Question

Phloem and xylem always lie adjacent to each other in plants. Together, they form which of the following plant structures?

Use letters in alphabetical order to select options

1. A

   vascular bundle

2. B

   epidermis

3. C

   meristems

4. D

   leaves

Which phyllotaxes allow for leaves on a stem to lie flat without bending or breaking?

Use letters in alphabetical order to select options

1. A

   spiral and whorled

2. B

   alternate and whorled

3. C

   alternate and opposite

4. D

   spiral and opposite

Plant tissue that functions in carrying organic compounds from the site of photosynthesis to other parts of the plant fall under which category?

Use letters in alphabetical order to select options

1. A

   dermal

2. B

   meristem

3. C

   phloem

4. D

   xylem

Which of the following describes a plant shoot growing upward?

Use letters in alphabetical order to select options

1. A

   negative thigmotropism

2. B

   positive gravitropism

3. C

   negative gravitropism

4. D

   positive feedback

Which type of meristem is only found in monocots?

Use letters in alphabetical order to select options

1. A

   intercalary

2. B

   permanent

3. C

   lateral

4. D

   apical

Which part of the leaf stores toxic or unpalatable compounds in order to deter grazing herbivores?

Use letters in alphabetical order to select options

1. A

   trichomes

2. B

   mesophyll

3. C

   cuticle

4. D

   stomata

For water to be transported to the top of a tall tree, several forces must be at work. From the choices below, which combination of forces explains this sort movement?

Use letters in alphabetical order to select options

1. A

   cohesion and transpiration

2. B

   turgor pressure and evaporation

3. C

   water heat capacity and pH

4. D

   gravity and conductivity

Which is the correct order of tissues, from the center to the surface of a root?

Use letters in alphabetical order to select options

1. A

   pith, cortex, vascular tissue, epidermis

2. B

   cortex, pith, vascular tissue, epidermis

3. C

   pith, vascular tissue, cortex, epidermis

4. D

   vascular tissue, cortex, epidermis, pith

What are the small green appendages that might be found at the base of a leaf’s petiole called?

Use letters in alphabetical order to select options

1. A

   stipules

2. B

   cuticles

3. C

   leaflets

4. D

   lamina

Apical meristems function in which type of growth?

Use letters in alphabetical order to select options

1. A

   leaf blade extension

2. B

   seed fattening

3. C

   length

4. D

   lateral

What do we call points of sugar delivery, such as roots, young shoots, developing seeds, and fruits?

Use letters in alphabetical order to select options

1. A

   storage

2. B

   destinations

3. C

   sinks

4. D

   sources

What is the name for the modified stems that run along the ground and occasionally produce new strawberry plants at irregular intervals?

Use letters in alphabetical order to select options

1. A

   corms

2. B

   runners

3. C

   rhizomes

4. D

   tubers

Answer 1

First Question:

The answer will be vascular bundle (Option A).

Explanation: Vascular bundle is a transport vessel of vascular plants consisting of vascular tissues xylem & phloem (In some cases cambium is present). Thus correct answer is option A.

Third Question:

The answer will be phloem (Option C).

Explanation: Dermal tissue protects the softer tissues of plant. So, we can ignore option A. Meristem helps in plant growth. So, we can ignore option B. Xylem carries water nutrients from root to other parts of the plant. So, we can ignore option D. Phloem carries organic compounds from the site of photosynthesis to other parts of the plant. Thus correct answer is option C.

Fourth Question:

The answer will be negative gravitropism (Option C).

Explanation: Negative thigmotropism occurs when in response of touch stimulus plants grow away from it. Example is growth of root under soil. So, we can ignore option A. Positive gravitropism occurs when growth happens towards gravity (downwards). Example is growth of root as it grow towards gravity. So, we can ignore option B. As shoot is growing upward, growth happens against gravity. So, negative gravitropism occurs. Thus correct answer is option C.