Biology Questions

Which of the following is NOT a role of cell adhesion molecules CAMS assist in the movement of cells past one another attract white blood cells to areas of injury or infection anchor cells to each other attract and bind ligands such as hormones

Match the membrane transport process with its description Osmosis Simple diffusion Facilitated diffusion 1 Passive process used to transport large or polar molecules across the membrane using channels or carrier proteins 2 3 Passive process in which a solvent diffuses through the membrane down its concentration gradient Passive process in which lipid soluble or very small molecules diffuse through the membrane down their concentration gradient

Listen Match the event with the phase of mitosis that it occurs in The chromosomes decondense to form chromatin and the nuclear envelope begins to form The individual chromatids separate and move to opposite poles of the cell The DNA condenses into chromosomes and the nuclear envelope disappears The microtubules of the mitotic spindle align the chromosomes in the center of the coll 1 Anaphase 2 Metaphase 3 Prophase 4 Telophase

Listen Match the type of endocytosis with its description Receptor mediated endocytosis Pinocytosis Phagocytosis 1 Engulfed molecules bind to receptors before endocytosis occurs Endocytosis of relatively large or solid material 3 Endocytosis of extracellular fluid 2

Which of the following is NOT a function of the smooth endoplasmic reticulum steroid based hormone synthesis breakdown of stored glycogen to form free glucose protein synthesis in conjunction with ribosomes lipid metabolism and cholesterol synthesis

Which of the following is FALSE regarding proteins Proteins consist of many amino acids linked by peptide bonds All proteins have primary secondary tertiary and quaternary structure Fibrous proteins are structural molecules while globular proteins are functional molecules Proteins are the basic structural material of the body and play many vital roles in cell function

Choose whether each property listed on the left is true for DNA or RNA A double stranded helical DODDE molecule A single stranded molecule Utilizes the nitrogenous bases A G C and U Found in the nucleus Utilizes the nitrogen bases A G C and T Mostly found outside of the nucleus 1 DNA 2 RNA

Listen In a tissue that is subject to a great deal of mechanical stress like the muscle cells in between the individual cells of the your heart you would expect to see tissue gap junctions tight junctions connexons

Match the term with its definition 7 Atoms Matter Elements Mass 1 Pull of gravity on mass 2 3 4 Building blocks that give an element its unique physical and chemical properties Equal to the amount of matter in the object 5 Unique substances that cannot be broken down into simple substances by ordinary chemical methods Anything that has mass and

Which of the following does NOT describe a use for ATP transport work chemical work mechanical work molecular structure

Match the body plane with its description V Transverse plane Oblique plane Sagittal Plane Frontal plane 1 2 3 4 Divides the body horizontally into superior and inferior parts Divides the body vertically into right and left parts Divides the body at an angle other than 90 to the vertical plane Divides the body vertically into anterior and posterior parts

Onion Cell Plant This is a real image of cells from the inside of an onion magnified 400X There are only four cell components you can identify in this picture Cytoplasm Nucleus Cell Wall

Carbohydrates and proteins are built up from their basic building blocks by the removal of a water molecule between each two units addition of a carbon atom between each two units addition of a water molecule between each two units removal of a carbon atom between each two units

Listen A good example of a positive feedback mechanism would be blood calcium level regulation body temperature regulation regulating glucose levels in the blood enhancement of labor contractions

This is a visible with a compound light microscope Fill in the blanks Mitochondria Nucleus Nucleolus D DY

Groups of similar types of cells that work together to perform a common function are tissues organs organelles organ systems

n the organ system with is major function V Urinary System Endocrine System Digestive System Nervous System 1 2 Uses hormones to regulate processes such as growth reproduction and metabolism 3 Uses electrical signals to control the body it activates muscles and glands in response to stimuli Regulates water electrolyte and acid base balance of the blood eliminates nitrogenous wastes from the body Breaks down ingested food and

Transcription factors loosen histones from DNA in the area to be transcribed so that RNA polymerase can access it bind to the promoter on the template strand of the gene that will be transcribed mediate the binding of RNA polymerase to the promoter All of the above

What property of radioisotopes makes them valuable tools for biological research and medicine They have much more mass than their corresponding atom The radioactivity produced when they spontaneously decay into more stable forms can be detected with scanners They are not useful for either biological research or medicine because they damage living tissue They are structural variations of atoms that differ in the number of neutrons

The dorsal body cavity houses the viscera whereas the ventral body cavity hoses the nervous system True False

Match the type of chemical bond with its description V Polar covalent bond Nonpolar covalent bond lonic bond Hydrogen bond 1 2 Chemical bond created by equal sharing of electrons 3 Attractive force between the electropositive hydrogen of one molecule and an electronegative atom of another 4 Attraction between two oppositely charged ions Chemical bond created by unequal sharing of electrons

In which quadrant of the abdominopelvic cavity is the stomach located right lower quadrant left lower quadrant left upper quadrant right upper quadrant

Expiration breathing out is how the body removes excessive carbon dioxide from the blood This is an example of excretion of metabolic waste metabolism maintaining boundaries responsiveness

