SvS Biology 2000 - No Webbuttal
8.2.2 There is a flow of energy and matter in an ecosystem

1.    There are many minerals and elements that are the building blocks for all life. CIRCLE the one below that contains a component that is NOT strictly a part of this?

(A)    carbon and phosporous
(B)    nitrogen and water
(C)    oxygen and sulfur
(D)    hydrogen and salts

2.(a)  carbon cycle

(b) water cycle

3.(a) ________________________________________________

(b)   ________________________________________________

4.    Fill in the blanks in the following paragraph:

The green pigment in leaves is called ________________ , it enables plants to grow by making their own food. The process which uses this pigment is known as ____________ , and uses ___________, carbon dioxide and energy from sunlight to produce the simple sugar, ____________. ___________ gas is a waste product of the process, some of which is used for _____________ , and the rest is released into the atmosphere.

5.    Fill in the blanks in the following paragraph:

Cellular respiration is a series of chemical reactions that occur in all cells 24 hours per day. In cellular respiration,___________ is broken down in the presence of __________ gas and converted to ATP within the cell. The byproducts of the process are ____________ and ___________. ATP is then used as needed to release energy for cellular functions like growth, reproduction and movement. Cellular respiration takes place in the organelles called _________________ within all eukaryotic cells.

6(a)   _______________________________________

(b)    food web:

(c)   second trophic level: _____________________________________________________

________________________________________________________________________

(d)    second order consumers: _________________________________________________

_______________________________________________________________________

7. (a) (i) _______________________

(ii)   __________________________

(b)(i) first order Competitors:________________________________________________

(ii)    effect on hawks?______________________________________________________

(iii)    effect on mice?_______________________________________________________

(c)  (i) __________________________________________________________________

_______________________________________________________________________

(ii)   __________________________________________________________________

_______________________________________________________________________

_______________________________________________________________________

8(a).

(b)    Answer True or false to the following about mitochondria:
        (i)    they may contain DNA
        (ii)    they are responsible for carrying out photosynthesis
        (iii)    they are only present in animal cells
        (iv)    they may contain ribosomes
        (v)    the pectoral muscle cells of a hummingbird will contain more of these than will a human heart cell.

Now whaddya want?

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Email me at: vanstriens@knox.nsw.edu.au to post questions

S. van Strien