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Biology Test 3 ecosystem & nutrition

Total questions: 100

Worksheet time: 52mins

Name
Class
Date
1.
The amount of energy the body gets from food is measured in.
a)
Metabolism
b)
Diet
c)
Calories
d)
Protein
2.
Energy storage nutrients that help the body store some vitamins e.g. oils, butter, margarine
a)
Fats
b)
Carbohydrates
c)
Minerals
d)
Vitamins
3.
Organic compounds that control several body functions. e.g. A, C, K
a)
Carbohydrates
b)
Metabolism
c)
Vitamins
d)
Digestion
4.
The body uses this to carry nutrients and waste. It also helps joints move smoothly.
a)
Fat
b)
Water
c)
Minerals
d)
Vitamin 
5.
The process of converting the energy in food into energy the body can use.
a)
Metabolism
b)
Diet
c)
Digestion
d)
Calories
6.
Nutrients that build and repair tissues and cells e.g. meat, milk, eggs.
a)
Fat
b)
Minerals
c)
Vitamins
d)
Protein
7.
Elements essential for good health. e.g. Calcium, Iron, Potassium 
a)
Protein
b)
Fat
c)
Minerals
d)
Carbohydrates
8.
The purpose of carbohydrates is:
a)
to provide a layer of insulation for protection.
b)
to boost the immune system and fight off infection.
c)
to provide the body with energy.
d)
to help us get a good night's rest.
9.
Which of the following foods is NOT a carbohydrate?
a)
rice
b)
bread
c)
fruit 
d)
fish
10.
Which of the following foods is NOT a protein?
a)
Orange
b)
Steak
c)
Eggs
d)
Chicken
11.
How does calcium help our body?
a)
Builds muscle
b)
Helps eyesight
c)
Develops red blood cells
d)
Builds strong bones
12.

The role of fibre is to

a)

Strengthen teeth and bones

b)

Keep the digestive system healthy

c)

Provides the body with energy

d)

Repairs muscle and tissues

13.

Vitamin C is important because...

a)

It keeps the immune system healthy

b)

Provides the body with energy

c)

Improves eye health and vision

d)

Reduces the risk of brittle bones

14.

Which vitamin or mineral allows the blood to hold oxygen?

a)

Calcium

b)

Iron

c)

Vitamin A

d)

Vitamin D

15.

What element is generally absent in carbohydrates?

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Nitrogen

16.

Which one of the following is a complex carbohydrate

a)

Galactose

b)

Maltose

c)

Glycogen

d)

Sucrose

17.

What is the colour change when a large amount of reducing sugar is tested with a Benedict Solution?

a)

It turns brick-red

b)

It turns blue

c)

It turns green

d)

It turns lilac

18.

What happens to the iodine solution if starch is not present in the tested sample?

a)

Remains yellow

b)

Turns yellow

c)

Turns blue-black

d)

Remains blue-black

19.

Which of the following nutrient is mainly responsible for the production of sebum?

a)

Fats

b)

Carbohydrates

c)

Protein

d)

Vitamin C

20.

What is the deficiency disease that can arise from the lack of protein?

a)

Kwashiorkor

b)

Scurvy

c)

Rickets

d)

Leukemia

21.

Which of the following nutrient has no energy value?

a)

Fats

b)

Protein

c)

Carbohydrate

d)

Vitamin

22.

Which vitamin is lacking when scurvy occurs

a)

Vitamin A

b)

Vitamin E

c)

Vitamin C

d)

Vitamin D

23.

Where is the site of absorption of glucose and amino acids?

a)

lacteal

b)

blood capillaries

c)

pancreas

d)

stomach

24.

Why do the villi have long, finger like projections?

a)

to reduce the thickness of barrier for faster absorption

b)

to maintain concentration gradient across the intestinal wall

c)

to increase the thickness of barrier for faster absorption

d)

to increase the surface area to volume ratio for faster absorption

25.

Which of the following is not an adaptation feature of the small intestine to suit its function for absorption?

a)

the small intestine is long and its inner wall is highly folded

b)

the folds have numerous villi

c)

walls of villi are only one cell thick

d)

the surface area is greatly reduced

26.

