Which statement is not true about plants:
a) they are eukaryotes
b) they are heterotrophs
c) they have cell walls
d) they are multicellular
b) they are heterotrophs
Tiny reproductive structures that become sperm cells
pollen
As a seed develops after fertilization, the ovary changes into a _______.
fruit
The period when a organism's growth or activity stops
dormancy
the process by which a seed sprouts is called _______.
germination
What is the system of tubelike structures that transport water, food, and other nutrients throughout the plant?
vascular tissue
xylem
DAILY DOUBLE! All angiosperms share what two important traits?
a) They have flowers
b) They have "naked" (uncovered) seeds
c) They have male and female cones
d) They produce seeds enclosed in fruit
a) they have flowers
d) they produce seeds enclosed in fruit
Flowering plants that live for more than two years are
a) annuals
b) perennials
c) biennials
d) gymnosperms
b) perennials
The part of the plant embryo that is the first to emerge from a seed, it stores food for the embryo:
a) ovule
b) sapwood
c) cotyledon
d) monocot
c) cotyledon
Which is an example of a nonvascular plant?
a) fern
b) horsetail
c) celery
d) moss
d) moss
Name the type of roots shown in the pictures below
a) fibrous root
b) tap root
The wind carries pollen from a male cone to a female cone
Plant roots show:
a) positive gravitropism
b) negative gravitropism
c) positive phototropism
d) negative thigmotropism
a) positive gravitropism
Describe what an annual ring is and what information it gives us
An annual ring represents a tree's annual growth and are made of xylem. A ring consists of one set of a lighter ring (spring growth) and a darker ring (later summer growth). Wide width rings indicate a rainy year, thin annual rings can indicate drought.
How do seedless vascular plants reproduce?
They release spores
List four ways that seeds can be dispersed
wind
water
animals
humans
bursting
What reproductive part of the flower produces pollen?
the anther
What is an important plant hormone that controls cell growth?
auxin
In woody stems, new xylem cells are produced by the:
a) bark
b) cambium
c) phloem
d) heartwood
b) cambium
What are the main functions of a plant's roots, stem, and leaves?
roots: anchor plant, absorb water and nutrients from soil
stem: support for plant, carry substances from roots to leaves
leaves: photosynthesis
The rootlike structures of a moss are
rhizoids
What are three ways we can tell a monocot from a dicot? Give three and identify which is a monocot and which is a dicot.
flower on the left is the monocot, the flower on the right is a dicot.
1. monocots have petals in multiples of 3, parallel leaf veins, and fibrous roots
2. dicots have petals in multiples of 4 or 5, branching leaf veins, taproot
Name the four main plant stimuli to which plants show growth responses.
water, light, gravity, touch
What is the name of the collection of female reproductive parts in a flower?
pistil