Human Physiology - General Questions and Answers

The BMR Basal Metabolic Rate comprises which percentage of daily energy needs O 25 50 O 60 80 O 100 O 10

Which of the following IS a characteristic of life A Photosynthesis B Homeostasis C Replication D Locomotion

Fill in the blanks using a Punnett square Use a Punnett square to calculate the odds of a An offspring with green freckles if green freckles are dominant yellow freckles recessive and the parents are both heterozygous b An offspring with green freckles if green freckles are dominant yellow freckles recessive and one parents is heterozygous one is homozygous with yellow freckles c An offspring with green freckles if green freckles are dominant yellow freckles recessive and one parents is heterozygous one is homozygous with green freckles

The fusion of synaptic vesicles depicted below occurs when A

If an individual consumes water contaminated with thuman feces which of the following diseases the could contract SELECT ALL THAT APPLY Amebiasis Malaria Leishmaniasis Giardiasis

Vinter 2022 2023 es SC BIOL1001 M N O P Biology

The Article says Take the topic of planet Earth for example A college professor who studies planets would be a reliable source So would a NASA scientist But check whether other experts agree with his or her opinions Experts are people who A do not spread conspiracy theories B know a lot about something C are not very good at something

Place the following events in the correct sequence L MAAAAAA XXXXXXX MMXXXXXX wwwwwwww wwwwwww Drag the text blocks below into their correct order Antigen Binding Clonal Expansion Antibody Synthesis B cell Activation Antigen Processing and Presentation Plasma Cell Development

Second messenger cyclic AMP CAMP is synthesized from ATP by the activity of the enzyme adenylyl cyclase Cyclic AMP n turn activates protein kinase A PKA also called CAMP dependent protein kinase which is responsible for most of the effects of cAMP within the cell Determine the correct steps in the activation of PKA and then place them in the correct order starting after the adenylyl yclase reaction Answer Bank The regulatory subunits dissociate from the catalytic subunits Two CAMP molecules bind to each PKA regulatory subunit Cytosolic CAMP concentration increases Cytosolic CAMP concentration decreases Each regulatory subunit is activated as the two CAMP molecules release The free catalytic subunits inct with proteins to phosphorylate Ser or

How do you best learn For example auditory kinesthetic hands on visual independently in groups etc When you are lost or confused in class what are you most likely to do Is this helpful or productive Joornir

What kind of bacteria can form spores O Staphylococcus Streptococcus Streptobacillus Coccobacillus

5 A family has three children none of whom are twins a What is the probability that they have two daughters and a son b What is the probability that they have at least one son and one daughter c Developing Intuition Suppose that we know that their oldest child is a girl Based on this additional information what is the probability that they have two daughters and a son

C The nervous system D The circulatory system E The respiratory system F The digestive system G The urinary system

References Course Handout 2 LRS 2018 Chapter 2 Exploring Relationsh

Which of the following correctly describes a second messenger A protein such as a G protein that is activated upon ligand binding to receptor An enzyme such as Adenylate Cyclase that is activated upon ligand binding to receptor An enzyme responsible for the cellular effects of a signal transduction pathway like Protein Kinase A or Glycogen Phosphorylase A soluble cytoplasmic molecule produced in response to ligand binding that activates a cellular response

Cell adhesion molecules are important components of plant cell walls Extracellular matrix tight junctions bacterial cell walls

Where would you find the base pairs encoding the translation sto a A collagen gene structure and expression DNA Primary transcript Mature mRNA Protein O 5 UTR exon 1 intron 1 exon 2 Exon 1 Intron 1 Promoter 5 Exon 1 5 meG Cap ATG Exon 1 Intron 1 5 UTR Exon 2 Intron 2 Transcription AUG N Exon 2 AUG Exon 2 Met Intron 2 Stop Exon 3 C Poly A Stop signal Exon 3 Stop AAUAAA Exon 3 3 AAUAAA AAAAAAAA 3 Poly A tail 3 UTR

Which of these statements is true O Single haploid n sets of chromosomes in ovum and sperm unite during fertilization forming a haploid n single celled zygote O Sexual life cycles among different types of organisms are identical with respect to the relative timing of meiosis and fertilization O In humans the 23rd pair the sex chromosomes determines whether the person is female XXX or male XY O At sexual maturity ovaries and testes produce diploid gametes by meiosis

Match the change in gas composition with the response disregard weak responses A Po increases B P co increases C Po decreases D Pco decreases Arterioles systemic constrict pulmonary dilate

When was all segregation by law called de jure segregation ended O 1940 1950 O 1970 Points 1 O 1960

8 This organelle contains chromatin fibers which form chromosomes carries the genetic instructions for the cell 9 This organelle receives products from the ER via transport vesicles is the shipping and receiving center of the cell

E coli a normal gut bacteria uses fumaric acid a compound found in plants as a final electron acceptor in respiration This is an example of oxidative phosphorylation glycolysis O aerobic cellular respiration

