Plant Unit

Question 1

Tracheophyta

Answer 1

comprising plants with a vascular system including ferns and fern allies as well as seed plants

Question 2

Protonema

Answer 2

a thread-like chain of cells that forms the earliest stage (the haploid phase) of a bryophyte life cycle

Question 3

Chlorophyta

Answer 3

Chlorophyta is a division of green algae, informally called chlorophytes. The name is used in two very different senses, so care is needed to determine the use by a particular

Question 4

Antheridium

Answer 4

the male sex organ of algae, mosses, ferns, fungi, and other nonflowering plants.

Question 5

Archegonium

Answer 5

the female sex organ in mosses, liverworts, ferns, and most conifers.

Question 6

Chlamydomonas

Answer 6

a common single-celled green alga that lives in water and moist soil and typically has two flagella for swimming.

Question 7

Dioecious

Answer 7

having the male and female reproductive organs in separate individuals.

Question 8

Parenchyma

Answer 8

the cellular tissue, typically soft and succulent, found chiefly in the softer parts of leaves, pulp of fruits, bark and pith of stems, etc.

Question 9

Meristematic

Answer 9

meristem is the tissue in most plants containing undifferentiated cells (meristematic cells), found in zones of the plant where growth can take place. Meristematic cells give rise to various organs of the plant and keep the plant growing.

Question 10

Apical meristems

Answer 10

A meristem at the tip of a plant shoot or root that produces auxin and causes the shoot or root to increase in length. Growth that originates in the apical meristem is called primary growth.

Question 11

Anther

Answer 11

the part of a stamen that contains the pollen.

Question 12

Filament

Answer 12

The slender part of a stamen that supports the anther.

Question 13

Stamen

Answer 13

the male fertilizing organ of a flower, typically consisting of a pollen-containing anther and a filament.

Question 14

Style

Answer 14

the style is a structure found within the flower. It is a long, slender stalk that connects the stigma and the ovary. The stigma is at the top of the style and is a sticky platform where pollen is deposited.

Question 15

Ovary

Answer 15

an ovary is a part of the female reproductive organ of the flower or gynoecium. Specifically, it is the part of the pistil which holds the ovule(s) and is located above or below o

Question 16

Stigma

Answer 16

The part of the pistil where pollen germinates.

Question 17

Pistil

Answer 17

the female reproductive part of a flower. The pistil, centrally located, typically consists of a swollen base, the ovary, which contains the potential seeds, or ovules; a stalk, or style, arising from the ovary; and a pollen-receptive tip, the stigma, variously shaped and often sticky.

Question 18

Carpel

Answer 18

A carpel is composed of an ovary, a style, and a stigma, although some flowers have carpels without a distinct style. In origin, carpels are leaves (megasporophylls) that have evolved to enclose the ovules.

Question 19

Receptacle

Answer 19

the thickened part of a stem from which the flower organs grow. In some accessory fruits, for example the pome and strawberry, the receptacle gives rise to the edible part of the fruit.

Question 20

Sori

Answer 20

a cluster of sporangia on the underside of a fertile fern frond

Question 21

Rhizome

Answer 21

a modified subterranean stem of a plant that is usually found underground, often sending out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks and rootstocks

Question 22

Rhizoids

Answer 22

A slender, rootlike filament by which mosses, liverworts, and the gametophytes of ferns attach themselves to the material in which they grow.

Question 23

Capsule

Answer 23

In botany a capsule is a type of simple, dry fruit produced by many species of flowering plants. A capsule is a structure composed of two or more carpels. In Angiosperms (flowering plants), the term locule is used to refer to a chamber within the fruit.

Question 24

Zygote

Answer 24

a eukaryotic cell formed by a fertilization event between two gametes.

Question 25

Osmosis

Answer 25

is the movement of water molecules from an area of high water concentration to an area of low water concentration