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1Life processes

Total questions: 40

Worksheet time: 24mins

Name
Class
Date
1.

In amoeba food is digested in

a)

food vacuole

b)

mitochondria

c)

psuedoodia

d)

chloroplast

2.

The breakdown of pyruvate to give carbon dioxide water and energy takes place in

a)

Cytoplasm

b)

Mitochondria

c)

chloroplast

d)

Nucleus

3.

Saliva contains an enzyme for digestion of starch

a)

Amylase

b)

Lipase

c)

Trypsin

d)

Glycerol

4.

What protects the inner lining of stomach from hydrochloric acid

a)

Carbon dioxide

b)

Protein

c)

Mucus

d)

Fat layer

5.

Which one is the structural and functional unit of kidney

a)

Nexon

b)

Nephron

c)

Ureter

d)

Urethra

6.

In this type of nutrition solid and complex organic food is directly taken into the body

a)

Saprophytic nutrition

b)

Parasitic nutrition

c)

Holozoic nutrition

d)

None of the above

7.

What is correct about bile juice in human digestion

a)

Bile does not contain any enzyme

b)

Bile is alkaline

c)

Bile salt is present which helps to Tu emulsify the fat

d)

All of the above

8.

Pulmonary veins contain

a)

Oxygenated blood

b)

Deoxygenated blood

c)

Both oxygenated and deoxygenated blood

d)

All of the above

9.

Why do the walls of trachea not collapse when there is less air in it?

a)

Supported by rings of cartilage

b)

Supported by Rib cage

c)

No air is left the question is wrong

d)

Because of strong muscles

10.

Why does lack of oxygen in muscles often lead to cramps among cricketers?

a)

Formation of lactic acid during lack of oxygen

b)

Conversion of pyruvate to ethanol and CO2 in absence of oxygen

c)

Due to formation of CO2 and H2O in mitochondria

d)

None of the above

11.
Functional units of food absorption are-
a)
VILLI
b)
STOMACH
c)
LIVER
d)
FOOD PIPE
12.
The trachea divides into two smaller tubes called ______.
a)
Trachea
b)
Bronchi
c)
Alveoli
d)
Bronchioles
13.
Storage form of glucose molecules (C6H12O6) in plant is-
a)
 Starch
b)
Cellulose
c)
Glycogen
d)
Glucagon
14.
Which of the following is a product of fermentation?
a)
Methanol
b)
Oxygen
c)
Ethanol
d)
Lactic acid
15.

Plants and  animals releases carbon dioxide as a form of ...

a)

Respiration

b)

Excretion

c)

Nutrition

d)

Reproduction

16.

The _____ contains the energy that is released in the respiration process.

a)

oxygen

b)

fructose

c)

glucose

d)

carbon dioxide

17.

Write the water soluble form of proteins.

a)

Glucose

b)

Amino acids

c)

Glycerol

d)

Pyruvate

18.

The blood leaving the tissues becomes richer in

a)

Carbon dioxide

b)

Water

c)

Heamoglobin

d)

Oxygen

19.
What are the products of anaerobic respiration?
a)
Glucose and oxygen
b)
Carbon dioxide and water
c)
Lactic acid
d)
Carbon monoxide
20.
What is cellular respiration?
a)
the breakdown of glucose  to release ATP
b)
the breakdown of glucose to release NADH
c)
the breakdown of glucose to release FADH
d)
the breakdown of glucose to release carbon
21.

Which of the following structure is where cellular respiration occurs in the cell?

a)

nucleus

b)

cytoplasm

c)

mitochondria

d)

vacuoles

22.

It is the site of gaseous exchange in human lungs.

a)

villi

b)

alveoli

c)

trachea

d)

larynx

23.

In unicellular organisms like amoeba gaseous exchange takes place through the process of ____________.

a)

osmosis

b)

transportation

c)

diffusion

d)

elimination

24.

_________________ artery carries deoxygenated blood.

a)

aortic

b)

pulmonary

c)

renal

d)

inferior

25.

_______________ is the final product of glycolysis.

a)

carbon dioxide

b)

ATP

c)

Pyruvic acid

d)

acetyl coA

26.

The continuous contractions and relaxations of the digestive organs is called

a)

peristalsis

b)

photosynthesis

c)

expansion

d)

constriction

27.

Which plant tissue transports water and minerals from the roots to the leaf?

a)

Xylem

b)

Phloem

c)

Parenchyma

d)

Collenchyma

28.

The movement of food in phloem is called:

a)

transpiration

b)

translocation

c)

respiration

d)

evaporation

29.

Blood vessel which carries the blood from the heart to the entire body:

a)

capillary

b)

Vein

c)

All

d)

artery

30.

Name the tube which connects the kidneys to the urinary bladder.

a)

Urethra

b)

Nephron

c)

Tubule

d)

Ureter

31.

The substance in plants and animals that act as an energy currency.

a)

DNA

b)

RNA

c)

ADP

d)

ATP

32.
The basic functional unit of human kidney is-
a)
NEPHRON
b)
SYNAPSE
c)
NEURON
d)
GLOMERULUS
33.

chloroplasts are present in the ___________ of the leaf.

a)

palisade parenchyma

b)

aerenchyma

c)

sclrenchyma

d)

collenchyma

34.

Blood consist of what fluid medium?

a)

LYMPH

b)

PLATELETS

c)

PLASMA

d)

ALL OF THESE

35.

One cell-thick vessels are called

a)

ARTERIES

b)

VEINS

c)

CAPILLARIES

d)

PULMONARY ARTERY

36.

Name the pores in a leaf through which respi-ratory exchange of gases takes place.

a)

Lenticels

b)

Vacuoles

c)

Xylem

d)

Stomata

37.

Which part of nephron allows the selective reabsorption of useful substances like glucose, amino acids, salts and water into the blood capillaries?

a)

Tubule

b)

Glomerulus

c)

Bowman’s capsule

d)

Ureter

38.

Identify the correct path of urine in the human body.

a)

Kidney → urinary bladder → urethra → ureter

b)

Urinary bladder → ureter → kidney → urethra

c)

Kidney → ureter → urethra → urinary bladder

d)

Kidney → ureter → urinary bladder → urethra

39.

Which is the correct sequence of body parts in the human alimentary canal?

a)

Mouth → stomach → small intestine → large intestine → oesophagus

b)

Mouth → oesophagus → stomach → small intestine → large intestine

c)

Mouth → stomach → oesophagus → smallintestine → large intestine

d)

Mouth → oesophagus → stomach → large intestine → small intestine

40.

Guard cells are usually ___________________

a)

rectangular in shape

b)

pear-shaped

c)

spherical

d)

kidney shaped

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