Which event is not true in peristaltic action down the oespohagus?

a)

in front of the bolus of food, circular muscle will contract, whereas longitudinal muscle will relax

b)

in front of the bolus of food, both circular and longitudinal muscle will contract

c)

behind the bolus of food, circular muscle will contract, whereas longitudinal muscle will relax

d)

behind the bolus of food, longitudinal muscle will contract, whereas circular muscle will relax

27.

why does your stomach secrete hydrochloric acid?

a)

to deactivate proteases in the stomach

b)

to allow bacteria in food to survive

c)

to denature enzyme salivary amylase

d)

to provide optimal pH for the action of enzyme salivary amylase

28.

a person has been diagnosed with a disease, in which the villi in his small intestine is much shorter than normal. Which process is affected and why?

a)

digestion process; because his small intestines cannot be involved in physical digestion

b)

digestion process; because he will have no enzymes secreted into his small intestine

c)

absorption process; because he has reduced surface area to volume ratio, thus slower rate of absorption than normal

d)

absorption process; because he has thicker membrane, thus slower rate of absorption than normal

29.

The mode of nutrition in which organisms depend on other for food is

a)

Autotrophic nutrition

b)

Heterotrophic nutrition

c)

Both

d)

None

30.

During digestion the carbohydrates breaks down to

a)

Fats and fatty acids

b)

Glucose

c)

Aminoacids

d)

All

31.

Which of the following are the raw materials needed for the photosynthesis process?

a)

Carbondioxide

b)

Water

c)

Glucose

d)

Both a and b

32.

Which of the following is the correct sequence of nutrition process?

a)

Mouth- stomach-oesophagus-small intestine- large intestine

b)

Mouth- oesophagus- stomach- small intestine- large intestine

c)

Mouth- small intestine- large intestine- stomach- oesophagus

d)

Mouth- oesophagus- stomach- large intestine- small intestine

33.

Arrange steps of photosynthesis in sequential manner

1. Absorption of light energy

2. Convertion into chemical energy

3. Splitting of water molecule

4. Reduction of carbondioxide to carbohydrates

a)

1,2 3 4

b)

4,3,2,1

c)

3,2,4,1

d)

1243

34.

Main modes of nutrition :

a)

Heterotrophs

b)

Autotrophs

c)

Insectivorous

d)

Both Heterotrophs and Autotrophs

e)

Both heterotrophs and Insectivores

35.

Which of the following is a parasitic organism?

a)

Lichen

b)

Leech

c)

Dog

d)

Algae

36.

Which bacteria is there in the roots of the plants to convert atmospheric nitrogen to its solid form?

a)

Coronovirus

b)

Nipha Virus

c)

Treponama

d)

Rhizobium

37.

What protects Stomata and helps it in opening and closing?

a)

Guard Cells

b)

Leaf

c)

Stem

d)

Carbon Dioxide

38.

Which of the following is a parasite

a)

Fungus

b)

Cuscuta

c)

Mushroom

d)

Bacteria

39.

Two organisms are good friends and live together. One provides shelter, water, and nutrients while the other prepares and provides food. Such an association of organisms is termed as

a)

saprophyte

b)

parasite

c)

autotrophs

d)

symbiosis

40.

When we observe the lower surface of a leaf through a magnifying lens we see numerous small openings. Which of the following is the term given to such openings?

a)

stomata

b)

midrib

c)

vein

d)

lamina

41.

When we observe the lower surface of a leaf through a magnifying lens we see numerous small openings. Which of the following is the term given to such openings?

a)

stomata

b)

midrib

c)

vein

d)

lamina

42.

In the absence of which of the following will photosynthesis not occur in leaves?

a)

(a) Guard cells

b)

(b) Chlorophyll

c)

(c) Vacuole

d)

(d) Space between cells

43.

Which part of plant takes carbon dioxide from air for photosynthesis?

a)

root hair

b)

flowers

c)

stomata

d)

leaf veins

44.

In the absence of which of the following will photosynthesis not occur in leaves?

a)

(a) Guard cells

b)

(b) Chlorophyll

c)

(c) Vacuole

d)

(d) Space between cells

45.

Two organisms are good friends and live together. One provides shelter, water, and nutrients while the other prepares and provides food. Such an association of organisms is termed as

a)

(a) saprophyte

b)

(b) parasite

c)

(c) autotroph

d)

(d) symbiosis

46.

Which of the following statements is/are correct?

(i) All green plants can prepare their own food.

(ii) Most animals are autotrophs.

(iii) Carbon dioxide is not required for photosynthesis.

(iv) Oxygen is liberated during photosynthesis.

