General Revision. First question Choose the correct answer from each of the following.

General Revision General Revision

First questionFirst question

Choose the correct answer from

each of the following

1 - These organs produce sex hormonesexcept…………

. aTestis .

. bpituitary gland .

. cPancreas .

dOvary . .

c . Pancreas

1 -These organs produce sex hormones except…………

a . Testis.

b . pituitary gland.

c . Pancreas.

d . Ovary.

c . Pancreas

2 - The existence of acontinuous water column is dueto the:

. aAdhesive force . . bCohesive force .

. cImbibition . . dTranspiration pull b . Cohesive force.

2 - The existence of a continuous water column is due to the:

a . Adhesive force. b . Cohesive force.

c . Imbibition. d . Transpiration pull b . Cohesive force.

3 -The blood supply of the brain

cells leaves the heart from the……………

. aright auricle .

. bleft auricle .

. Cright ventricle

. dleft ventricle

d . left ventricle

3 -The blood supply of the brain

cells leaves the heart from the ……………

a . right auricle.

b . left auricle.

C . right ventricle

d . left ventricle

d . left ventricle

4- Products resulted from photosynthesis that are needed for starting aerobic respiration are ……..

a . carbohydrates and oxygen .

b . carbohydrates and water

c . NADP and hydrogen

d . ATP and water

a . carbohydrates and oxygen.a . carbohydrates and oxygen.

5 – Which one of the following would occur as a response to fear or stress?

a. Adrenaline production decreases

b. Blood flow to skin increases

c. Blood glucose level increases

d. Pancreas secretes more insulin

c. Blood glucose level increasesc. Blood glucose level increases

5 – Which one of the following would occur as a response to fear or stress?

a. Adrenaline production decreases

b. Blood flow to skin increases

c. Blood glucose level increases

d. Pancreas secretes more insulin

c. Blood glucose level increasesc. Blood glucose level increases

6 - The axon of a never cell is surrounded by myelin sheath, which is made up of :

a. Starch secreted by schwann cells

b. Fats secreted by neuroplasm

c. Proteins secreted by neurolemma

d. Lipid secreted by schwann cells .

6 - The axon of a never cell is surrounded by myelin sheath, which is made up of :

a. Starch secreted by schwann cells

b. Fats secreted by neuroplasm

c. Proteins secreted by neurolemma

d. Lipid secreted by schwann cells .

b. Fats secretedb. Fats secreted

by neuroplasmby neuroplasm

7 – The thalmms..……… .alies below the medulla oblongata

in the brain stem .bcontrols homestasis

.cdirects sensory information to the proper regions of the brain

.d is important in maintaining balance

c. directs sensory informationc. directs sensory information to tothe proper regions of brainthe proper regions of brain

7 – The thalmms..……… a. lies below the medulla oblongata

in the brain stem b. controls homestasis

c. directs sensory information to the proper regions of the brain

d. is important in maintaining balance

c. directs sensory informationc. directs sensory information to to the proper regions of brainthe proper regions of brain

8 - When a neuron is at restingpotential, the membrane has..……

.aits outside negative charged. b. its both sides equally charged

c. its inside negative charged d. the polarity across the membrane is

reversed.

c. its inside negative charged

8 - When a neuron is at resting potential, the membrane has..……

a. its outside negative charged. b. its both sides equally charged

c. its inside negative charged d. the polarity across the membrane is

reversed.

c. its inside negative charged

- The figure represents the

nerve fiber membrane at rest

- The potential difference equals

- 70 milivolt

- polarized

membrane

- The figure represents the

nerve fiber membrane at rest

- The potential difference equals

- 70 milivolt

- polarized

membrane

9 – The glucose level in the human blood is under the influence of …..

a. Insulin produced in the liver.

b. Glucagon produced in the kidney.

c. Insulin produced in the kidney.

d. Both Insulin and glucagon.

d. Both Insulin and glucagon

9 – The glucose level in the human blood is under the influence of …..

a. Insulin produced in the liver.

b. Glucagon produced in the kidney.

c. Insulin produced in the kidney.

d. Both Insulin and glucagon.

d. Both Insulin and glucagon

10 – The muscle fatigue is a result of..……

)a The conversion of glucose into lactic.acid

)b The inability of the blood to supply the muscle rapidly with oxygen needed for.energy production

)c .The conversion of lactic acid into glucose

)d . The repeated contraction of the muscle

)e .The conversion of glucose into lactic acid

10 – The muscle fatigue is a result of..……

a) The conversion of glucose into lactic acid.

b) The inability of the blood to supply the muscle rapidly with oxygen needed for energy production.

c) The conversion of lactic acid into glucose.

d) The repeated contraction of the muscle .

e) The conversion of glucose into lactic acid.

