Biology Test 24

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Biology Test 24

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Question 1/30
1 / -0

Directions For Questions

Rafflesia

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Which one of the following is the biggest flower in the world ?

Correct

Wrong

Skipped
A
Sun flower

Correct

Wrong

Skipped
B
Lotus

Correct

Wrong

Skipped
C
Glory Lily

Correct

Wrong

Skipped
D
Rafflesia

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Solutions
Rafflesia
Question 2/30
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Directions For Questions

Mitosis

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Which of the following is not a source of genetic variation in sexual reproduction?

Correct

Wrong

Skipped
A
Crossing over

Correct

Wrong

Skipped
B
Mutation

Correct

Wrong

Skipped
C
Non-disjunction

Correct

Wrong

Skipped
D
Mitosis

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Solutions
Mitosis
Question 3/30
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Directions For Questions

Dichogamy

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In a bisexual flower, if androecium and gynoecium mature at different times, the phenomenon is known as

Correct

Wrong

Skipped
A
Dichogamy

Correct

Wrong

Skipped
B
Herkogamy

Correct

Wrong

Skipped
C
Heterogamy

Correct

Wrong

Skipped
D
Monogamy

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Solutions
Dichogamy
Question 4/30
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Directions For Questions

decreases slightly

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As you go down into a well, your weight_____.

Correct

Wrong

Skipped
A
increases slightly

Correct

Wrong

Skipped
B
decreases slightly

Correct

Wrong

Skipped
C
remains exactly the same

Correct

Wrong

Skipped
D
None of the above

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Solutions
decreases slightly
Question 5/30
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Directions For Questions

Basidiocarp

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Edible part of Mushroom is

Correct

Wrong

Skipped
A
Primary mycelium

Correct

Wrong

Skipped
B
Fungal hyphae

Correct

Wrong

Skipped
C
Basidiocarp

Correct

Wrong

Skipped
D
Basidiospores

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Solutions
Basidiocarp
Question 6/30
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Directions For Questions

well developed pith

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Monocot root differs from dicot root in having____-.

Correct

Wrong

Skipped
A
well developed pith

Correct

Wrong

Skipped
B
radially arranged vascular bundles

Correct

Wrong

Skipped
C
scattered vascular bundles

Correct

Wrong

Skipped
D
open vascular bundles

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Solutions
well developed pith
Question 7/30
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Directions For Questions

White blood cells

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Leukaemia or blood cancer is characterised by abnormal increase of the -

Correct

Wrong

Skipped
A
White blood cells

Correct

Wrong

Skipped
B
Blood platelets

Correct

Wrong

Skipped
C
Blood Plasma

Correct

Wrong

Skipped
D
Red blood cells

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Solutions
White blood cells
Question 8/30
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Directions For Questions

All of the above

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Photo-oxidation is ?

Correct

Wrong

Skipped
A
photorespiration

Correct

Wrong

Skipped
B
photolysis

Correct

Wrong

Skipped
C
light and oxygen induced breakdown

Correct

Wrong

Skipped
D
All of the above

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Solutions
All of the above
Question 9/30
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Directions For Questions

Rusting of iron

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Which of the following is a chemical change?

Correct

Wrong

Skipped
A
Tempering of iron

Correct

Wrong

Skipped
B
Bending of iron

Correct

Wrong

Skipped
C
Rusting of iron

Correct

Wrong

Skipped
D
Melting of iron

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Solutions
Rusting of iron
Question 10/30
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Directions For Questions

pterophyta

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Ferns belongs to______.

Correct

Wrong

Skipped
A
anthophyta

Correct

Wrong

Skipped
B
bryophyta

Correct

Wrong

Skipped
C
pterophyta

Correct

Wrong

Skipped
D
None of these

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Solutions
pterophyta
Question 11/30
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Directions For Questions

cow

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Bovine spongiform encephalopathy is a disease caused by prions in _______.

Correct

Wrong

Skipped
A
cow

Correct

Wrong

Skipped
B
sheep

Correct

Wrong

Skipped
C
man

Correct

Wrong

Skipped
D
potato

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Solutions
cow
Question 12/30
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Directions For Questions

2

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The number of ATP produced when a molecule of glucose undergoes fermentation is?

Correct

Wrong

Skipped
A
4

Correct

Wrong

Skipped
B
36

Correct

Wrong

Skipped
C
2

Correct

Wrong

Skipped
D
38

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Solutions
2
Question 13/30
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Directions For Questions

Sodium

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Which one of the following is not a second messenger in hormone action?

