Nutrition in Plants and Animals Test

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Nutrition in Plants and Animals Test - 9

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Weekly Quiz Competition

Question 1
1 / -0

Rumen of a cow is a part of its

A
intestine

B
stomach

C
caecum

D
rectum

Solution

Rumen of a cow is a part of its stomach. It serves as the primary site for microbial fermentation of ingested feed.
Question 2
1 / -0

The epithelial cells lining the stomach of vertebrates are protected from damage by HCl because

A
HCl acid is too dilute

B
the epithelial cells are resistant to the action of HCl acid

C
HCl is neutralised by alkaline gastric juice

D
the epithelial cells are covered with a mucous secretion

Solution

The epithelial cells lining the stomach of vertebrates are protected from damage by HCl because the epithelial cells are covered with a mucous secretion.
Question 3
1 / -0

What is the chief function of HCl?

A
To dissolve enzyme secreted in the stomach

B
To maintain a low pH to prevent growth of microorganisms

C
To maintain low pH to facilitate absorption

D
To maintain low pH to activate pepsinogen to form pepsin

Solution

HCl maintains low pH to activate pepsinogen to form pepsin.
Question 4
1 / -0

Pepsin differs from trypsin in such a way that it digests

A
protein in alkaline medium in stomach

B
protein in acidic medium in duodenum

C
protein in acidic medium in stomach

D
protein in alkaline medium in duodenum

Solution

Pepsin differs from trypsin in such a way that it digests protein in acidic medium in stomach.
Question 5
1 / -0

Bilirubin and biliverdin are found in

A
blood

B
bile

C
pancreatic juice

D
saliva

Solution

Bilirubin and biliverdin are found in bile. Bilirubin is created by the activity of biliverdin reductase on biliverdin, a green tetrapyrrolic bile pigment that is also a product of heme catabolism. Bilirubin, when oxidized, reverts to become biliverdin once again.
Question 6
1 / -0

In people addicted to alcohol, the liver gets damaged because it

A
has to detoxify the alcohol

B
stores excess of glycogen

C
is over stimulated to secrete biles

D
accumulates excess of fats

Solution

In people addicted to alcohol, the liver gets damaged because it has to detoxify the alcohol.
Question 7
1 / -0

Liver secretes

A
digestive enzymes only

B
hormones

C
acids only

D
no enzymes

Solution

Liver does not secrete any enzymes.It secretes bile that it produces every day from the conversion of broken down hemoglobin.
Question 8
1 / -0

A pound of butter contains more usable energy than a pound of sugar for a human, because

A
sugar contains much more water than butter

B
a fat molecule has more carbon hydrogen bonds than a sugar molecule

C
butter is an animal product, whereas the sugar is a plant product

D
there is much more waste in digestion and absorption of sugar than of butter

Solution

A pound of butter contains more usable energy than a pound of sugar for a human, because a fat molecule has more carbon hydrogen bonds than a sugar molecule.
Question 9
1 / -0

Glucose is converted into glycogen in the liver and stored in

A
liver

B
liver and spleen

C
liver and muscles

D
spleen and muscles

Solution

Glucose is converted into glycogen in the liver and stored in liver and muscles.
Question 10
1 / -0

Emulsification of fats by bile takes place in the

A
liver

B
stomach

C
duodenum

D
pancreas

Solution

Emulsification of fats by bile takes place in the duodenum. It is the breaking up of fat globules into much smaller emulsion droplets.
Question 11
1 / -0

In which of the following parts of a plant is chlorophyll present?

A
On the surface of chloroplast

B
Dispersed throughout chloroplast

C
In the stroma of chloroplast

D
In the grana of chloroplast

Solution

Chlorophyll is present in the grana of chloroplast. It is the main pigment in green plantsrequired for photosynthesis.
Question 12
1 / -0

Grana refers to

A
stacks of thylakoids in plastids

B
byproduct of photosynthesis

C
site of respiration in plants

D
site of nitrogen fixation in plants

Solution

Grana refers to stacks of thylakoids in plastids.They are the site of the light-dependent reactions of photosynthesis.
Question 13
1 / -0

