SF Plants [Sept 18, 2024] #1

The first vascular plants appear in the fossil record in the late Silurian, about 420 million years ago.

• True

• False

Aglaophyton was a small plant, probably no more than 180 mm (about 7 inches) high.

• True

• False

Which is incorrect statement about structural adaptation of plants from aquatic to land condition?

• Rod-like plant body.

• Endodermis covered by a waxy cuticle.

• Leaves which increased the surface.

• Sporangia and gametangia enclosed in sterile jackets of cells.

"A unicellular alga and a large vascular plant are organisms that differ primarily in size and in the degree to which they have been subdivided by cells." What is theory refers to this statement?

• Organismal theory of multicellularity

• Cell theory of multicellularity

What is mark "B"?

• Terminal bud

• Current year's growth

• Axillary bud

In the shoot, there is a small protuberances from which leaves will develop. Which mark refers this part?

• A

• B

• C

• D

Which region only available on primary tissue of stem and not available on primary tissue of root?

• Epidermis

• Cortex

• Primary xylem

• Pith

Which is not include to the three simple tissues of plant?

• Parenchyma

• Collenchyma

• Pericycle

• Sclerenchyma

What is correct description about Collenchyma?

• Ground tissue

• Greatest abundance

• Only a small part of the pith or cortex

• Major supporting tissue in primary tissue regions

"Primary xylem is bounded both to the inside and outside by strands of primary phloem". What is this vascular bundle type?

• Collateral bundle

• Amphivasal bundles

• Bicollateral bundle

• Amphicribral bundles