Name…………………………
Date ………………………….
Page 36-37 in text book
Worksheet 1 unit 1
Q1/ fill in the blanks?
1-
Mitochondria
are
relatively
large
organelles
found
in
all
2- Each mitochondrion has a ……………. membrane, the outer one of which
controls the entry and exit of ………………………
3- The inner membrane forms many folds called …………………….
4- The mitochondrion filled with a liquid called …………………….. where
some of the enzymes used in …………………….. are found.
5- Mitochondria are the sites of ……………………………. in the cell.
they are often described as the …………………………. of the cell.
6- Enzymes involved in different stages of cell respiration are located on the
……………….. and in the …………………
Q2/ label the following diagram?
Q3/ fill in the blanks?
1. The function of cell respiration is to provide cells with
__________________.
2. The most common food substance from which cells obtain energy is the
monosaccharide known as ________________, which has the molecular
formula _________________.
3. The difference between aerobic and anaerobic respiration is that aerobic
respiration requires the presence of __________________ while anaerobic
respiration does not. Also, MORE energy is produced from
____________________ respiration.
4. The cell’s usable form of energy is a chemical compound called adenosine
triphosphate, abbreviated ___________. This compound is considered a
HIGH-ENERGY compound because it enables our cells to efficiently carry
out their life processes (functions).
5. In aerobic cell respiration, ______ molecules of ATP are produced for every
1 molecule of glucose oxidized. In anaerobic cell respiration, only ______
molecules of ATP are produced (per 1 molecule of glucose).
6. Glycolysis is the conversion of 1 molecule of glucose into 2 molecules of
_______________ _____________ (aka pyruvate). Glycolysis occurs in the
__________________ of cells and produces a net total of ______ ATP.
Stages of aerobic respiration occurred in mitochondria
1- Chloroplasts are found inside the ……………………..tissues of plants
and some protoctists.
2- They are particularly abundant in the palisade mesophyll cells of ………
3- they belong to a group of organelles called ……………., many of which
contain pigments.
4- chloroplasts are similar in size to ………………. and like to
mitochondria ,they have a ……………………….. –the chloroplast
envelope.
5- Label the following diagram ?
6- Match the terms below with the correct description?
Chlorophyll
Chloroplast
Electromagnetic spectrum
Electron transport chain
Grana
Light-dependant reactions
Light-independent reactions
Photon
Photosynthesis
Photosystem
Stroma
Thylakoid
a. __________________ packet of solar energy
b. __________________energy-capturing portion of photosynthesis that
takes place in thylakoid membranes of chloroplasts and cannot proceed
without solar energy, it produces ATP and NADPH
c. __________________green pigment that absorbs solar energy and is
important in photosynthesis
d. __________________ large, central compartment in a chloroplast that is
fluid filled and contains enzymes used in photosynthesis
e. __________________ membrane-bounded organelle with chlorophyll –
containing membranous thylakoids; where photosynthesis takes place
f. __________________Photosynthetic unit where solar energy is absorbed
and high-energy electrons are generated; contains a pigment complex and
an electron acceptor
g. __________________Passage of electrons along a series of carrier
molecules form a higher to a lower energy level; the energy released is
used for the synthesis of ATP.
h. __________________Process usually occurring within chloroplasts
whereby chlorophyll traps solar energy and carbon dioxide is reduced to
a carbohydrate.
i. __________________ Series of photosynthetic reactions in which carbon
dioxide is fixed and reduced in the chloroplast.
j. __________________Synthesis portion of photosynthesis that takes
place in the stroma of chloroplasts and does not directly require solar
energy; it uses the products of the light dependant reactions to reduce
carbon dioxide to a carbohydrate