Dark reaction in photosynthesis is called so because

A
it can occur in dark

B
it does not require direct light

C
it cannot occur during daytime

D
it occurs more rapidly at night

Solution

Dark reaction in photosynthesis is called so because it does not require direct light for the reaction to occur. This reaction occurs in the stroma, the fluid-filled area of a chloroplast outside of the thylakoid membranes.
Question 14
1 / -0

Yellow colour of leaves is due to the presence of

A
xanthophylls

B
melanin

C
anthocyanins

D
chlorophyll

Solution

Xanthophylls are the typical yellow pigments of leaves. A green leaf is green because of the presence of a pigment known as chlorophyll, which is inside an organelle called a chloroplast. Anthocyanins are water-soluble vacuolar pigments that may appear red, purple, or blue depending on the pH. Melanin is a class of compounds that serves as a pigment with different structures responsible for dark, tan, yellowish/reddish pigments in marine animals.
Question 15
1 / -0

Which of the following elements helps in the photolysis of water?

A
Chlorine

B
Zinc

C
Boron

D
Copper

Solution

Chlorine helps in the photolysis of water. Photolysis is part of the light-dependent reactions of photosynthesis.
Question 16
1 / -0

Loss of water in the form of vapour through stomata is called

A
evaporation

B
guttation

C
transpiration

D
None of these

Solution

Loss of water in the form of vapour through stomata is called transpiration.
Question 17
1 / -0

How is transpiration important for a plant?

A
It helps in the absorption of minerals.

B
It helps to regulate temperature.

C
It is a major driving force in movement of water in xylem.

D
All of the above

Solution

Transpiration is important for a plant because it helps in the absorption of minerals, regulation of temperature and is the major driving force in movement of water in xylem.
Question 18
1 / -0

Which of the following do(es) not help a plant to restrict transpiration?

A
Sunken stomata

B
Hairy leaves

C
A thick cuticle

D
Flattened stems

Solution

Flattened stems in a plant don't restrict transpiration.
Question 19
1 / -0

Water in the plants is transported by the tissue called

A
phloem

B
xylem

C
leaves

D
parenchyma

Solution

Water in the plants is transported by the tissue called xylem.
Question 20
1 / -0

Cuscuta is an example of

A
autotrophs

B
saprotrophs

C
symbionts

D
parasites

Solution

Cuscuta is a parasitic plant. It has no chlorophyll and cannot make its own food by photosynthesis. Instead, it grows on other plants, using their nutrients for its growth and weakening the host plant.

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Re-Attempt Weekly Quiz Competition

Nutrition in Plants and Animals Test - 9

Result

Nutrition in Plants and Animals Test - 9

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SHARING IS CARING

Question 1

intestine

stomach

caecum

rectum

Solution

Question 2

HCl acid is too dilute

the epithelial cells are resistant to the action of HCl acid

HCl is neutralised by alkaline gastric juice

the epithelial cells are covered with a mucous secretion

Solution

Question 3

To dissolve enzyme secreted in the stomach

To maintain a low pH to prevent growth of microorganisms

To maintain low pH to facilitate absorption

To maintain low pH to activate pepsinogen to form pepsin

Solution

Question 4

protein in alkaline medium in stomach

protein in acidic medium in duodenum

protein in acidic medium in stomach

protein in alkaline medium in duodenum

Solution

Question 5

blood

bile

pancreatic juice

saliva

Solution

Question 6

has to detoxify the alcohol

stores excess of glycogen

is over stimulated to secrete biles

accumulates excess of fats

Solution

Question 7

digestive enzymes only

hormones

acids only

no enzymes

Solution

Question 8

sugar contains much more water than butter

a fat molecule has more carbon hydrogen bonds than a sugar molecule

butter is an animal product, whereas the sugar is a plant product

there is much more waste in digestion and absorption of sugar than of butter

Solution

Question 9

liver

liver and spleen

liver and muscles

spleen and muscles

Solution

Question 10

liver

stomach

duodenum

pancreas

Solution

Question 11

On the surface of chloroplast

Dispersed throughout chloroplast

In the stroma of chloroplast

In the grana of chloroplast

Solution

Question 12

stacks of thylakoids in plastids

byproduct of photosynthesis

site of respiration in plants

site of nitrogen fixation in plants

Solution