Choose the correct answer from the options below:

a)

(a) (i) and (iv)

b)

(b) (ii) only

c)

(c) (ii) and (iii)

d)

(d) (i) and (ii)

47.

Pitcher plant traps insects because it

a)

(a) is a heterotroph.

b)

(b) grows in soils which lack in nitrogen.

c)

(c) does not have chlorophyll.

d)

(d) has a digestive system like human beings.

48.

cuscuta is a example of

a)

(a) autotroph

b)

(b) parasite

c)

(c) saprotroph

d)

(d) host

49.

Oxygen liberated during photosynthesis come from ………………

a)

(a) Water

b)

(b) Carbon dioxide

c)

(c) Glucose

d)

(d) ChlorophyII

50.

The mode of nutrition in a green plant is ………………

a)

(a) Heterotrophic

b)

(b) Saprophytic

c)

(c) Autotrophic

d)

(d) Holozoic

51.

Rhizobium is an example of

a)

(a) Symbiosis

b)

(b) Parasites

c)

(c) Insectivorous

d)

(d) none of these

52.

Iodine used to detect presence of starch. It gives starch

a)

(a) red colour

b)

(b) green colour

c)

(c) blue-black colour

d)

(d) colourless appearance

53.

Which of the following statements is NOT true?

a)

(a) Heterotrophs cannot prepare their own food.

b)

(b) Dodder is an example of parasite.

c)

(c) Saprophytes are green.

d)

(d) Pulses and Beans are legumes.

54.

Guard cells of stoma are (stomata ki guard cells kesi hoti hei)

a)

irregular in shape

b)

convex in shape

c)

long and cylindrical in shape

d)

kidney-shaped

e)

Heat - shaped

55.

Organisms other than plants which contain Chlorophyll are

a)

Algae

b)

Protozoa

c)

Virus

d)

Fungi

56.

Foods synthesized in the process of Photosynthesis by plants is stored as

a)

Starch

b)

Protein

c)

Vitamins

d)

Fats

57.

Which of the following component of food contains Nitrogen

a)

Carbohydrate

b)

Protein

c)

Fat

d)

Minerals

58.

insectivorous plant is

a)
b)
c)
d)
59.

Which of the following raw material is available in the air for photosynthesis?

a)

oxygen

b)

carbon dioxide

c)

nitrogen

d)

hydrogen

60.

Identify the plant

a)

dodder

b)

venus fly trap

c)

mushroom

d)

pitcher plant

61.

Identify the plant

a)

dodder

b)

sundew

c)

bladderwort

d)

cuscutta

62.

Identify the plant

a)

dodder

b)

sundew

c)

venus flytrap

d)

bladderwort

63.

Identify the bacteria

a)

Staphylococcus

b)

Bacillus

c)

Pseudomonas

d)

rhizobium

64.

Identify what is shown in the picture

a)

chlorophyll

b)

stomata

c)

carbon dioxide

d)

veins

65.

What is the purpose of photosynthesis?

a)

To release energy

b)

To create glucose

c)

To grow

d)

To get oxygen for respiration

66.

Which of these is the correct equation for photosynthesis?

a)

6O2 + C6H12O6 --> 6CO2 + 6H2O

b)

6O2 + 6CO2 --> C6H12O6 + 6H2O

c)

6CO2 + 6H2O --> 6O2 + C6H12O6

d)

6CO2 + 6H2O --> O2 + C6H12O6

67.

A student wanted to see if covering a leaf in foil would stop it from producing starch. Why should the student put the plant in a dark cupboard for 48 hours before returning it to the light and starting the experiment?

a)

To make the results reliable

b)

So that the plant would photosynthesise faster when returned to the light

c)

So that any starch already in the leaf was used up by the plant

68.

Pitcher plant traps insects because it

a)

(a) is a heterotroph.

b)

(b) grows in soils which lack in nitrogen.

c)

(c) does not have chlorophyll.

d)

(d) has a digestive system like human beings.

69.

Oxygen liberated during photosynthesis come from ………………

a)

(a) Water

b)

(b) Carbon dioxide

c)

(c) Glucose

d)

(d) ChlorophyII

70.

The mode of nutrition in a green plant is ………………

a)

(a) Heterotrophic

b)

(b) Saprophytic

c)

(c) Autotrophic

d)

(d) Holozoic

71.

Which of the following statements is NOT true?

a)

(a) Heterotrophs cannot prepare their own food.

b)

(b) Dodder is an example of parasite.

c)

(c) Saprophytes are green.

d)

(d) Pulses and Beans are legumes.