Correct

Wrong

Skipped
A
Calcium

Correct

Wrong

Skipped
B
Sodium

Correct

Wrong

Skipped
C
cAMP

Correct

Wrong

Skipped
D
cGMP

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Solutions
Sodium
Question 14/30
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Directions For Questions

proteins

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Pulses are a good source of ?

Correct

Wrong

Skipped
A
carbohydrates

Correct

Wrong

Skipped
B
vitamins

Correct

Wrong

Skipped
C
proteins

Correct

Wrong

Skipped
D
fats

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Solutions
proteins
Question 15/30
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Directions For Questions

Latin

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Throughout the world, official species names are in..

Correct

Wrong

Skipped
A
Latin

Correct

Wrong

Skipped
B
Greek

Correct

Wrong

Skipped
C
English

Correct

Wrong

Skipped
D
French

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Solutions
Latin
Question 16/30
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Directions For Questions

Lakes

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World\'s first genetically modified dairy calf has been named as?

Correct

Wrong

Skipped
A
Dolly

Correct

Wrong

Skipped
B
jolly

Correct

Wrong

Skipped
C
Lakes

Correct

Wrong

Skipped
D
Rivers

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Solutions
Lakes
Question 17/30
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Directions For Questions

For the majority of the cell cycle DNA is stored as chromatin.

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Choose the correct statement:

Correct

Wrong

Skipped
A
Complementary DNA strans run in a parallel direction based on the 5\' and 3\' ends.

Correct

Wrong

Skipped
B
The product of DNA replication is two DNA molecules, one of which is the original molecule and the other an entirely new molecule.

Correct

Wrong

Skipped
C
For the majority of the cell cycle DNA is stored as chromatin.

Correct

Wrong

Skipped
D
Both a and c are correct

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Solutions
For the majority of the cell cycle DNA is stored as chromatin.
Question 18/30
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Directions For Questions

Identify more of the yet unknown species of organisms on our planet.

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In order to better understand the extent of current extinctions it will be necessary to do which of the following?

Correct

Wrong

Skipped
A
Focus intensely on identifying more species of mammals and birds.

Correct

Wrong

Skipped
B
Differentiate between plant extinction and animal extinction.

Correct

Wrong

Skipped
C
Use the average extinction rates of vertebrates as a baseline.

Correct

Wrong

Skipped
D
Identify more of the yet unknown species of organisms on our planet.

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Solutions
Identify more of the yet unknown species of organisms on our planet.
Question 19/30
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Directions For Questions

Crypts of Lieberkuhn

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Succus entericus is secreted by _______.

Correct

Wrong

Skipped
A
Brunner’s glands

Correct

Wrong

Skipped
B
Auerbach’s plexus

Correct

Wrong

Skipped
C
Crypts of Lieberkuhn

Correct

Wrong

Skipped
D
Peyers patches

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Solutions
Crypts of Lieberkuhn
Question 20/30
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Directions For Questions

Urea

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Production of which one of the following is a function of the liver ?

Correct

Wrong

Skipped
A
Lipase

Correct

Wrong

Skipped
B
Urea

Correct

Wrong

Skipped
C
Mucus

Correct

Wrong

Skipped
D
Hydrochloric acid

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Solutions
Urea
Question 21/30
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Directions For Questions

rejection of one or more hypotheses

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A successful scientific experiment will result only in _____ .

Correct

Wrong

Skipped
A
accepting many hypotheses

Correct

Wrong

Skipped
B
rejection of one or more hypotheses

Correct

Wrong

Skipped
C
proving a hypothesis

Correct

Wrong

Skipped
D
confirming predictions

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Solutions
rejection of one or more hypotheses
Question 22/30
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Directions For Questions

Chromosomes

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___________ are DNA threads which appear inside the nucleus at the time of cell division.

Correct

Wrong

Skipped
A
Spindle fibers

Correct

Wrong

Skipped
B
Centrioles

Correct

Wrong

Skipped
C
Asters

Correct

Wrong

Skipped
D
Chromosomes

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Solutions
Chromosomes
Question 23/30
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Directions For Questions

ribosomes

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What part of the cell makes proteins?

