Biology Questions

What part of the flower makes the egg cells O A carpel O B ovary O C stamen O D ovule

rding to the endosymbiotic theory why was it adaptive for the larger host cell to keep the engulfed cell alive rather than digesting it as food OA The engulfed cell provided the host cell with adenosine triphosphate ATP OB The host cell was able to survive anaerobic conditions with the engulfed cell alive C The engulfed cell allowed the host cell to metabolize glucose O D The engulfed cell provided the host cell with carbon dioxide

Green algae differ from land plants in that many green algae OA have alternation of generations OB have cell walls containing cellulose OC have plastids OD are unicellular

Which of the following cellular structures is characteristic of amoebas O A cilia O B microvilli o C flagella O D pseudopodia

Listen Where do you look to find moss OA in a grassy field OB up in a tree C in the shade of a tree OD underwater

Which generation is represented by pollen OA spore B sporophyte Oc gamete OD gametophyte

Cnidaria A D H E F A B C D E F G H I J tentacle bud endoderm basal disk cnidocyst nematocyst gastrovascular cavity mesoglea select answer ovary testes mouth tentacle gastrovascular cavity ovary testes bud cnidocyst endoderm nematocyst basal disk mesoglea select answer

Food OUde M Savalli A typhlosole B intestine C gizzard DEE D E F G H I J K seminal vesicles seminal receptacle prostomium hearts pharynx calciferous gland nephridium select answer th J K 00000 intestine nephridium pharynx seminal receptacle hearts calciferous gland gizzard E

helps to prevent excessive water loss through the skin Glycolipids secreted by keratinocytes into extracellular spaces The size and shape of the cells that make up the stratum spinosum as well as the thick bundles of intermediate filaments The thickness of the dermis which prevents water from passing through it Fat associated with skin prevents water loss Question 35 2 points Listen Match the cells found in the epidermis with their description Cells that produce melanin located in the deepest layer of the epidermis Macrophages that ingest foreign molecules and are key activators of the immune system The predominant cell type in the epidermis produce the fibrous protein keratin Sensory touch receptors 1 Dendritic cells 2 Keratinocytes 3 Melanocytes 4 Tactile cells

Select ALL of the following that are true regarding the functions of the integumentary system Dendritic cells and dermal macrophages phagocytize foreign invaders Melanin provides a chemical barrier against UV radiation damage Skin secretions are basic which slows bacterial multiplication The skin is a physical barrier as it is continuous stratified keratinized and blocks most water and water soluble substances

swayback lordosis kyphosis scoliosis Question 40 2 points 4 Listen A congenital abnormality in which the right and left halves of the palate do not fuse medially is called colles palate

Which of the following would indicate that the dermis has been previously stretched to the point of tearing O The appearance of visible silvery white scars Tension lines in the area disappeared There was an episode of acute pain due to the large number of tactile corpuscles Permanent black and blue marks due to the blood vessels in the dermis rupturing

bone deposit and resorption rickets Paget s disease osteoporosis osteomalacia Question 20 2 points Listen order characterized by excessive and haphazard Match the type of epithelia with its description Multiple layers of cells with a basal layer of cuboidal or columnar cells and apical cells that vary in appearance depending on the degree of stretch in the organ Multiple layers of cells but only the apical layer is columnar A single layer of cells that vary in height making it appear to be multiple layers A single layer of cells that 1 Pseudostratified columnar epithelium 2 Simple columnar epithelium 3 Stratified columnar epithelium 4 Transitional epithelium

Which of the following is the abnormal curve often seen in pregnant women as they attempt to preserve their center of gravity toward the end of the pregnancy hunchback lordosis kyphosis scoliosis

Regeneration repair Regeneration fibrosis Restoration striae Mitosis inflammation Question 38 2 points 4 Listen The first step in tissue repair involves replaces it with scar tissue proliferation of fibrous connective tissue inflammation formation of scar tissue

atement regarding adipose tissue Its primary function is nutrient storage Most of the cell volume is occupied by the nucleus Mature adipose cells are highly mitotic It is composed mostly of extracellular matrix Question 26 2 points 4 Listen Select ALL of the following that are true of connective tissue Connective tissues are highly vascularized All connective tissues arise from an embryonic tissue called parenchyma Connective tissues have three main components ground substance fibers an cells ributed of the primary tissues

