Phloem - Study guides, Revision notes & Summaries

1 (a) Fig. 1.1 shows two cubes that represent a large and a small multicellular plant. Fig. 1.1 Large multicellular plant Small multicellular plant Length = 2cm Width = 2 cm Depth = 2cm Surface area : volume = 6:1 (i) Using the data provided in Fig. 1.1, calculate the surface area : volume of the large multicellular plant. Surface area: volume = ..........................................................[2] (ii) Explain why a large multicellular plant needs a transport system but a ...

(a) Fig. 1.1 shows two cubes that represent a large and a small multicellular plant. Fig. 1.1 Large multicellular plant Small multicellular plant Length = 2cm Width = 2 cm Depth = 2cm Surface area : volume = 6:1 (i) Using the data provided in Fig. 1.1, calculate the surface area : volume of the large multicellular plant. Surface area: volume = ..........................................................[2] (ii) Explain why a large multicellular plant needs a transport system but a sm...

the calvin cycle reactions are dependent upon a supply of carbon dioxide, NADPH, and ATP which cofactor is involved in the Calvin cycle reactions? NADP+ segments of DNA that are not part of the gene are called introns which of the following is not true of ribosomes they bind only one type of amino acid which part of an operon is incorrectly matched with its function? regulator--binds to the repressor protein cells of the ground tissue system are called parenchyma, collenchyma, and sclerenc...

Iowa Commercial Pesticide Applicator Category 1A Latest Update Graded A What is the greatest hazard when applying most herbicides? Injury to nontarget plants Name some herbicides which are very effective against germinating weeds but less effective on established weeds. Frontier, Lasso, and Dual What soil conditions reduce the activity of many herbicides and require increased rates for adequate weed control? Higher levels of soil organic matter or clay Two herbicides which are more active on ...

BASF Plant Science Certification Practice Test Questions & Answers, rated A+ Which part of the plant cell provides the structural support and protection? - -Cell wall Which cell structure contains the cytoskeleton, cytosol, and organelles? - -Cytoplasm Maintaining proper levels of vegetation is an example of which type of conservation? - -Outdoor water conservation Which of the following is/are a benefit of weeds - -Soil stabilization, habitat and feed for wildlife, addition of organ...

Louisiana Horticulture Test Study Guide (2024) || Complete Questions & Answers (100% Verified) Louisiana Horticulture Test Study Guide (2024) || Complete Questions & Answers (100% Verified) What is the difference between a cultivar and variety? - ANSWER - Cultivar- A plant or grouping of plants selected for desirable characteristics that can be maintained by propagation Variety- A naturally occurring subgroup of a species which has some distinguishing characters Who is Linnaeus? What s...

Virginia Commercial Applicator Category 3B Turf Pest Control Key Terms Exam Questions and Answers 100% Pass To measure the delivery rate and distribution of application equipment; to adjust application equipment so the desired amount of pesticide is applied evenly to a given area. - Answer- Calibrate An abnormal, unhealthy condition. Turf diseases may be caused by abiotic or biotic factors. However, they are typically due to infectious organisms such as bacteria, fungi, and viruses. - An...

What are xylem? : Tubes that carry water and mineral ions in solution; water travels upwards from roots to leaves. They are formed from dead cells. How is water transported in the xylem? : THE COHESION-TENSION THEORY: 1)Water evaporates from the leaves- transpiration. 2)This creats tension which pulls more water into the leaf. 3)Water molecules are cohesive so the whole column of water moves upwards. 4)Water enters the stem via the roots. What is transpiration? : When water evaporates...

What happens when a suitable substrate binds to an enzyme? - ANSWER-The active site amino acids bond with the substrate Cyanide binds to cytochrome oxidase at a site where the substrate oxygen would normally bind. This is an example of - ANSWER-competitive inhibition an example of a catabolic reaction is - ANSWER-lactate fermentation what is an anabolic process that is endergonic and endothermic? - ANSWER-CH₄ +2O₂ → CO₂ + 2H₂O ATP yields 7.3 kcal/mol of free energy and it i...

What are xylem? - Answer Tubes that carry water and mineral ions in solution; water travels upwards from roots to leaves. They are formed from dead cells. How is water transported in the xylem? - Answer THE COHESION-TENSION THEORY: 1)Water evaporates from the leaves- transpiration. 2)This creats tension which pulls more water into the leaf. 3)Water molecules are cohesive so the whole column of water moves upwards. 4)Water enters the stem via the roots. What is transpiration? - An...