is

habitat loss

some insects can stride on the surface of water because water

has surface tension

human society in its current form is unsustainable because

important natural resources are being consumed more quickly than they can be replenished.

in aquatic ecosystems, primary productivity is more dependent on

inorganic nutrients

digestion in humans and earthworms

is similar in that both organisms, digestion is an extracellular process, occurring in a complete digestive tract.

if your body is dehydrated the control center in the brain will stimulate the release of a hromone which causes the reabsorption of water n the blood during formaiton. When the control center sensed that enough water is reabsorbed, it will stop the release fo the hormone. This is an example of

lack of control over homeostasis

compared with a eukaryotic cell a prokaryote___

lacks organelles beyond ribosomes

the increased efficiency of fishing has lead to

loss of biodiversity

desertification and deforestation are similar in that both involve

loss of plant and animal life in an area

lipids

may be used ot make certain hormones and vitamin D

The study of comparative genomics has given researchers the ability to look at multiple genomes from different species, which has lead to new ideas about the evolutionary history of organisms. The conclusion is that

modern vertebrate species evolved fromt he same ancestors and a large portion of their genome is conserved

biodiversity increases the consumptive valuse of land, meaning that

more value can be derived fromt he more diverse products produced

movement of body parts directly requires

muscular and skeletal system

Isotopes of the same element have different

neutrons

the failure of sister chromatids to separate during meiosis is called

nondisjunction

below is a diagram of bacterium. what structure does Y represent

nucleoid

which feature is found in all cells

nucleoid region that contains DNA

the single most important risk for skin cancer is

overexposure to UV radiation

the removal of electrons and/or hydrogen atoms from a substrate is called

oxidation

the final accepts of hydrogen ions in aerobic cellular respiration is

oxygen

which of the following is not a product of cellular respiration

oxygen

fermentation occurs if

oxygen is not present

biones are defined by

plants, animals, and inorganic matter

Multipurpose trees are useful for what purpose?

providing additional products, as well as serving as a windbreak

the addition of electrons and or hydrogen atoms to substrate is called what

reduction

Hydropower and wind power are similar in that both are

renewable energy sources

which of the following organelles is not surrounded by a membrane

ribosomes

which of the following is the correct sequence for an altered protein that is secreted from the cell

rough endoplasmic reticulum - Golgi apparatus - plasma membrane

muscle tissue has all of the following properties except

secretion

the nervous system and endocrine system control the bodys functions

sending out messages by nerve impulse and hormones

which body system produces red blood cells

skeletal

plants store their sugar in the form of

starch

cell size is limited because____ is critical to a cell's function.

surface area to volume ratio

which creates the least amount of soil erosion

use of drip irrigation

which of the following are greenhouse gases?

methane and carbon dioxie

how does climate change affect oceans

ph level of oceans shift to tmore acidic environemtn leading to stress and then extinction

Susan was examining a cell under the microscope and noticed the formaiton of a cell plate in the midline of the cell and the formaiton of nuclei at opposite poles of the cell. The cell under examination was most likely a

plant cell undergoing cytokinesis

what must materials pass through to enter or leave the cell

plasma membrane