Blanching Cyanosis Sapphirosis Erythemia Question 33 2 points Listen The hypodermis acts as a shock absorber because it has no delicate nerve endings and can therefore absorb more shock O it is primarily composed of adipose tissue ate a protective mucus

underlying connective tissue proper and are therefore simple organs and lining membranes consist of an epithelium bound to an True False Question 16 2 points 10 Listen Where are apocrine glands located in the human body Obeneath the flexure lines in the body in all body regions and buried deep in the dermis in the palms of the hands and soles of the feet in the

elastic connective tissue hyaline cartilage dense fibrous connective tissue fibrocartilage Question 14 2 points Listen with bone during fetal Long bones increase in length during infancy and youth through the secretion of bone matrix into the medullary cavity appositional growth at the epiphyseal line interstitial growth at the epiphyseal plates

fibroblast osteoblast hemocytoblast Question 30 2 points Listen Which layer of the epidermis is made up of stem cells that divide to produce m the cells of the epidermis Ostratum lucidum Ostratum corneum stratum granulosum

living cells lacunae blood vessels organic fibers Question 28 2 points Listen Match the connective tissue with its description A loose connective tissue with thin reticular fibers that form a mesh like stroma Consists primarily of closely packed parallel collagen fibers fibroblasts are the predominant cell type Gel like matrix with all three fiber types loose fibers with increased ground substance fibroblasts are the predominant cell type Consists primarily of closely packed irregularly arranged collagen fibers fibroblasts 1 Areolar connective tissue 2 Dense regular connective tissue 3 Dense irregular connective tissue 4 Reticular connective tissue

Treatment for severe burns includes which of the following Select ALL that apply Supplementary nutrients through gastric tubes and IV lines Replacement of lost fluid through IV Antibiotics Debridement of the burned skin

00 Menisci of knee vertebral discs and pubic symphysis Articular costal respiratory and nasal cartilages External ear and epiglottis Question 24 1 5 points 4 Listen Match the type of cartilage with its description The most abundant type of cartilage fine collagen fibers form an 1 Elastic cartilage 2 Fibrocartilage 3 Hyaline cartilage imperceptible matrix Cartilage with thick collagen fibers it has the greatest tensile strength Cartilage with shunda 1 Elastic cartilage 2 Fibrocartilage 3 Hyaline cartilage

Which of the following is correct regarding skin cancer Melanomas make up about 1 of all skin cancers but cause a large majority of the skin cancer deaths Basal cell carcinomas are the least common of all skin cancers but are easily cured by surgical excision Squamous cell carcinomas have a good prognosis because they grow very slowly and rarely metastasize Most tumors that arise on the skin are malignant

They have a high regenerative capacity and can typically replace lost cells as long as they have adequate nutrition They exhibit polarity with an apical surface exposed to the exterior or a cavity and a lower basal surface Adjacent cells typically are bound together by gap junctions They are all avascular and supported by connective tissue Question 22 2 points 4 Listen Ductless glands that secrete their products directly into the blood are classified as glands O endocrine ceruminous exocrine

Decreased vitamin D synthesis Increased hair growth Increased oily appearance and more acne Increased cooling of the skin Question 18 2 points Listen ty causes which of the following What causes osteoporosis osteoclasts out pace osteoblasts often due to low hormone production of the ovaries poor posture abnormal PTH receptors

Wolff s law states that vertical growth of bones is dependent on age bones grow or remodel in response to the demands placed on it the ratio of osteoblasts to osteoclasts directly correlates with the diameter of the bone the function of bone is dependent on its shape

chondrocyte osteoclast osteoblast Question 11 2 points 10 Listen Which of the following is the first step in intramembranous ossification The cartilage matrix begins to deteriorate A bone collar forms around the cartilage model An ossification center forms in the fibrous connective tissue

cell types with their function Monitors and maintains the mineralized bone matrix Mitotically active stems cells that divide to produce new cells Synthesizes the bone matrix Resorbs the bone matrix 1 Osteoblast 2 Osteoclast 3 Osteocyte 4 Osteogenic cells

The periosteum covers all of the external surfaces of bones except for joint surfaces True False

Which structure allows long bones to continue to grow until the end of adolescence epiphyseal plate osteon lacuna eninhyseal line

Compact bone is covered on the outside by epiosteum enterosteum epichondrium endochondrium and on the inside by

