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Bioenergetics

Total questions: 100

Worksheet time: 1hrs 12mins

Name
Class
Date
1.
The important gases, carbon dioxide and oxygen, enter and leave the leaf through the
a)
upper epidermis
b)
phloem
c)
stomata
d)
guard cells
2.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + Sugar
b)
CO2 + sugar + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + Sugar
d)
CO2 + O2 + H2O --> Light+ Sugar
3.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Electron Transport
4.
Which of the following is an example of an AUTOTROPH?
a)
Appletree
b)
Dog
c)
Mushroom
d)
Human
5.
Which of the following is an example of a HETEROTROPH?
a)
Grass
b)
Algae
c)
Lemon Tree
d)
Bear
6.
Most plants appear green because chlorophyll
a)
absorbs green light.
b)
absorbs violet light.
c)
reflects green light.
d)
does not absorb violet light.
7.
What gas is being released during photosynthesis
a)
sulfur
b)
carbon dioxide
c)
oxygen
d)
hydrogen
8.
What are the products of photosynthesis?
a)
Glucose and Chlorophyll
b)
Glucose and Oxygen
c)
Water and Light energy
d)
Carbon Dioxide and Light energy
9.
How does photosynthesis benefit heterotrophs?
a)
It adds carbon dioxide to the air.
b)
It creates a source of energy they can eat.
c)
It creates clean water.
d)
It eliminates harmful sugars.
10.
carries food from leaves to other parts of the plant
a)
xylem
b)
phloem
c)
ovary
d)
pistil
11.
carries water and minerals from roots to other parts of the plant
a)
xylem 
b)
phloem
c)
stoma
d)
guard cell
12.
The openings on the bottom of leaves, which allow in CO2 (carbon dioxide) and releases O2 (oxygen) is the 
a)
stomata
b)
xylem
c)
Phloem
d)
Mesophyll
13.
_____________ carries water up throughout plants.
a)
stomata
b)
xylem
c)
phloem
d)
chloroplast
14.
The plant tissue that carries sugar (food) DOWNWARD from the leaves to the rest of the pant is the ______.
a)
Phloem
b)
Stomata
c)
Chlorophyll
d)
Xylem
15.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
16.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
17.
Which statement about photosynthesis is correct?
a)
Plants get the energy they need for photosynthesis from water.
b)
Plants get the energy they need for photosynthesis from soil.
c)
Plants get the energy they need for photosynthesis from sunlight.
d)
Plants do not require energy to perform photosynthesis.
18.
The main source of energy for all life comes from ____.
a)
the Earth
b)
the moon
c)
the sun
d)
the food we eat/make
19.
Green plants reflect ________ light.
a)
Red
b)
Green
c)
All
d)
Red and Violet
20.
What characteristic sets heterotrophs apart from autotrophs?
a)
Heterotrophs can be classified only as mammals.
b)
Heterotrophs use energy from the sun to make their own food.
c)
Heterotrophs obtain food from consuming other living or once-living things.
d)
Heterotrophs obtain food through the process of photosynthesis.
21.
What is the end product of photosynthesis ?
a)
carbon dioxide
b)
water
c)
glucose
d)
methane
22.
An autotroph is an organism that can ?
a)
make its own food.
b)
grow its own food
c)
kill and eat other organisms.
d)
play ball with you. 
23.
The raw ingredients (reactants) of photosynthesis are sunlight along with ?
a)
CO2 and H20
b)
CO2 AND C6H12O6
c)
oxygen and water
d)
oxygen and CO2
24.
Why is photosynthesis important?
a)
creates oxygen for animals to breath
b)
creates energy for heterotrophs to use
c)
creates food for plants to use
d)
all of these are correct
25.

__________ is the process that plants use to breathe and make food.

a)

Photographs

b)

Oxygen

c)

Hydrogen

d)

Photosynthesis

26.

The plants gets its nutrients from sugar, called __________.

a)

Galactose

b)

Fructose

c)

Sugar

d)

Glucose

27.

What part of the plant soaks up water for photosynthesis?

a)

roots

b)

leaf

c)

petals

d)

stem

28.

What time of day do plants photosynthesize?

a)

Nighttime only

b)

daytime and night time

c)

daytime only

d)

only in the summer

29.

Which of the following is NOT needed for plants to survive?

a)

Sunlight

b)

Pesticides

c)

Water

d)

Carbon Dioxide

30.

