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Bio Revision Sem 2 Set 2

Total questions: 40

Worksheet time: 40mins

Name
Class
Date
1.
Which of the following characteristics correctly describes sponges?
a)
They have no tissues, no organs, and no symmetry
b)
They have tissues
c)
They have organs
d)
They have symmetry
2.
These are small, muscular fluid-filled tubes ending in cup-like structures unique to echinoderms. 
a)
Muscular foot
b)
Tube feet
c)
Water-vascular feet
d)
Suction cups
3.

What phyla contains animals that have exoskeletons, a brain, jointed appendages and earthworms

a)

Invertebrates

b)

Mollusca

c)

Anthropoda

d)

Annelida

4.

State the class for the organism shown above.

a)

Anthozoa

b)

Hydrozoa

c)

Scyphozoa

d)

Rhizopora

5.

Cell wall of plant cell is composed of cellulose but cell wall of Fungi is composed

a)

cellulose

b)

peptidoglycan

c)

polysaccharides and protein

d)

chitin

6.

Name the phylum of fungi based on the spore bearing structure from these picture.

a)

Ascomycite

b)

Ascomyceta

c)

Ascomycota

d)

Ascomycito

7.

Taenia sp. is example for phylum .....

a)

Nematoda

b)

Annelida

c)

Platyhelminthes

d)

Echinodermata

8.

What type of symmetry is shown in the image?

a)

asymmetry

b)

bilateral

c)

radial

d)

none of these

9.

Which term describes an organism found at the bottom of the food chain?

a)

consumer

b)

predator

c)

decomposer

d)

producer

10.

What are the lake zonation based on light penetration?

a)

Littoral Zone

b)

Photic Zone

c)

Basal Zone

d)

Limnetic Zone

11.
Bacteria which convert nitrogen gas into bio-available forms of nitrogen, such as ammonia and nitrate, are known as _____
a)
De-nitrification bacteria 
b)
Nitrogen fixing bacteria
c)
Oxidizers
d)
Buffers
12.

Which type of population growth occurs under ideal conditions with unlimited resources?

a)

Economic Growth

b)

Exponential Growth

c)

Logistic Growth

d)

Linear Growth

13.

Which is the statement below describe the image above?

a)

hybrid breakdown

b)

convergent evolution.

c)

adaptive radiation.

d)

allopatric speciation

14.
The diagram shows a random change in the population which is:
a)
Gene flow
b)
Gene pool
c)
Genetic drift
d)
Natural selection
15.

How do enzymes speed up chemical reaction?

a)

Increasing activation energy

b)

Decreasing activation energy

c)

Increasing deactivation energy

d)

Decreasing deactivation energy

16.

Based on the diagram, name structure B.

a)

active site

b)

enzyme

c)

substrate

d)

products

17.

How many FADH2 molecules are produced by 1 molecule of glucose?

a)

1

b)

2

c)

3

d)

4

18.
Which statement best describes the link reaction?
a)
Pyruvate is carboxylated; acetyl co-A is formed, reducing NAD+
b)
Pyruvate is decarboxylated; acetyl co-A is formed, oxidizing NADH
c)
Pyruvate reacts with co-A, oxidizing NADH
d)
Pyruvate is decarboxylated; acetyl co-A is formed, reducing NAD+
19.
At the end of the Kreb's cycle, where is most of the energy from the original glucose stored?
a)
in CO2
b)
in ATP
c)
in NADH
d)
in pyruvate
20.
What are the stages of cellular respiration in order?
a)
glycolysis, oxidative phosphorylation, the citric acid cycle
b)
oxidative phosphorylation, glycolysis, the citric acid cycle
c)
glycolysis, the citric acid cycle, oxidative phosphorylation
d)
the citric acid cycle, oxidative phosphorylation, glycolysis
21.

The enzyme responsible for carbon fixation in C3 photosynthesis is

a)

RuBisCo

b)

PEP Carboxylase

c)

Hexokinase

d)

Pyruvate Dehydrogenase

22.

The main advantage of C4 carbon fixation is the ability to avoid.....

a)

Transpiration

b)

Photorespiration

c)

Photosynthesis

d)

Signal Transduction

23.

Most of the carbon dioxide produced by the body tissue is transported to the lungs in the form of …

a)

Carbonic acid.

b)

Blood plasma.

c)

Bicarbonate ion.

d)

Carbaminohaemoglobin.

24.

When chemoreceptors detect a slight decrease in pH, this means that _______________ concentrations have increased, and the breathing rate must ________________ .

a)

Carbon dioxide; increase.

b)

Carbon dioxide; decrease.

c)

Oxygen; increase.

d)

Oxygen; decrease.

25.

Which of the following is a result of transpiration?

a)

Bacteria and viruses are destroyed.

b)

Water flows from roots to shoots.

c)

Minerals and nutrients leave plants.

d)

Plants attract pollinators.

26.

During ventricular systole

a)

only the AV valves open

b)

the semi lunar valves open and the AV valves close

c)

only the semi lunar valves close

d)

the semi lunar valves close and the AV valves open

27.

Apoplast pathway is located

a)

Outside the plasma membrane

b)

In the entire cytosol

c)

On both sides of plasma membrane

d)

In the plasticity content

28.

Which of the following concept explained the process of translocation?

a)

Transpirational pull

b)

Pressure flow hypothesis

c)

Root pressure

d)

Cohesion and adhesion

29.

Negative Feedback

a)

a deviation from the norm brings the body back to homeostasis

b)

a regulatory substance transported in the blood to target cells

c)

a deviation from the norm is enhanced until an event occurs

d)

a chemical substance released by nerves

30.

The long dip in the renal tubule, that looks like a hairpin turn, is called the:

a)

loop of Henle

b)

loop of Rachic

c)

loop of Henry

d)

loop of Harry

31.

The blood in the vena cava is...

a)

oxygenated, returning to the heart

b)

deoxygenated, returning to the heart

c)

oxygenated, leaving the heart

d)

deoxygenated, leaving the heart

32.

Special lymphatic vessels that absorb fats and transport them from the digestive tract to the blood are called ____.

a)

peyer"s patch

b)

vili

c)

trabeculae

d)

lacteals

33.

Filtration occurs in which area of the nephron?

a)

Glomerulus/Bowman's capsule

b)

Proximal convulated tubule

c)

Loop of Henle

d)

Collecting duct

34.
When a neuron is depolarized, what are the first channels to open?
a)
Sodium
b)
Potassium
c)
Calcium
d)
ACTH
35.

What number on the graph represents the depolarization phase?

a)

1

b)

2

c)

3

d)

4

36.

A junction at which a neuron meets another cell

a)

axon

b)

dendrites

c)

myelin sheath

d)

synapse

37.

Part A of the sarcomere refers to...........

a)

Z Line

b)

M Line

c)

H Line

d)

A Line

38.

The neurotransmitter stored in the axon terminal identified as shown in the diagram is........

a)

Acetylcholine

b)

Dopamine

c)

Calcium Ion (Ca2+)

d)

Syaptic Cleft

39.

Which cells produce antibodies?

a)

Helper T cells

b)

Cytotoxic T cells

c)

Memory cells

d)

Plasma cells

40.

Which of the following are associated with the cell-mediated response?

a)

B cells

b)

Plasma cells

c)

Antibodies

d)

Cytotoxic T cells

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