DP Biology Questionbank

Description

Overview of the essential ideas for this topic.

9.1: Structure and function are correlated in the xylem of plants.

9.2: Structure and function are correlated in the phloem of plants.

9.3: Plants adapt their growth to environmental conditions.

9.4: Reproduction in flowering plants is influenced by the biotic and abiotic environment.

Directly related questions

• 13M.2.HL.TZ2.7b: Describe how water is carried through a flowering plant.
• 11M.2.HL.TZ2.6c: Define the term transpiration and explain the factors that can affect transpiration in a typical...
• 09M.2.HL.TZ1.4b: Describe how water is carried by the transpiration stream.
• 12N.2.HL.TZ0.6b: Explain the processes by which minerals are absorbed from the soil into the roots.
• 10N.2.HL.TZ0.1e(ii): Compare the results between the plants treated with short-day light and the plants treated with...
• 17M.3.HL.TZ2.3b: Predict, with a reason, what will happen to the pressure in this tube as transpiration occurs.
• 11M.1.HL.TZ1.32: The diagram below shows a cross section of a stem. What is the structure labelled Y and one of...
• 11N.2.HL.TZ0.8 c: Outline how the glucose produced as a result of photosynthesis is transported and stored in plants.
• 10N.2.HL.TZ0.1e(i): State the overall effect of overexpression of the OsGI gene in plants treated with short-day light.
• 10N.2.HL.TZ0.1g: Evaluate, using all the data, how modified varieties of rice could be used to overcome food...
• 13N.1.HL.TZ0.32: The following is a diagram of a flower.  What structures are indicated by the letters X, Y and...
• 16N.1.HL.TZ0.32: Excessive irrigation can cause increased salinity in the soil. What effect does this have on...
• 16M.3.HL.TZ0.2c: Explain how aphid stylets can be used to study the movement of solutes in plant tissues.
• 16M.3.HL.TZ0.3a: Distinguish between the rooting success of the juvenile shoots and the mature shoots.
• 16N.3.HL.TZ0.3a: Describe briefly how scientists obtained leaf phloem sap from the potato plants.
• 17M.1.HL.TZ1.33: Which flower structures are indicated by the letters Y and Z?  
• 17M.2.HL.TZ1.4c.i: Vascular plants can be found in a wide variety of ecosystems. Outline active transport in phloem...
• 17M.2.HL.TZ2.1c: Analyse the effect of NPA on the formation of roots.
• 17M.3.HL.TZ2.3a: State the specific type of plant tissue that the plastic tube is meant to model. 
• 10M.1.HL.TZ2.32: How do mineral ions in the soil move into the root? A. Osmosis B. Mass flow of water C....
• 10M.1.HL.TZ1.32: The diagram below shows part of the vascular system of a dicotyledonous plant. Which process is...
• 10N.2.HL.TZ0.2a: The photograph below shows the flowers of Campanula persicifolia. Label structures I, II and III.
• 16N.1.HL.TZ0.33: Chrysanthemums are an important commercial flower. As a short-day plant, how can growers induce...
• 16M.3.HL.TZ0.2a: Identify the tissue labelled II.
• 13M.2.HL.TZ2.6a: Outline how and where energy is stored in plants. 
• 13M.2.HL.TZ1.5b: Outline the metabolic processes that occur in starchy seeds during germination.
• 09M.2.HL.TZ1.4c: Explain how flowering is controlled in long-day and short-day plants.
• 13N.1.HL.TZ0.34: Which abiotic factors affect transpiration in plants?A. temperature, humidity and windB. pH,...
• 17M.1.SL.TZ1.1: Which structure found in eukaryotes has a single membrane? A. Nucleus B. Lysosome C....
• 17M.2.HL.TZ1.4c.ii: Vascular plants can be found in a wide variety of ecosystems. Explain how a plant replaces the...
• 15M.1.HL.TZ1.30: How do auxins cause plant shoots to grow towards light?A. Increase cell division on the side of...
• 15M.2.HL.TZ2.8b: Outline the conditions needed for the germination of a typical seed.
• 13M.1.HL.TZ2.33: Which process happens first during germination of a starchy seed? A. Formation of gibberellinB....
• 12M.2.HL.TZ1.7a: Describe how plants carry out gas exchange in the leaves.
• 12M.1.HL.TZ1.32: Under which conditions would the rate of transpiration be greatest? A. Humid and cool with wind...
• 10M.2.HL.TZ1.5c: Photosynthesis and transpiration occur in leaves. Explain how temperature affects these processes.