These organs help our body to breath except

a)

Nasal cavity

b)

Lungs

c)

Trachea

d)

Mouth

31.

Which of the following processes transport oxygen from the alveoli into the capillaries?

a)

Respiration

b)

Inhalation

c)

Exhalation

d)

Diffusion

32.

During exhalation, what will happen to these respiratory organs?

a)

Diaphragm moves downward and flatten

b)

Rib cage moves upwards and outwards

c)

intercostal muscles relax

d)

Intercostal muscles contract

33.

When inhalation

a)

Thoracic cavity become smaller

b)

The air pressure in the thoracic cavity increases

c)

The air pressure n the thoracic cavity decreases

d)

Air is pushed out

34.

The composition of carbon dioxide in exhaled air is

a)

79%

b)

21%

c)

4%

d)

0.04%

35.

State the products of respiration in the body cells?

a)

Oxygen, carbon dioxide and water

b)

glucose, oxygen and water

c)

carbon dioxide, water and oxygen

d)

carbon dioxide, water and energy

36.

Following are the characteristics of alveoli that make it efficient for gaseous exchange except:

a)

Thin wall of blood capillaries

b)

small surface area of alveoli

c)

Moist wall of alveoli

d)

Dense netword of blood capillaries

37.

What is the name of the compound found in the red blood cells

a)

Oxyhaemoglobin

b)

Haemoglobin

c)

Hormones

d)

Enzymes

38.
Which is not a step in aerobic respiration?
a)
glycolysis
b)
Krebs' Cycle
c)
Calvin Cycle
d)
electron transport
39.
Which process occurs in the mitochondria
a)
glycolysis and Krebs' Cycle
b)
Krebs' Cycle and Electron Transport
c)
Calvin Cycle and Electron Transport
d)
Glycolysis only
40.
Which process produces the most ATP?
a)
glycolysis
b)
Krebs' cycle
c)
Electron transport
d)
fermentation
41.
What is the purpose of the Krebs' cycle?
a)
To  make the electron carriers
b)
To make ATP
c)
To break down glucose
d)
To break down ADP
42.
What does it mean for something to be anaerobic?
a)
It requires CO2
b)
It does not require CO2
c)
It requires oxygen
d)
It does not require oxygen
43.
Where in the cell does aerobic respiration take place?
a)
Nucleus
b)
Cytoplasm
c)
Mitochondria
d)
Cell membrane
44.
What is the waste energy from respiration given off as?
a)
Heat
b)
Light
c)
Sound
d)
Kinetic
45.
The element _______ is found in all of the organic compounds.
a)
Iron
b)
Nitrogen
c)
Carbon
d)
Oxygen
46.
The "regenerator" of the Krebs Cycle is:
a)
Oxaloacetate
b)
Acetyl-CoA
c)
Citrate
d)
α-Ketoglutarate
47.
Before entering Krebs Cycle, pyruvate is:
a)
Oxidized
b)
Reduced
c)
Isomerized to Acetyl-CoA
d)
Phosphorylated
48.
How many FADH2 molecules are produced by 1 molecule of glucose?
a)
1
b)
2
c)
3
d)
4
49.
How many FADH2 molecules are produced by 1 turn of the Krebs Cycle?
a)
1
b)
2
c)
3
d)
4
50.
How many NADH molecules are produced by a molecule of glucose through the Krebs' Cycle?
a)
2
b)
3
c)
4
d)
6
51.
Which of the following is not a requirement for the Krebs Cycle?
a)
NAD+
b)
FAD+
c)
Water
d)
Pyruvate
52.
How many CO2 molecules are produced by the Krebs Cycle for a molecule of glucose?
a)
2
b)
4
c)
6
d)
3
53.
After Krebs Cycle, how many Carbon atoms from the original glucose molecule remain?
a)
0
b)
1
c)
3
d)
2
54.
Krebs Cycle takes place in the:
a)
Cytoplasm
b)
Matrix
c)
Ribsome
d)
InterMembrane Space
55.
Folds in the mitochondrion are called:
a)
Cristae
b)
Matrix
c)
Golgi Bodies
d)
Carbuncles
56.
Prior to entering the Krebs Cycle, each pyruvate molecule loses electrons, hydrogen ions, and a carbon, forming an energy-rich molecule of
a)
Acetyl-CoA
b)
Citrate
c)
Oxaloacetate
d)
Malate
57.
After the Krebs Cycle only a small portion of the energy of glucose has been converted to ATP. At this point the majority of usable energy is contained in
a)
NADH and FADH2
b)
Carbon Dioxide 
c)
Acetyl-CoA
d)
Citrate
58.

