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Lab 7 practical + quiz

front 1

Approximately how many years ago did animals begin breathing oxygen?

  • 1 billion 380 million 280 million 4.5 billion

back 1

380 million

front 2

Before oxygen was present in the air, how did organisms obtain oxygen from the water?

they drank it
breathing via lungs
osmosis
diffusion

back 2

diffusion

front 3

Which system is this as indicated by the arrow?

digestive

respiratory

circulatory

immune

back 3

circulatory

front 4

These oxygen molecules have to cross ______ layers of cell membrane to enter the bloodstream.

3
5
2
4

back 4

4

front 5

Do lungs have any contractible muscle tissue?

maybe

no

yes

I don't know

back 5

no

front 6

This structure separates your _________________ from your abdomen.

large intestine
trachea
thorax
small intestine`

back 6

thorax

front 7

The conducting zone aspect of respiration begins with your ___________________ .

lungs
nose
head
diaphragm

back 7

nose

front 8

Your nose and __________________ warms and moistens incoming air.

lungs
sinuses
heart
gills

back 8

sinuses

front 9

What is the name of the structure as indicated here by the arrow?

epiglottis
esophagus
trachea
larynx

back 9

epiglottis

front 10

What is the name given to these structures as indicated by the small and large arrows?

Alveolar sacs
Lungs
Alveolar ducts
Brachiophiles

back 10

Alveolar ducts

front 11

What is the name of these portions of this molecule of ATP? Tri-Phosphates
Di-Phosphates
Tri-Amine
Tri-Hydrogen

back 11

Tri-Phosphates

front 12

Where is most ATP produced?

golgi bodies
endoplasmic reticulum
cytoplasm
mitochondria

back 12

mitochondria

front 13

What is the name of this structure as indicated by the arrow?

Granules

Ribosome

Cristae

Matrix

back 13

matrix

front 14

Where does Glycolysis occur in the cell?

cytoplasm
cell membrane
ribosome
mitochondria

back 14

cytoplasm

front 15

What is occurring here as being shown by the arrow?

NADH is carrying a hydrogen to the mitochondria
NADH is carrying an oxygen to the mitochondria
NADH is carrying an ATP to the mitochondria
None of these

back 15

NADH is carrying a hydrogen to the mitochondria

front 16

These two Pyruvate molecules can then break down further in which of these ways?

aerobic
both of these
anaerobic
neither of these

back 16

both of these

front 17

The Krebs Cycle occurs in the ___________________ and generates ____________________ as waste.

cytoplasm, carbon dioxide

mitochondrial matrix, carbon dioxide

mitochondrial matrix, water

cytoplasm, water

back 17

mitochondrial matrix, carbon dioxide

front 18

Are these Hydrogen ions delivered by the same type of molecule?

yes

no

they aren't delivered by a molecule

none of these

back 18

no

front 19

How is this Hydrogen ion passing across this membrane?

ATP

Diffusion

Active transport

Osmosis

back 19

diffusion

front 20

How many of these ATPs are created at the end of this cycle?

30

36

34

32

back 20

34