72.

Foods synthesized in the process of Photosynthesis by plants is stored as

a)

Starch

b)

Protein

c)

Vitamins

d)

Fats

73.

Which of the following component of food contains Nitrogen

a)

Carbohydrate

b)

Protein

c)

Fat

d)

Minerals

74.

What is the purpose of photosynthesis?

a)

To release energy

b)

To create glucose

c)

To grow

d)

To get oxygen for respiration

75.

The liver secretes

a)

PEPSIN

b)

AMYLASE

c)

BILE

d)

TRYPSIN

76.

The smallest chamber in a cow's stomach is

a)

rumen

b)

abomasum

c)

omasum

d)

reticulum

77.

A plant-eating animal that brings back swallowed food into the mouth to chew it again is called a ruminant and the process is called

a)

Digestion

b)

Rumination

c)

Absorption

d)

Assimilation

78.

Which of the following is not part of the classification community?

a)

Fox

b)

Tree

c)

Sun

d)

Bear

79.
An individual living thing is a/an __________.
a)
habitat
b)
ecosystem
c)
organism
d)
population
80.
All of the living and nonliving things in an area that interact with each other are called a/an ______.
a)
community
b)
habitat
c)
population
d)
ecosystem
81.
Temperature, light, air, water, and soil are all  _____  parts of the environment
a)
alive
b)
biotic 
c)
abiotic
d)
living
82.

Which of the following is not the biotic component of ecosystem

a)

Herbivores

b)

Consumers

c)

Soil

d)

Decomposer

e)

All the above

83.

Pyramid of energy is

a)

Upright

b)

Inverted

c)

Sometime inverted

d)

Does not exist

84.

What type of factor is this?

a)

Biotic

b)

Abiotic

85.

Biotic can be defined as

a)

the living parts of an environment

b)

non-living parts of an environment

c)

rocks and water

d)

snakes and water

86.

Which of the following describes parasitism?

a)

Fern plant growing on a trunk of a tree

b)

Barnacle sticking on the shell of an oyster

c)

An orchid living on a truck of a mahogany tree

d)

An insect larva staying under the leaves of a plant

87.

Why are plants considered as producers?

a)

Plants convert energy from the sun into chemical energy in the form of glucose (food).

b)

Plants produce root crops that supply carbohydrates to animals.

c)

Plants provide vegetable for animals and human consumption.

d)

Plants produce fruits that can be eaten by animals.

88.

Is soil a biotic or abiotic factor?

a)

biotic

b)

abiotic

89.

Where does the food chain START?

a)

with consumers that eat grass

b)

with the sun giving energy to producers

c)

with the sun giving energy to consumers

d)

with consumers eating other consumers

90.

 Animals that eat a variety of meats, fruits, and vegetables are

a)

producers

b)

Carnivores

c)

omnivores

d)

herbivores

91.
The study of the interaction of living and nonliving things in the environment.
a)
biology
b)
ecology
c)
zoology
d)
psychology
92.
the living parts of an ecosystem
a)
biotic factors
b)
biology
c)
abiotic factors
d)
animals
93.

In any food chain, the first trophic level is occupied by:

a)

Herbivores

b)

Secondary consumer

c)

Producers

d)

Keystone species

94.

Where can you find nitrogen-fixing bacteria?

a)

decaying plants and animals

b)

waterlogged soil

c)

root nodules

d)

stems of leguminous plants

95.
An animal that eats other animals is a....
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
96.

What is an ecosystem??

a)

A group of organism of one species

b)

All the living and non-living things that interact in an area

c)

The study of the interaction between living organism and their environment

d)

Soil, water, air and sunliight

97.

What is the study about ecosytem??

a)

Environmental Science

b)

Biology

c)

Ecology

d)

Botany

98.

Is a deer an abiotic or biotic factor?

a)

abiotic

b)

biotic

99.

What is the difference between the biotic and abiotic factors?

a)

Biotic factors are living things and abiotic factors are nonliving things.

b)

Biotic factors are nonliving things and abiotic factors are living things.

100.

Why are plants considered as producers?

a)

Plants convert energy from the sun into chemical energy in the form of glucose (food).

b)

Plants produce root crops that supply carbohydrates to animals.

c)

Plants provide vegetable for animals and human consumption.

d)

Plants produce fruits that can be eaten by animals.

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