Plant Physiology - General Questions and Answers

The spongy mesophyll of a leaf contains relatively few cells surrounded by large spaces These spaces are directly connected to the many stomata in the lower epidermis of the leaf Which of the following are likely to be functions of the spongy mesophyll layer Select all that apply Holding oxygen and water vapor to be released from the leaf Carrying out cellular respiration for the epidermis Holding carbon dioxide needed for photosynthesis Carrying out mitotic cell division to produce more leaf cells 4 of 8 QUESTIONS A

Which tissues carry nutrients to the ground tissues of a plant Select all that apply Xylem Meristem Phloem Epidermis 3 of 4 QUESTIONS

Plants can release sugars to create a hypertonic environment in their cells that promotes water flow its cells A into the nucleus of B out of C around D into

The greater the surface area the greater the number of present on a leaf which leads to more transpiration A veins C xylem B cuticles D stomata

To compensate for the loss of buoyancy in an aquatic environment and to counteract the impacts of gravity in a terrestrial biome plants need and cellulose in their cell walls J

Compare the processes of aerobic respiration and photosynthesis by choosing the appropriate choices to complete each of the sentences In aerobic respiration glucose is Select In photosynthesis Select In photosynthesis Select In aerobic respiration Select Select Select water glucose carbon dioxide V V is Select all the way to Select V all the way to glucose is produced from the splitting of Select serves as the terminal electron acceptor producing

A cell is performing aerobic respiration After glycolysis but before pyruvate processing where is most of the energy that was in the original glucose now found O In the 2 net ATP produced O In the two 3 carbon pyruvate molecules produced O In the CO2 produced In the NADH molecules produced

MULTIPLE CHOICE True or false Denitrification returns nitrogen to the atmosphere A B True False

MULTIPLE CHOICE Which of the following is the form of nitrogen that can be used by plants A B ammonia nitrates C nitrogen monoxide

In what way is nitrogen important to life on Earth Select all that apply A It is used in proteins BO U It is used in making DNA Plants use it to make glucose D It is used to make chlorophyll in plants

What is the movement of water vapor from the leaves of plants called A B condensation evaporation sublimation

Where are nitrogen fixing bacteria found A in the air B on the leaves of plants D on the roots of plants in the plant stems

36 Tight junctions are composed of what type of proteins A cadherins B integrins C fibronectins D claudins E connexins

21 What component helps guide the direction of cellulose synthesis deposition in plant cell walls a Collagen b Hyaluronic acid c Microtubules d Actin filaments e Glycosaminoglycans

1 To which major group of plants as studied in BIO 215 does the C fern belong angiosperms gymnosperms seedless vascular plants or bryophytes 0 5 pt ANSWER a Which shared plant characteristics caused you to select the major plant group that you did You need to list at least 2 diagnostic characters 1 pt ANSWER 2 You grew your ferns on an artificial substrate nutrient agar and under controlled environmental conditions using artificial light a Which energy wavelengths did the combination of cool white lights and blue grow lights provide so the gametophyte plants could efficiently photosynthesize 1 pt ANSWER b The growing C fern gametophyte plants are green and photosynthetic So they are capable of making their own food What does the nutrient agar supply that is required for healthy plants 0 5 pt ANSWER

What is the relationship between photosynthesis and cellular respiration A The products of photosynthesis are the reactants of cellular respiration B The products of cellular respiration and photosynthesis are the same C There are no similarities between the two O O O

Ground tissue has a different name in each organ of the plant Which of the following pairs the correct location with the ground tissue type A stem mesophyll C roots cortex A B leaves pith D flower cortex

Which tab contains the Navigation Pane option in MS Word 2013

Xylem and phloem tissues are always positioned adjacent to one another within the body of a plant This positioning is completely accidental so water from the sieve elements can be used to dilute the solid sugars inside the tracheary elements creating a slushy solution that can move easily and rapidly though the tracheary elements because the relatively pure water in tracheary elements is used to help set up a pressure gradient in the nearby sieve elements that pushes nutrients through the sieve elements for damage control in case an air bubble forms in the tracheary stream The companion cell of the nearby sieve element directs the repair of the air bubble obstruction