Which layer s of tissue is are damaged in a second degree burn dermis both the epidermis and upper dermis the entire thickness of skin epidermis

Yellow bone marrow contains a large percentage of elastic tissue fat perforating fibers blood forming cells

Pedigree B is most likely autosomal dominant What is are the genotype s of the parent s that transmitte the mutant allele s to their offspring Select all that apply AA Aa aa AY aY 4

While travelling along the Amazon River James contracted a case of amoebic dysentery caused by Entamoeba histolytica Luckily James doctor prescribed just in case he encountered this nasty protozoan Tamiflu Quinoline Nystatin J

Question 7 of 22 A population of frogs is split between two ponds during a long term drought Pond A has several predators that can catch frogs Pond B lacks predators and has plenty of food Which adaptation is most likely to increase over time in pond A s frog population OA A larger body size B The ability to swim faster C The ability to croak more loudly to attract mates D The preference for worms as a food source instead of insects 20

Question 2 of 22 A population of lizards with two common phenotypes for color is introduced into an environment One phenotype is brown and the other is green The environment is typically dry most of the year with brown grasses and soil Hawks and coyotes hunt the lizards for food If the environment remains stable which phenotype is likely to become more common and why A Brown because brown lizards will be more likely to survive and reproduce B Green because green lizards will become better at hiding from predators O C Brown because this phenotype was caused by a mutation that can be inherited D Green because green lizards will have less competition for resources

Experiment 3 Enzyme Denaturation by Temperature Remember browning reaction Not browning no reaction Did the reaction still occur at room temperature Did the reaction still occur after boiling Did the reaction still occur after chilling Did the reaction still occur after freezing What was happening to the enzyme in the reactions that didn t occur

Experiment 2 Enzyme Denaturation by pH What were the colors of each of your solutions on pH paper Which solutions were acidic basic or neutral in pH The following questions are about what happens when you soak the fruits in each of the three solutions then leave them out to brown Remember browning reaction Not browning no reaction Did the reaction still occur after soaking in neutral pH Did the reaction still occur after soaking in acid Did the reaction still occur after soaking in base

Type in the blanks and submit this worksheet through the assignment tab in College Paste pictures below the words Insert Picture Below Resize pictures as needed to fit at least two pictures per page Student Name Experiment 1 Enzymes Require Substrates Which substrate was absent from the reaction under water Did the browning reaction occur under water Go back to the pre lab What is the brown chemical called Does the brown chemical mean that the foods are rotting

Correct art B Previous Answers AA Aa Autosomal dominant Autosomal recessive X linked dominant O DO Pedigree C 00 DO OU DO Do 50 60 1866 Pedigree D DO OD 60 60 edigree A is most likely X linked recessive What is are the genotype s of the parent s that transmitted the mutant allele s to their offspring elect all that apply

hich of the following selection represents selection observed in El Garrapater Selection for one extreme and against the other extreme DE Phenotype Trait of individuals A of individuals Selection against the extreme phenotypes at both ends of trait distribution B of individuals C B O A Population after selection Original population Directional selection Population after selection Phenotype Trait Phenotype Trait Selection for the extremes and against the mean Original population Stabilizing selection Population after selection Original population Disruptive selection

11 Mention three differences between bacteria and archaea

Please write about painful skin issues caused by radiation therapy 1

talks about how men are at an increased risk for death than women who have been diagnosed with melanoma

high levels of estrogens induce closure of the epiphyseal plate rts in both sexes during puberty but True False Question 4 3 points Listen Match the bone diseases with their correct description Bone deposition and resorption is excessive and haphazard Bone is poorly made with excessive spongy bone and poor mineralization Bones poorly mineralized but osteoid is otherwise normal Bones are soft and weak Bones resorbed faster than deposited Bone matrix is 1 Osteomalacia 2 Osteoporosis 3 Paget s Disease

A person with poor bone mineralization will always have low blood calcium as well True False Question 6 3 points Listen Match the homeostatic imbalance of the spinal column with the correct description v kyphosis lordosis 1 2 3 abnormal lateral curvature in the thoracic region dorsally exaggerated thoracic curvature exaggerated lumbar curvature

A freshwater biome is defined by the lack of A dissolved oxygen C biodiversity B turbulence D dissolved ions

When considering the energy dynamics of an ecosytem NPP GPP dessication B respiration C photo synthesis