Correct

Wrong

Skipped
A
ribosomes

Correct

Wrong

Skipped
B
mitochondria

Correct

Wrong

Skipped
C
lysosomes

Correct

Wrong

Skipped
D
vacuole

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Solutions
ribosomes
Question 24/30
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Directions For Questions

a,b, and c are correct

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Respiration :

Correct

Wrong

Skipped
A
Involves the use of electron transport chains

Correct

Wrong

Skipped
B
Involves the breakdown of glucose to form high energy compounds

Correct

Wrong

Skipped
C
has steps which occur in both the cytoplasm and mitochondria

Correct

Wrong

Skipped
D
a,b, and c are correct

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Solutions
a,b, and c are correct
Question 25/30
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Directions For Questions

Irritable Bowi Syndrome (IBS)

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Which of the following is not a genetic disorder?

Correct

Wrong

Skipped
A
Down-syndrome

Correct

Wrong

Skipped
B
Haemophilia

Correct

Wrong

Skipped
C
Irritable Bowi Syndrome (IBS)

Correct

Wrong

Skipped
D
Sickle cell Anaemia

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Solutions
Irritable Bowi Syndrome (IBS)
Question 26/30
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Directions For Questions

Stem

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The cactus is a modified form of?

Correct

Wrong

Skipped
A
Root

Correct

Wrong

Skipped
B
Flower

Correct

Wrong

Skipped
C
Stem

Correct

Wrong

Skipped
D
Leaves

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Solutions
Stem
Question 27/30
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Directions For Questions

Mycorrhiza

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Which one of the following is a useful functional association between fungi and the roots of higher plants ?

Correct

Wrong

Skipped
A
Biofertilizer

Correct

Wrong

Skipped
B
Coralloid root

Correct

Wrong

Skipped
C
Lichen

Correct

Wrong

Skipped
D
Mycorrhiza

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Solutions
Mycorrhiza
Question 28/30
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Directions For Questions

a radioactively labelled single stranded DNA molecule.

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In genetic fingerprinting, the ‘probe’ refers to _______.

Correct

Wrong

Skipped
A
a radioactively labelled single stranded RNA molecule.

Correct

Wrong

Skipped
B
a radioactively labelled single stranded DNA molecule.

Correct

Wrong

Skipped
C
a radioactively labelled double stranded DNA molecule.

Correct

Wrong

Skipped
D
a radioactively labelled double stranded RNA molecule.

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Solutions
a radioactively labelled single stranded DNA molecule.
Question 29/30
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Directions For Questions

number and kinds of predators in the ecosystem

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Which is a biotic factor that affects the size of a population in a specific ecosystem?

Correct

Wrong

Skipped
A
average temperature of the ecosystem

Correct

Wrong

Skipped
B
type of soil in the ecosystem

Correct

Wrong

Skipped
C
number and kinds of predators in the ecosystem

Correct

Wrong

Skipped
D
concentration of oxygen in the ecosystem

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Solutions
number and kinds of predators in the ecosystem
Question 30/30
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Directions For Questions

Birds

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\'Darwin finches\' refers to a group of

Correct

Wrong

Skipped
A
Birds

Correct

Wrong

Skipped
B
Lizards

Correct

Wrong

Skipped
C
Fishes

Correct

Wrong

Skipped
D
Amphibians

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Solutions
Birds

Question 1/30

Sun flower

Lotus

Glory Lily

Rafflesia

Question 2/30

Crossing over

Mutation

Non-disjunction

Mitosis

Question 3/30

Dichogamy

Herkogamy

Heterogamy

Monogamy

Question 4/30

increases slightly

decreases slightly

remains exactly the same

None of the above

Question 5/30

Primary mycelium

Fungal hyphae

Basidiocarp

Basidiospores

Question 6/30

well developed pith

radially arranged vascular bundles

scattered vascular bundles

open vascular bundles

Question 7/30

White blood cells

Blood platelets

Blood Plasma

Red blood cells

Question 8/30

photorespiration

photolysis

light and oxygen induced breakdown

All of the above

Question 9/30

Tempering of iron

Bending of iron

Rusting of iron

Melting of iron

Question 10/30

anthophyta

bryophyta

pterophyta

None of these

Question 11/30

cow

sheep

man

potato

Question 12/30

4

36

2

38

Question 13/30

Calcium

Sodium

cAMP

cGMP

Question 14/30

carbohydrates

vitamins

proteins

fats

Question 15/30

Latin

Greek

English

French

Question 16/30

Dolly

jolly

Lakes

Rivers