Which is a product of glycolysis?

a)

2 molecules of pyruvic acid

b)

1 molecule of glucose

c)

NAD+

d)

oxygen

59.

The initial reaction of the Krebs cycle produces:

a)

Glucose and pyruvate

b)

H2O and CO2

c)

CO2, acetyl-CoA, and NADH

d)

Coenzyme A and NADH

60.

Acetyl-CoA is joined up to a ________________________ to form ________________________.


a)

6 carbon compound; acetate

b)

3 carbon compound; acetyl-CoA

c)

4 carbon compound; acetyl-CoA

d)

4 carbon compound; citric acid

e)

6 carbon compound; citric acid

61.

For the two pyruvic acids that enter from glycolysis, the Krebs cycles will yield:

a)

1 ATP, 2 NADH, and 1 FADH2

b)

1 ATP, 2 NADH, and 2 FADH2

c)

1 ATP, 3 NADH, and 1 FADH2

d)

2 ATP, 8 NADH, and 2 FADH2

e)

2 ATP, 4 NADH, and 2 FADH2

62.

The waste product produced during the Krebs cycle is...

a)

Oxygen

b)

Water

c)

Carbon Dioxide

d)

ATP

63.

In the electron transport chain, Oxygen acts as...

a)

a carrier of electrons, passing electrons down the chain

b)

a reducing agent

c)

the final electron acceptor

d)

a coenzyme

64.

When protons are pumped outside the matrix, across the inner membrane...

a)

water is made

b)

a concentration gradient of H+ ions (protons) is created

c)

NADH gets reduced

d)

CO2 is produced

65.

The movement of protons (H+ ions) through ATP synthase occurs from the...

a)

matrix to the intermembrane space

b)

matrix to cytoplasm

c)

intermembrane space to the matrix

d)

intermembrane space to the cytoplasm

e)

cytoplasm to the intermembrane space

66.

The process that enables ATP synthase to function is...

a)

endocytosis

b)

active transport

c)

pinocytosis

d)

osmosis

e)

diffusion

67.

In what part of the mitchondria does the electron transport chain occur?

a)

Inner mitochondrial membrane (folds of the mitochondria)

b)

Outer mitochondrial membrane

c)

Cytoplasm

d)

Ribosomes

68.

What does FADH2 and NADH bring to the electron transport chain?

a)

Oxygen

b)

Water

c)

Electron

d)

ATP

69.

ATP synthesis by ATP synthase is driven by

a)

H+ movement

b)

electron movement

c)

NADH movement

d)

FADH2 movement

70.
The conversion of glucose to two molecules of pyruvate is the result of what process?
a)
the krebs cycle
b)
glycolysis
c)
the electron transport chain
d)
oxidative phosphorylation
71.
What does ATP synthase do?
a)
Create ATP in chemiosmosis.
b)
Break down ATP in chemiosmosis.
c)
Break down NADPH. 
d)
Create NADPH.
72.
What enzyme in the ETC is responsible for generating the ATP molecules?
a)
ATPase
b)
ATP synthase
c)
Hexokinase
d)
none of the above
73.

Which of the following processes creates the most ATP during aerobic cellular respiration?

a)

glycolysis

b)

fermentation

c)

electron transport chain

d)

Citric acid cycle

74.

ADH is created in the:

a)

Hypothalamus

b)

Posterior Pituitary Gland

c)

Brain

d)

Kidney

75.

ADH is released from the pituitary gland into the:

a)

Circulatory system

b)

Endocrine system

c)

Nervous system

d)

All of the above

76.

When ADH is secreted, urine will:

a)

Be more dilute

b)

Be more concentrated

c)

Have a larger volume

d)

All of the above

77.

When you drink a larger volume of water than is required by your body tissues:

a)

ADH secretion will be increased

b)

ADH secretion will be inhibited

c)

ADH secretion will not be affected

d)

None of the above

78.

