FINAL CMB Flashcards

1
Q

These are the organelles that convert energy to forms that
cells can use for work.

A

Mitochondria and chloroplasts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

are semiautonomous organelles

A

Mitochondria and chloroplasts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Catabolic pathways and redox reaction end and by product:

A

End product: ATP
By product: CO2 and H2O

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Meaning
 LEORA
 GEROA

A

Loss of electron; Reducing agent
Gain of electron; Oxidizing agent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Glycolysis literally means

A

sugar splitting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The process by which, six-carbon sugar glucose is broken down into two three-carbon sugars called pyruvate (an ionized form of pyruvic acid).

A

Glycolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Glycolysis occurs in

A

Cytosol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

ATP is formed by

A

substrate-level phosphorylatio

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The net energy production from glycolysis is

A

2 ATP + 2 NADH, and 2 pyruvate per glucose molecule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

is the end-product of glycolysis, is
derived from additional sources in the cellular
cytoplasm, and is ultimately destined for transport into mitochondria as a master fuel input undergirding citric acid cycle carbon flux

A

Pyruvate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

also known as the Krebs cycle or citric acid cycle, is an important cell’s metabolic hub.

A

tricarboxylic acid (TCA) cycle,

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

in 1937 was able to present a complete
picture of an important part of metabolism—the citric acid cycle

A

Hans Krebs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

citric acid occurs in the

A

mitochondrial matrix

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

A dense solution that surrounds
the mitochondria crests: in addition to water, the matrix contains all the enzymes necessary for the biochemical
reactions of the cycle, coenzymes, and phosphates

A

mitochondrial matrix

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The electron transport chain is in the … of the mitochondrion

A

cristae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Electrons are passed through a number of proteins including

A

cytochromes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

is the process by which energy stored in the form of a hydrogen ion (H+) gradient across a membrane is utilized to drive
cellular activities such as ATP production (from the Greek osmos, push).

A

Chemiosmosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The resulting H+ gradient is referred to as a?

A

proton-motive force,

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

1 glucose yields about? (depending on which e- carriers used)

A

26-28 net ATP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The three main department of this metabolic enterprise:

A

Glycolysis
Pyruvate oxidation
Citric Acid cycle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

A very ancient process

A

Glycolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Small molecules are assembled into large ones. Energy is required.

A

Anabolic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Large molecules are broken down into small ones. Energy is released.

A

Catabolic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

are thought to have become a part
of certain eukaryotic cells in much the same way as mitochondria were incorporated into all eukaryotic cells

A

Chloroplast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
first eukaryotic cell was
amoeba-like cell
26
New chloroplast are formed through?
binary fission or splitting
27
Structure of chloroplast is similar to cyanobacteria; both have
double membranes, circular DNA ribosomes thylakoids.
28
Cyan = cyanin
means aqua colored
29
All cyanobacteria are
photosynthetic bacteria
30
khloros means plates means
green formed
31
Essential for the growth and survival of plants and photosynthetic algae and Part of the plant and algal cells that carry photosynthesis
Chloroplast
32
This plant Obtains nutrient from other plants and Lost the genes coding for the development of the chloroplast
Rafflesia
33
Plant cells contain structures known as ___ which are absent in animal cells
plastids
34
are double-membraned cell organelles that play a primary role in the manufacturing and storing of food
Plastids
35
, are the color plastids, found in all flowers, and fruits and are mainly responsible for their distinctive colors.
Chromoplast
36
, are green-colored plastids, which comprise green-colored pigments within the plant cell and are called chlorophyll.
Chloroplasts
37
, are colorless plastids and are mainly used for the storage of starch, lipids and proteins within the plant cell.
Leucoplast
38
A round, oval, or disk-shaped body that is involved in the synthesis and storage of foodstuffs
Chloroplast
39
ts important roles are in signal transduction, protein import, lipid biosynthesis and remodeling, exchange of ions and numerous metabolites, plastid division, movement, and host defense
Outer membrane
40
The space between inner and outer membranes. The ____ is the region between the inner membrane and outer membranes of a mitochondrion or a chloroplast. Its main function is nucleotide phosphorylation
Intermembrane space
41
The ___ separates the stroma from the intermembrane space. It fills the role of the inner mitochondrial membrane in electron transport and the chemiosmotic generation of ATP the inner membrane is impermeable to ions and metabolites, which are therefore able to enter chloroplast inly via specific membrane transporters.
inner membrane
42
– it is the site for the process of light dependent reactions of the photosynthesis process. ___ are disc- shaped and collect protons from a light source
Thylakoids
43
– it increase the efficiency of photosynthesis by keeping grana at a distance so that they do not clutter together. They are also known as stroma thylakoids. They ensure maximum energy from sunlight is captured in photosynthesis.
Stroma lamella
44
– it is a colorless, alkaline, aqueous, protein rich the fluid present within the inner membrane of the chloroplast present surrounding the grana.
Stroma
45
– considered as a basic units of chloroplast. ___ are stacks of membranebounded, flattened discoid sacs called thylakoids containing the molecules of chlorophyll.
Granum
46
– the thylakoid lumen is a continuous aqueous phase enclosed by the thylakoid membrane
Lumen
47
LIGHT REACTIONS OF PHOTOSYNTHESIS ARE PERFORMED IN
GRANUM
48
DARK REACTIONS ARE PERFORMED IN THE
STROMA
49
In plants, photosynthesis generally takes place in leaves, which consist of several layers of cells:
The epidermis The mesophyll Veins
50
– a thin layer a top the epidermis Function: to reduce/prevent water loss from the leaf
Waxy cuticle
51
– is involved in photosynthesis by allowing sunlight to penetrate through its layer. - Cell contains no chloroplast Function: prevent water from getting out and stopping unwanted substances/organisms to getting in.
The Upper Epidermis
52
The ___ is the primary location of Photosynthesis in the plant.
Mesophyll
53
– where photosynthesis mostly occur.
Palisade Mesophyll
54
– its cells are not as closely packed as the cells in the palisade mesophyll layer.
Spongy Mesophyll Layer
55
– is the bottom layer of the leaf and is a one cell thick.
Lower Epidermis
56
allow gases to diffuse in and out of the leaves
stomata
57
2 highly specialized epidermis cells, called
guard cells
58
provide the transport of materials in the leaf. Carries water, minerals, and food through the leaf and the rest of the plant.
Veins
59
 It is an organic molecule that absorbs light  It is found in the chloroplast of the plant cell.  In plants, it gives the leaves, flowers and fruits their colors.
Pigments
60
are the main photosynthetic pigments in plants.
Chlorophyll a and b
61
plays a crucial role in converting light energy to chemical energy.
Chlorophyll a
62
is present in plants, green algae and some cyanobacteria
Chlorophyll b
63
is found in diatoms, dinoflagellates and brown algae
Chlorophyll c
64
is present only in red algae
Chlorophyll d
65
 It gives plants yellow, red or orange pigment  It is known as accessory pigment.
Carotenoids
66
 It is found in the vacuole of plant cell
Flavonoids
67
Most common flavonoids: (gives red pigment)
Anthocyanin
68
Thisis found in petals, fruits, stems, and leaves
Anthocyanin
69
Also known as dark independent reaction
Calvin cycle
70
Calvin cycle isdivided into three main stages:
Carbon fixation Reduction Regeneration
71
Three factors can limit the rate of photosynthesis:
light intensity, carbon dioxide concentration temperature.