Download Plant Unit

Name: ________________________________
Plant Unit
SHS
R.Bio
Autotrophs-
Heterotrophs-
There are two (2) types of autotrophs, those that use ______________,
and those that use __________________.
_______________- turns carbon dioxide and inorganic substances
like nitrogen and sulfur into the food they need.
__________________- turns light, carbon dioxide and water
(ingredients/raw materials) into glucose (food), oxygen and water (products).
What is photosynthesis?
Word Equation:
_________ + ______ ------------- _________ +________+ __________
Chemical Formula:
_________+_______------------ _________ + ________+ __________
1
Chloroplasts in plant cells
Chloroplast
Three (3) major factors, which affect the rate of photosynthesis:
1.
2.
Stop and Jot!
3.
2
Leaves
Photosynthesis occurs mostly in the _________________ of the plant.
The leaves provide a large _____________________________ for the
absorption of ____________.
Leaf Structure (Cross Section)
•
________________________ - Outer layer of the leaf which has a
waxy covering called a ______________________. Main functions
of the outer layer is:
a).
b).
c).
3
•
__________________________ - Openings in the cuticle and
epidermis.
•
The size of the opening is regulated by _______________
_____________.
•
Stomates allow the exchange of _______________,
______________________, and __________ between the external
environment and internal air spaces.
•
__________________ are tiny openings in the stem that also allow gas
exchange.
•
Most photosynthesis occurring in the leaves
takes place in the _____________________
layer.
4
•
____________________ layer contains ________ ____________
which are surrounded by moist surfaces for the exchange of gases
( ______________________ in and _______________ out). Some
photosynthesis takes place here as well. Do you see the chloroplasts in
the spongy cells?
•
________________ ____________ located in the __________ of
the leaves.
•
The _____________carries water and minerals (up) and
______________ carries food throughout (down and up). The
vascular tissue begins in the ___________ and continues through the
stem to the leaves.
Stop and Jot!
5
Roots
The ___________ have three (3) main jobs:
A).
Anchor-
B).
Food storage-
C).
Absorption-
Coming off the roots are tiny hairs called ___________
__________.
They _______________ surface area so that more
________________ and _________________ can be absorbed by
___________(osmosis) and ______________ _______________.
How is water transported once it is inside the
roots?
_______________ is the evaporation of water vapor
through the stomates. There is a pulling force on the
column of water in the ______________.
It’s called _____________________ __________.
6
Stop and Jot!
Use the textbook
page 612 to label
the flower
Flowering Plants
Reproduction in flowering
plants
1. The flower is a structure specialized
for ______________ reproduction.
Flowers which have both male and female
parts on the same flower are called
_________________ or
______________.
7
2. Those that only one part, i.e. only “male” or “female” parts are called
__________________ or ________________________
•
MALE Reproductive organs: _______________ which is composed of
the _____________ and _______________. The anther makes
____________ (male gamete by meiosis).
•
FEMALE Reproductive organs: _______________ which is composed
of the ____________, ____________ and _______________.
•
The ____________ makes ______________ (eggs) (female gamete
by meiosis).
•
_______________ is the process of pollen (sperm) going from the
_____________ to the _____________.
8
1. ________-_______________ is the transfer
of pollen from the anther to the stigma of the
SAME flower or plant.
2. ________ - ______________ is the transfer
of pollen from the anther on one flower to the
____________ of a DIFFERENT plant.
Cross-pollination is an adaptation which increases variety.
•
Cross-pollination is accomplished by:
1.____________ 2._____________ 3.__________.
Name three (3) traits (characteristics) about the flower
that helps cross-pollination:
1. _______________
2. _______________
3. _______________
What happens after the pollen (sperm) lands on the stigma?
1. The pollen grain _________________(
forms a ___________ _________ which extends into
the ______________.
9
) and
2. Sperm nuclei are formed and _______________ (
) the
ovules.
3. The union of the sperm and ovule
results in a ____________.
4. The zygote develops into an
______________ which develops into
a _______________.
5. The ovary becomes the
____________.
6. The plant embryo consists of three (3) parts:
epicotyl
hypocotyl
•
________________ - develops into the root
•
________________ - develops into the leaves
•
________________ - contains stored food (nutrients) for the
germinating plant
10
Check here to make sure you labeled the flower
correctly.
In flowering plants, seeds develop inside a fruit. This is a special adaptation
that helps in seed dispersal.
There three (3) conditions needed for the seed to grow:
1.______________________
2. _____________________
3. _______________________
•
Development of a seed into a mature plant requires:
1. cell division (mitosis)
2. differentiation (cells become specialized)
11
3. _______________
•
The plants grow in the tips of the ____________ and ___________.
•
The special tissue found in these regions are called
_________________________.
Plant Regulation
Plants have hormones just like you do. Hormones effect the plant’s
_______________ and _______________________ just like your
hormones.
______________ are plant hormones that influence division, elongation
and differentiation of plant cells. Unequal distribution of ______________
causes unequal growth called _________________, which enhances plant
survival.
Unequal distribution of auxin can be caused by ___________,
_______________ or ______________.
12
Tropisms
•
______________________ -
•
______________________ -
•
______________________ -
13