Cells that detect high blood concentration are called:

a)

Chemoreceptors

b)

Osmoreceptors

c)

Thermoreceptors

d)

Nociceptors

79.

Anti-diuretic hormone (ADH) affects the permeability of which section of the nephron tubules

a)

Proximal (first) convoluted/coiled tubual

b)

Loop of Henle

c)

Distal (second) convoluted/coiled tubual

d)

Collecting duct

80.

If you are dehydrated (low water potential in the blood), the body must conserve water. To do so, the brain triggers the pituitary gland to ...

a)

release MORE ADH, making the collecting duct MORE permeable

b)

release LESS ADH, making the collecting duct LESS permeable

c)

release MORE ADH, making the collecting duct LESS permeable

d)

release LESS ADH, making the collecting duct MORE permeable

81.

sodium and postassium ions are pumped out of the ascending limb of the loop of the Henle to

a)

create a high water potential in the medulla

b)

create a low water potential in the medulla

c)

excrete excess ions into the urine

d)

allow water to be reabsorbed into the proximal convoluted tubule by osmosis

82.

sodium and postassium ions are pumped out of the ascending limb of the loop of the Henle to

a)

create a high water potential in the medulla

b)

create a low water potential in the medulla

c)

excrete excess ions into the urine

d)

allow water to be reabsorbed into the proximal convoluted tubule by osmosis

83.

ADH causes specific protein channels to move into the membranes of certain cells in the nephron so that more water can be absorbed by osmosis. What are these called?

a)

aquaporins

b)

active transport

c)

tight junctions

d)

desmosomes

84.

What happens in your body temperature drops below 35 oC?

a)

Hyperthermia

b)

Hypothermia

c)

Hypertonic

d)

Hypotonic

85.

What happens to the rate of an enzyme reaction when heated up?

a)

Increases

b)

Decreases

c)

Increase and then decreases

d)

decreases and then increases

86.

Which progress produces heat in every living cell?

a)

digestion

b)

respiration

c)

protein synthesis

d)

photosynthesis

87.

How is heat transferred around the body?

a)

Blood

b)

Water

c)

Sweat

d)

Skin

88.

Why is the bodies core temperature 37oC?

a)

Optimum temperature for enzymes

b)

No specific reason

c)

To limit the enzymes rate of reaction

d)

Its not 37oC

89.

Which organ of the body produces the most heat?

a)

The brain

b)

The small intestine

c)

The heart

d)

The liver

90.

The iris adjusting in bright and dim light is called the what?

a)

Iris Adjustment

b)

Iris Reflex

c)

Iris Contraction

d)

Iris Movement

91.

What does MRI stand for?

a)

Magical Rainbow Inducer

b)

Magnification Refractory Index

c)

Magnetic Resonance Imaging

d)

Multiple Record Imaging

92.

What is the correct neural pathway?

a)

Sensory Neurones - Relay Neurones - Motor Neurones

b)

Motor Neurones - Relay Neurones - Motor Neurones

c)

Sensory Neurones - Relay Neurones - Multiple Neurones

d)

Sensory Neurones - Motor Neurones

93.

What is homeostasis?

a)

The maintenance of a constant internal environment

b)

The maintenance of a constant external environment

c)

The maintenance of an inconstant internal environment

d)

Negative feedback

94.
An organism that has a variable body temperature should be classed as:
a)
Poikilotherm
b)
Homeotherm
c)
Endotherm
d)
Ectotherm
95.
An organism that has a stable body temperature should be classed as:
a)
Poikilotherm
b)
Homeotherm
c)
Endotherm
d)
Ectotherm
96.
An organism that produces its own body heat should be classed as:
a)
Poikilotherm
b)
Homeotherm
c)
Endotherm
d)
Ectotherm
97.
An organism that relies on the environment for body heat should be classed as:
a)
Poikilotherm
b)
Homeotherm
c)
Endotherm
d)
Ectotherm
98.
The relationship between temperature and rate of reaction is described by:
a)
Van't Hoff's Rule
b)
Fick's Law
c)
Mifflin-St.Jeor Equation
d)
Kleiber's Law
99.
The heat for body temperature in endotherms comes from:
a)
Thermogenin
b)
ATP Synthase
c)
Environment
d)
Brown Fat
100.
The heat for body temperature in ectotherms comes from:
a)
Thermogenin
b)
ATP Synthase
c)
Environment
d)
Brown Fat

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