All fungi Oare saprobes digest food extracellularly are parasites Oare symbiotic with plants

Listen Fungi are classified primarily on the basis of Ofeeding structures Omode of nutrition Oecological role Oreproductive structures when they appear in the fossil record

Mycorrhizae are the small roots in the root systems of trees endosymbiotic bacteria associated with plant roots fungus and tree root mutualistic associations Oparasitic fungal infections of tree roots endosymbiotic fungal cells associated with leaves

Listen Which of the following is NOT an example of a Obread mold Oslime mold O yeast mushroom

Listen The club fungi are members of Ascomycota Basidiomycota imperfect fungi Chytridiomycota Zygomycota

Fungi are classified as Oprokaryotes autotrophs decomposers photosynthetic

Listen Lichens are a symbiotic relationship between a fungus and a moss Otwo kinds of fungi a fungus and an algae a plant and an algae

The cells walls of fungi are reinforced with O cellulose Oct lignin

Listen Match each statement with a group of plants Angiosperms Gymnosperms Ferns Mosses 1 the simplest plants the group that first developed good roots and rigid stems 3 pines firs spruces and cedars 2 4 the majority of modern plants had no flowers but

Listen Match each statement with a group or groups of plants Gymnosperms Angiosperms Mosses Ferns a type of plant in which the gametophyte is dominant 2 the simplest vascular plants 1 3 produces seed but not fruits 4 source of most of our food

Listen Which of the following is a difference between plants and Plants have diploid and haploid phases Fungi have cell walls Fungi are autotrophic In fungi zygotes undergo meiosis to produce spores Plants undergo sexual reproduction

What is endosperm male reproductive cells in plants stored food in a seed Ocells that make up the bulk of a pollen grain the fleshy part of a fruit such as an apple or strawberry plant chromosomes

4 Listen What adaptations should one expect of the seed coats of angiosperm species whose seeds are dispersed by frugivorous fruit eating animals as opposed to angiosperm species whose seeds are dispersed by other means A The seed coat upon its complete digestion should provide vitamins or nutrients to animals B The exterior of the seed coat should have barbs or hooks and the seed coat should contain secondary compounds that irritate the lining of the animal s mouth C The seed coat should contain secondary compounds that irritate the lining of the animal s mouth and the seed coat should be able to withstand high acidity The seed coat should be able to withstand high acidity and the seed coat D should be resistant to the animal s digestive enzymes dyanta

Listen Imagine that you wanted to know if speciation is more rapid in plant groups pollinated by bees or hummingbirds To do this you identified 20 genera of angiosperms that contained species pollinated by both types of animals There were substantially more species in the groups that were pollinated by bees What conclusions can you draw from your data The rates of speciation were similar in groups pollinated by hummingbirds and bees B Hummingbirds promoted speciation less than did bees C Hummingbirds promoted speciation more than did bees OA D Each genus should be split into two new genera

Listen Why have biologists hypothesized that the first land plants had a low sprawling growth habit A There was less competition for space so they simply spread out flat OB They were tied to the water for reproduction thus needing to remain in close contact with the moist soil C Land animals of that period were small and could not pollinate tall plants D The ancestors of land plants green algae lacked the structural support to stand erect in air

Listen Spruces and pines both have needlelike leaves with the adaptive advantage A increased surface area increasing photosynthesis B increased surface area increasing gas exchange C decreased surface area reducing water loss D decreased surface area reducing gas exchange

Listen An explorer found a plant that had roots stems and leaves produced seeds This plant sound like a n Ofern Obryophyte angiosperm O moss gymnosperm

Listen Many mammals have skins and mucous membranes that are sensitive to secretions of plants like poison oak Rhus These secondary compounds are primarily adaptations that A decrease competition B foster seed dispersal OC inhibit herbivory D favor pollination

18 Explain in your own words why sexual reproduction can be useful if a protist s environment changes

A Animals called develop their anus first whereas first develop a mouth deutero stomes B proto stomes C blasto porans

Although plant viruses cannot infect humans what are some of the ways in which they affect humans

10 Why do scientists believe that the first organisms on Earth were extremophiles

Select the best answer for the question 1 Which of the following tools would be most efficient for drilling a 7 3 4 inch diameter hole in 4 inch thick steel reinforced concrete O A Rotary hammer drill OB Spud bar O C Diamond core drill D Hole saw O Mark for review Will be highlighted on the review page

eceive I think carefully about the feedback and ask my instructor for clarification if needed I try not to think about the feedback particularly if it is negative I move on to the next

Which of the following is a true statement about Virtue Ethics Aristotle c 350BC Virtue ethics requires a code of conduct to be followed Virtue ethics requires that a person consider the consequences of their actions Virtue ethics requires that all values be compared individually Virtue ethics requires that a person behave in a manner which would generally be recognized as good or of good character

Select the best answer for the question 19 OSHA requires that scaffold platforms be made from what material O A Grade B or higher fruitwood B At least 3 40 plywood O C Scaffold grade lumber OD 20 hardwood lumber

In animals one of the first things to form is the A extremities fingers toes B reproductive system C nervous system D gastric system