Question 1

Which of the following best describes the alternation of generations in land plants?

Accepted Answer

A life cycle that alternates between a multicellular haploid gametophyte and a multicellular diploid sporophyte.

Question 2

What is the function of the apical meristem in plants?

Accepted Answer

It is a region of undifferentiated cells responsible for primary growth at the tips of roots and shoots.

Question 3

Which plant cell type is characterized by thin, flexible primary cell walls and the ability to differentiate into other cell types?

Accepted Answer

Parenchyma cells

Question 4

What is the main function of collenchyma cells in plants?

Accepted Answer

Providing flexible support for growing parts of the plant

Question 5

Which macromolecule is abundant in the secondary cell walls of sclerenchyma cells and stains pink/red with certain dyes?

Accepted Answer

Lignin

Question 6

In the plant life cycle, what is the function of the sporangium?

Accepted Answer

It is the diploid organ where meiosis occurs to produce haploid spores.

Question 7

Which of the following best describes the function of stomata in plant leaves?

Accepted Answer

They allow for gas exchange between the plant and the atmosphere.

Question 8

Which tissue system is responsible for transporting water and minerals from the roots to the rest of the plant?

Accepted Answer

Vascular tissue

Question 9

What is the primary difference between monocot and eudicot root systems?

Accepted Answer

Monocots have fibrous roots, while eudicots have a taproot system.

Question 10

Which of the following is NOT a function of roots?

Accepted Answer

Carrying out photosynthesis

Question 11

Which of the following correctly matches a primary meristem with the tissue it produces?

Accepted Answer

Procambium → Vascular tissue

Question 12

A plant with leaves that have parallel veins and a fibrous root system is most likely a:

Accepted Answer

Monocot

Question 13

Which of the following is a correct sequence of zones in a growing root, starting from the tip?

Accepted Answer

Root cap → Zone of cell division → Zone of elongation → Zone of differentiation

Question 14

Which of the following is a function of the companion cells in phloem tissue?

Accepted Answer

Supporting sieve tube elements in the transport of organic materials

Question 15

Which of the following adaptations would you expect to find in a plant growing in a tidal, oxygen-poor environment?

Accepted Answer

Pneumatophores

Question 16

Which of the following best describes a palmate compound leaf?

Accepted Answer

Leaflets attached at a single point to the petiole

Question 17

Which of the following is a real-world example of a plant organ modification for defense?

Accepted Answer

Thorns on a stem

Question 18

During which process in the plant life cycle does the chromosome number change from diploid to haploid?

Accepted Answer

Meiosis in the sporangium

Question 19

Which of the following statements about guard cells is correct?

Accepted Answer

They regulate the opening and closing of stomata to control gas exchange and water loss.

Question 20

A botanist finds a plant with a large central root and leaves with a branched network of veins. Which of the following best describes this plant?

Accepted Answer

It is a eudicot with a taproot system.

Plant Anatomy: Cells, Tissues, Organs, and Adaptations

Study Guide - Practice Questions