• 15N.1.HL.TZ0.31: When a plant stem bends towards sunlight, what change does auxin promote in the cells on the side...
• 15N.2.HL.TZ0.7b: Explain how abiotic factors affect the rate of transpiration in terrestrial plants.
• 16N.2.HL.TZ0.7b: The flowers of angiospermophyta are used for sexual reproduction. Outline three processes...
• 16M.2.HL.TZ0.7c: In hot, dry conditions plants lose water rapidly due to transpiration. Explain how the structures...
• 16M.3.HL.TZ0.3d: Auxin is a hormone that can be applied to improve the percentage success of rooting in those...
• 17M.1.HL.TZ2.30: Which process is matched with a valid example?
• 17M.2.HL.TZ2.1b: Identify the relationship between the concentration of auxin and the age of the different leaves.
• 17N.2.HL.TZ0.08b: Plants have widespread influences, from food chains to climate change. Explain the process of...
• 17N.1.HL.TZ0.34: Cobalt chloride paper is blue when dry but turns pink with water. Blue cobalt chloride paper was...
• 15M.2.HL.TZ2.8a: Explain how minerals move into plants.
• 12M.2.HL.TZ2.7a: Outline pollination, fertilization and seed dispersal.
• 11N.1.HL.TZ0.39: What is a role of xylem? A. It absorbs minerals from the soil by active transport. B. It...
• 13N.1.HL.TZ0.33: What steps occur in germination after water uptake?A. Gibberellin is produced, followed by...
• 16M.1.HL.TZ0.29: How do most angiospermophyta improve sexual reproductive success? A....
• 16M.1.HL.TZ0.27: Which is the most efficient way for some desert plants to conserve water? A. By having no...
• 16M.3.HL.TZ0.3b: Suggest one reason for the difference in the rooting success in the juvenile shoots and the...
• 17M.1.HL.TZ1.32: Which process and cause are responsible for water uptake by the roots?  
• 17M.2.HL.TZ2.1a: Calculate the difference in the concentration of auxin found in L1 and L6. . . . . . . . . . . ....
• 17M.2.HL.TZ2.1d.ii: Deduce the effect of NPA on auxin transport between L6 and the stem base.
• 17M.3.HL.TZ2.3c: Outline how this control set-up could be modified to test the effect of either humidity or...
• 17N.2.HL.TZ0.08a: Plants have widespread influences, from food chains to climate change. Draw a labelled diagram...
• 15M.1.HL.TZ1.31: What is transported in xylem tissue?A. Sucrose from leaves to fruitsB. Starch from leaves to...
• 12M.2.HL.TZ2.4c: Angiospermophyta have vascular tissue (xylem and phloem) that bryophyta lack. Suggest advantages...
• 12M.1.HL.TZ1.31: A man attaches a bird box to the trunk of a dicotyledonous tree. A few years later he returns to...
• 10M.2.HL.TZ2.5c: Auxin is a protein. Explain its role in phototropism.
• 10N.2.HL.TZ0.2b(ii): Comment on the hypothesis that the plant shown in the photograph could be pollinated by an animal.
• 16M.1.HL.TZ0.28: What allows most plants to continue producing more roots, leaves or stems throughout their...
• 16N.2.HL.TZ0.7a: Describe the transport of organic compounds in vascular plants.
• 16N.1.HL.TZ0.34: What is/are the effect(s) of auxin in plants? I.   Increasing the rate of cell elongation in...
• 17M.2.HL.TZ2.1e: Based on all the data presented and your knowledge of auxin, discuss the pattern of auxin...
• 17M.2.HL.TZ2.1f.ii: Compare the pattern of GH3 transcription with the pattern of auxin concentration in the stem base...
• 17M.3.HL.TZ2.1a: In order to form galls, the insects choose a location where cell division occurs at a high rate....
• 12M.2.HL.TZ2.8c: Explain how water is moved from roots to leaves in terrestrial plants.
• 10N.2.HL.TZ0.1e(iii): State, giving one reason taken from the data opposite, if unmodified rice is a short-day plant or...
• 16M.3.HL.TZ0.3c: Outline one variable that would need to be controlled in this experiment.
• 16M.3.HL.TZ0.2b: Outline one piece of evidence that the tissue labelled I is phloem tissue.
• 17M.2.HL.TZ2.1d.i: Compare and contrast the changes in auxin concentration in the stem base over time for the...
• 17M.2.HL.TZ2.1f.iii: The scientists concluded that auxin activates the transcription of the GH3 gene. Using the...
• 17N.1.HL.TZ0.32: Agar is a growth medium without nutrients; starch agar is agar with starch added to it. Seed...
• 17N.1.HL.TZ0.33: Which letter identifies phloem? [Source: E R DEGGINGER/Getty Images]