8 The image on the left is a mitochondrion and the image on the right is a chloroplast In each of the images above identify where the highest concentration of protons H would be found VR Select one O a 2 and 4 Ob 2 and 3 O c 1 and 3 O d 1 and 5

3 During transcription a strand of DNA TACGAT will be transcribed into a strand of RNA O TACGAT O ATGCTA AUGCUA O AAAAAA

biological components of an environment An ecosystem is generally an area within the natural environment in which physical abiotic factors of the environment such as rocks and soil function together along with biotic organisms such as plants and animals to create a stable system Ecosystems usually form a number of food webs The fundamental idea behind ecosystems is that there are interactions not only between organisms of different types but also between organisms and their environment Thus the success of a population a group of organisms in an area belonging to the same species in a certain ecosystem depends on two things Fig 1 An bis eats a frog that it plucked from the water First the success of a population depends on whether or not the environment abiotic factors can support the species that makes up this particular population For example frogs need a great deal of moisture to survive so frog populations are more successful in wet climates Second the success of a population depends on the way that species interacts with other organisms In other words every population depends on the entire community of different populations For example frogs can only live where there are large insect populations otherwise they starve However frog populations will be more or less successful depending on the size of frog eating predator populations in the area too this includes the number of wolves snakes and large birds which depend on frogs for food Comprehension Questions 1 According to the text what is an ecosystem An ecosystem is gen 2 According to the text what is a population 3 What are the two factors which control the success of a population in an ecosystem

oring oring conduct to give or receive informatio quiz Please do not move away from Quiz Activity log and points may be 4 Question 8

At an archeological site you discover a bone that is cylindrical in shape about one inch long and a quarter of an inch wide Choose the correct classification irregular sesamoid long short

Date the e mple 18 Fitness Comp Use s 1 4 from above 2 3 Activity Skill Exercise Reps Sets Details of movements mileage quantity rotation etc 10 min 5 squats 5 push ups 6 lunges 8 Diamond sit ups 3 miles walk 3 min jog 3 min HR bpm Heart rate 165 bpm 155 bpm Time Use minutes 10 min 29 min

Which of the following are possible causes of an elevated PCV Incorrect answers will be negatively scored to prevent clicking all options a Aplastic anaemia b Smoking c Altitude d Cirrhosis of the liver e Dehydration f Iron deficiency g Vitamin B12 deficiency h Chronic heart disease i Natural effect of aging j Kidney disease k Chronic obstructive pulmonary disease COPD I Haemorrhage 3 hours post haemorrhage m Chemotherapy n Haemolytic anaemia Pregnancy O

ou take a sample of blood from Patient X and determine the Packed Cell Volume by centrifuging whole blood in a glass capillary tube The total height of the blood is 15mm nd the height of the column of RBCs is 2mm Calculate the Packed Cell Volume and give your answer as a percentage to 2 decimal places

Which of the following are possible causes of a lowered WBC count Incorrect answers will be negatively scored to prevent clicking all options a Bacterial infection b Bone marrow failure c Heart attack d Myeloproliferative disease e Parasites f Trauma g Corticosteroids h Leukaemia i Asplenia j Chronic stress k Penicillin use I Kostmann syndrome m Allergy n Acute haemorrhage o HIV infection

Pyruvate dehydrogenase is an enzyme used by bacteria to convert pyruvate into acetyl CoA Would an organotrophic bacterium lacking this enzyme still utilize the TCA cycle Explain I

What is the haploid number of chromo somes for aloa vera 1 Point Aloe Vera Plant Karyotype Mi 7 ARA

Endocytosis their correct category of endocytosis and exocytosis Exocytosis Amoeba extending pseudopods to engulf food particles Removal of waste material from the cell Release of the neurotransmitter acetylcholine into the synaptic cleft The uptake of cholesterol by liver cells Requires the use of ATP Endocytosis and Exocytos Phagocytosis of bacterial cells by white blood cells Secretion of tears into the lacrimal ducts

Summarize It Organize Create a graphic organizer to summarize the functions of the muscular system and how it interacts with other organ systems

Which of the following is not a product of fermentation Lactic acid Carbon dioxide Ethanol Pyruvic acid Acetic acid

For this DQ assignment gather relevant research information then write a summary on how media and celebrities play a role in the increased prevalence of eating disorders Include examples of advertisements that promote an idealized image and evaluate the impact that these campaigns may have in promoting unhealthy behaviors When you watch television or meander the Internet can you identify recent ad campaigns that showcase a variety of body shapes and sizes Write about if and how these ads might change beauty standards and norms that promote unhealthy behaviors in industrialized nations Find relevant references academic references preferred and don t forget to meet and list the word count

Three layers of connective tissue that protect the brain and spinal Largest part of the brain Responsible for speech learning problem solving sensory and artistic and musical ability