Second questionSecond question

• Write the scientific termsWrite the scientific terms

The movement of molecules or ions from a high concentrated

medium to a lower concentrated one.

Diffusion phenomenon

A layer in the walls of arteries consists of one row of epithelial cells .

Endothelium.

A layer in the walls of arteries consists of one row of epithelial cells .

Endothelium.

A phenomenon that appears when

we cut the stem near to the soil level, where you can see the flow of water

from the stem

Exudation

A phenomenon that appears when

we cut the stem near to the soil level, where you can see the flow of water

from the stem

Exudation

The site between the terminal branches “Arborization” of the axon of one neuron and

dendrites of the next neuron

synapse

The site between the terminal branches “Arborization” of the axon of one neuron and

dendrites of the next neuron

synapse

A hormone plays an important

role in Mineral metabolism

and balance in the body

Aldosteron

A hormone plays an important

role in Mineral metabolism

and balance in the body

Aldosteron

The functional unit of

skeletal muscle .

motor unit

The functional unit of

skeletal muscle .

motor unit

A part of the nervous system which controls the main involuntary action in the human body.

Autonomic nervous system

A part of the nervous system which controls the main involuntary action in the human body.

Autonomic nervous system

The small circular DNA in bacteria

plasmid

The small circular DNA in bacteria

plasmid

An “X” chromosome which is solid, compact, and able to

be stained during interphase stage.

Barr body

An “X” chromosome which is solid, compact, and able to

be stained during interphase stage.

Barr body

A small round bone found

in knee Joint.

patella or knee cap

A small round bone found

in knee Joint.

patella or knee cap

A coiled tube ends with a duct that opens in the skin surface of the human body through a pore.

sweat gland

A coiled tube ends with a duct that opens in the skin surface of the human body through a pore.

sweat gland

Third goup

Correct theunderlined

words

Third goup

Correct theunderlined

words

The plant loses more than

90 % of lost water through

Guttation

The answer is

stomatal

transpiration

The plant loses more than

90 % of lost water through

Guttation

The answer is

stomatal

transpiration

The posterior part of the two cerebral hemispheres has centers of memory.

• The answer the anterior part

The posterior part of the two cerebral hemispheres has centers of memory.

• The answer the anterior part

The chromosomal structure ( 44 + xy ) for an individual male having mental retadation

The answer is :

Normal

The chromosomal structure ( 44 + xy ) for an individual male having mental retadation

The answer is :

Normal

The degree of annealing

between any two nucleotide

strands “ hybrid “ can be

measured by the number of linked nucleotides between the two strands

The degree of annealing

between any two nucleotide

strands “ hybrid “ can be

measured by the number of linked nucleotides between the two strands

The answer is:

- the amount of heat

required to separate them

again .

The answer is:

- the amount of heat

required to separate them

again .

The female organs in ferns is known as Antheridia

The answer is :

Archegonia

The female organs in ferns is known as Antheridia

The answer is :

Archegonia

The wall of endodermal cells are characterized by the presence of a ribbon made up of lignin

The answer is

subrin

The wall of endodermal cells are characterized by the presence of a ribbon made up of lignin

The answer is

subrin

The scientist Rapden managed by using “Aphid” insect to describe the contents of the sieve tubes

The answer is

Mittler

The scientist Rapden managed by using “Aphid” insect to describe the contents of the sieve tubes

The answer is

Mittler

Identical twins result from the fertilization of two ova by two sperms.

The answer is :

one ovum by a single sperm

Identical twins result from the fertilization of two ova by two sperms.

The answer is :

one ovum by a single sperm

The endThe end