An angiosperm seed is made up of a diploid embryo triploid endosperm and diploid seed coat diploid embryo haploid nutritive tissue and a haploid seed coat O haploid egg haploid endosperm and a diploid seed coat diploid zygote diploid endosperm and a diploid seed coat

fused synangia microstrobili mature fruit modified strobilus Question 11 1 point 4 Listen The adult gametophytes of sporophyte dominant plants and of bryophyte cuticle stomates vascular tissue xylem and phloem and roots True

Why is ATP an important molecule in metabolism O It is extremely stable OIts hydrolysis is endergonic O It is readily obtained from the organism environment It releases energy via hydrolysis and phosphorylation Its phosphate bonds are easily made and broken

Which of the following molecules directly participates in the process of translation O mRNA tRNA and rRNA O mRNA DNA and rRNA O mRNA tRNA and DNA OmRNA tRNA DNA and rRNA

1 Which of the following has more internal energy A Hot cup of water or a cold ocean B A hot frying pan or a cold frying pan C 25 kg of water or 25 kg of gold at thermal equilibrium D Fast moving or slow moving atoms

A cross section of a chloroplast showing membranes and the spaces between membranes is shown in Figure 1 X Grana Stroma Thylakoid A Figure 1 A diagram of the cross section of a chloroplast a Describe the major process that takes place in this eukaryotic organelle b Explain the function of the structure labeled with an X in Figure 1 c On the template in the space provided for your response represent the location where carbon fixation takes place by writing CF and the location of the electron transport proteins by writing ETP d Explain how the shape and stacking of the thylakoids contributes to the rate of carbon fixation by the chloroplast 0

The most abundant structural primary metabolite in the body sporophyte or gametophyte of any plant is Onitrogen Ocellulose Oglucose sporopollenin

8 True or False Lignin is made up of mostly carbon rings 1 pt 9 What are the constraints for learning 1 pt a Learning will always decrease reproductive success of the organism b Learning requires time and energy c If energy can instead be invested in reproduction and survival to increase fitness then the benefits of learning are reduced d Learning reduces the uncertainty of the environment

30 Name a heart valve that would be closed during ventricular systole 31 Which chamber of the heart provides the most forceful contraction 32 What percentage of blood is made up of erythrocytes leukocytes and platelets

The movement of water across a membrane from regions of high water concentration to regions of low water concentration is called osmosis O diffusion O facilitated diffusion O active transport 4 2 p

When a person exercises small blood vessels called capillaries near the surface of the skin increase in diameter get larger This change allows the body to be cooled Which term best illustrates these statements 0 00 0 20 A C B excretion homeostasis Speed 1x Paused

Which of the following do prokaryotic and eukaryotic cells have in common Ribosomes Mitochondria A nucleus O Chloroplasts

How would you induce sporulation O add more cells lower the temperature O higher the pH O lower the pH O increase temperature

Which of the following do typical plant cells have that typical animal cells do not F Mitochondria Chloroplasts Nuclei

Which choice may lead to a decrease in dissolved oxygen within a body of water Turbid water Thermal pollution Wind Photosynthesis

What adaptations do plants have that allow them to survive on land Please cite 2 references No peer reviews and or comments Please for an original answer No plagiarism please I will be checking P

Order the following steps F BUSTION JELS 5gm co Carbon Dioxide Atmosphere Twiny 3 ANIMALS PLANTS Oncompation letresudove biosphere and atmosphere FOSSILS OCEAN CaCO mestone thelle CARBON DIOXIDE IS IN THE ATMOSPHERE Animal releases carbon dioxide by breathing out An animal eats the plant to get its E glucose a carbon containing carbohydrate Plants perform photosynthesis E transforming carbon dioxide and water into glucose and oxygen Animal performs cellular respiration E to convert glucose and oxygen into ATP water and carbon dioxide Carbon dioxide is absorbed by plants CARBON DIOXIDE IS IN THE ATMOSPHERE

The carbon cycle includes photosynthesis respiration combustion and decomposition only animals carry out cellular respiration O True O False

Question 10 of 20 Which best describes the way sunlight creates global ocean currents A Sunlight causes uneven evaporation between the poles and equator Clouds form and precipitation follows B Sunlight warms the equatorial waters more than polar waters The uneven heating leads to convection J OC Sunlight warms the ocean equally over Earth s surface The deeper water is colder resulting in convection SUBMIT