What ended the internal conflict in Bosnia and Herzegovina in 1945 O The end of World War I O The end of World War II Creation of the state of Yugoslavia

of Human Development Think about the lifespan and make a list of what you would consider the basic periods of development How many periods or stages are on your list Perhaps you have three childhood adulthood and old age Or maybe four infancy childhood adolescence and adulthood Developmentalists often break the lifespan into eight stages Prenatal Development conception gestation Infancy and Toddlerhood birth to 2 yrs Early Childhood 3 yrs 5 yrs Middle Childhood 6 yrs 11 yrs Adolescence 12 yrs 18 19 yrs Early Adulthood 20 yrs mid 30s Middle Adulthood late 30s to mid 60s Late Adulthood 65 yrs 79 yrs Instructions Match the description with the important milestone observed during or by the end of the period of human development 1 Initially have interesting conceptions of size time space and distance such as fearing that they may go down the drain if they sit at the front of the bathtub Keen sense of hearing but very poor vision 2 3 Preschool years consisting of the years which follow toddlerhood and precede formal schooling 4 Dramatic growth and change 5 harder time remembering and attending to information 6 Skin continues to lose elasticity reaction time slows further muscle strength and mobility diminishes hearing and vision decline and the immune system weakens 7 All the major structures of the body are forming 8 Love and work are primary concerns at this stage of life 9 Begins make believe play 10 Dresses and undresses without help 11 Recognizes the speakers sound and calms down when spoken to 12 dramatic physical change marked by an overall physical growth spurt and sexual maturation known as puberty 13 At our physiological peak but are most at risk for involvement in violent crimes and substance abuse

Researchers investigating the protein composition in mice have identified a new protein and found evidence of sulfur containing cysteine at regular intervals in its primary structure Which of the following best describes the most direct significance of this finding A B C D The secondary structure of the protein will include tightly would alpha helices but no beta sheets The tertiary structure of the protein likely contains a relatively high number of bends and angles The protein will form a relatively highly stable tertiary structure The dietary intake of mice must include the regular ingestion of cysteine

The induced fit theory aims to explain how the interactions between an enzyme and a sub strate facilitate the catalysis of chemical reactions Which of the following properties of enzyme substrate interaction best explains enzymatic catalysis according to the induced fit model A Environmental conditions can alter the affinity between a substrate and an enzyme by changing the conformation of the enzyme B C D The interactions between an enzyme and a substrate depend on both structural and chemical compatibility and are therefore highly specific Conformation changes in both the enzyme and the substrate due to their chemical in teractions lower the activation energy of the catalyzed reactions Enzymes remain chemically unaltered between cycles of enzymatic catalysis while sub strates are transformed into products

6 Which of the following is a symptom of early stage Alzheimer s disease They may talk less to avoid making mistakes They cannot remember so they may make up something They may refuse to eat or drink They may revert to speaking their first language 7 Which type of dementia is caused when blood clots block small blood vessels in the brain and destroy brain tissue O Vascular dementia O Alzheimer s disease Normal pressure hydrocephalus Pick s disease 8 What is the longest stage of Alzheimer s disease Early stage Middle stage Late stage End stage 4

Potential Area of Investigation 3 narrow topic Describe what you would like to know more about the topic Why do children throw a fit when they lose a game Explain why you are interested in this Anger at the game could cause nice expensive things to break Express the narrowed topic as a research

6 What is a precursor cell of macrophages histiocytes A Langerhans cell B Dendritic cell C Kupffer cell D Monocyte Which is main protein of reticular fibers A Type I collagen B Type II collagen C Type III collagen

1 Each of the following statements concerning the basement membrane is true EXCEPT A separates epithelium from the underlying connective tissue B is absent in some epithelia C contains type IV collagen and laminin D serves for epithelial cell attachment E takes part in nutrition of epithelium which type of epithelium is adapted to protect underlying tissues from abrasion and friction A simple squamous B stratified squamous C transitional n simple cuboidal

Glycolysis occurs in the and therefore it does not require A mitochondria B chloroplast C stroma

ASS All changes saved ion Scientists have Look at your model and think about the relationship between a series of under a hermetically oxygen and carbon dioxide in the sealed jar Which of these ery similarly when candle or mouse the statements is true Plants and animals use oxygen during respiration me To O Plants use oxygen during photosynthesis Plants release only carbon dioxide during photosynthesis O Plants and animals release oxygen during respiration

53 In mammals which of the following vessels transports blood from the lung back to the heart A pulmonary artery B pulmonary vein C superior vena cava D coronary artery E pulmonary trunk 54 Imagine that blood did not contain any dissolved proteins What would likely happen when this abnormal blood flows through a capillary bed A Nearly all of the fluid in the blood would move out of the capillaries B None of the fluid in the blood would move out of the capillaries C Some of the proteins in the interstitial fluid would flow into the capillaries D The blood would flow normally through the capillaries E There is more than one correct choice provided 55 The stem cells found in the red marrow inside bones A phagocytize bacterial cells B are primarily important in blood clotting c are responsible for an immune response D can differentiate into all blood cells and platelets E None of the above

Evidence indicating that LDL is internalized by a receptor-mediated mechanism includes O a. degradation of LDL in lysosomes Ob. inherited mutations in the human population O csaturable LDL binding to cells O d. all of the above