C 00 22 62 36 An M7 5 earthquake strikes this region and is caused by motion along the labeled fault Examine the image and answer the following questions Recently deposited marine sands and silts Ocean A Sandstone and mudstone Fault D water table Granite bedrock Create an original post that answers the following questions 1 Which house is at the lowest risk of earthquake damage 2 Which house is most at risk of earthquake damage 3 Explain why you selected the houses you did in questions 1 and 2 4 What types of hazardous phenomena e g liquefaction tsunami landslide etc would expect at the other two houses you didn t select in questions 1 and 2 that would make it an earthquake hazard

Which of the following demonstrates an example of aerobic respiration A Lactic acid fermentation B Oxidative phosphorylation C Alcoholic fermentation D Glycolysis

photosynthesis and cellular respiration take place A Both occur in the nucleus B Mitochondria and chloroplast respectively C Only photosynthesis occurs in plants not cellular respiration D Chloroplast and mitochondria

What 3 things do plants need for the process of photosynthesis nlight soil and water Water soil and oxygen Sunlight oxygen and sugar 28 2 Sunlight carbon dioxide and water

5 Measure 15 ml of the pink phenol red solution and pour into Tube 2 This tube will be used as a reference for color comparisons 6 Obtain two 8 cm pieces of Elodea Hornwort from the instructor and place one piece into tubes 3 and 4 containing the yellow phenol red solution 7 Use your drinking straw to gently push the plant piece into the phenol red solution until it is completely submerged in the solution 8 Cover the top of each of the four test tubes with parafilm 9 Use aluminum foil to completely all sides top and bottom cover tube 4 containing the Elodea plant to prevent light from reaching the plant Leave the other test tube with the Elodea Hornwort plant uncovered 10 Place all tubes under direct light from the lamp source for 3 hours or overnight and record the color change While you are waiting for the results answer the following questions 1 Write a hypothesis for this experiment 2 In which tube s do you expect to observe a color change What color change are you expecting 3 What will this change in color indicate in terms of utilization of CO and in terms of whether photosynthesis occurred

Another word for a producer plant that makes it s own food is

Biologist often use chemical equations to describe the reactions that occur inside of cells Which of the following is the correct equation for PHOTOSYNTHESIS CO glucose H O O light energy CO light energy H O O glucose O2 light energy H O CO2 O H O CO glucose light energy glucose

What are the main parts of a mature eudicot or monocot embryo Chapter 22 Checkpoint 4

Which of the following is are NET products of glycolysis ADP NAD Pyruvate All of the above

Flowering time is determined by genes in mustard plants The graph shows how long it took for the plants to flower in 1997 and 2004 There was a four year drought between 2000 and 2004 2004 Year 1997 30 Mustard Plant Flowering Times in 1997 and 2004 H 40 50 of population 2 50 60 Days to first flowering Which statement explains the data shown in the graph 70 50 of population 80 OA The drought selected for plants that flowered earlier in the year OB The drought had little effect on flowering time OC The drought increased the variation in flowering time D The drought selected for plants that flowered later in the year

4 In the diagnosis of Case 4 the symptoms are consistent with a disease that directly affects which structure or tissue of the plant Vessel elements Plant Species Flame azalea Rhododendron calendulaceum Field Notes Physical Symptoms Vegetative parts of plant appear normal Few young plants in the area Flowers persist don t mature into fruit some damage to floral parts Soil pH normal Soil nutrient levels normal Few young plants observed almost no seedlings elect the correct option and then select the Submit button Apical meristem Primary xylem Laboratory Metabolic Analysis Photosynthesis normal Transpiration normal Ovules present in pistil Extremely low airborne pollen counts of species Anther

You cover your plants with clear plastic during a cold snap and you forget to remove the plastic A week later after temperatures have warmed back up you realize what you have done and check on the plant It is not looking so good With regard to photosynthesis what most likely happened The plant could not take in sugar molecules The plant makes sugar molecules it does not bring them in The stomatal pores close The plant could not absorb the sun s rays The plant could not absorb water