Transportation in Plants And Animals Test

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Transportation in Plants And Animals Test - 4

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Question 1
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Which of the following materials can be transported through xylem vessels?

1. Water
2. Glucose
3. Starch
4. Sodium
5. Nitrogen

A
1, 2 and 3

B
2, 4 and 5

C
1, 4 and 5

D
2, 3 and 5

Solution

Xylem is responsible for conduction of water and minerals. Hence, water, sodium and nitrogen will be transported.
Question 2
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The figure given below shows a tree stem at the start of an experiment (X) and after a few days (Y). In the experiment, phloem tissue was removed from the girdled part. The change observed in Y occurs due to

A
upward movement of food and blockage of organic matter

B
downward movement of food and blockage of organic matter

C
upward movement of water and blockage of minerals

D
downward movement of water and blockage of minerals

Solution

Phloem is responsible for the conduction of food in plants. After girdling, the food and organic matter cannot be transported. These collect in the region above the girdled tissue. Hence, swelling is observed.
Question 3
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Bidirectional translocation of food takes place through

A
xylem

B
phloem

C
parenchyma

D
cambium

Solution

Bidirectional translocation of food takes place through phloem.
Question 4
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The given bar graph shows the concentration of oxygen in blood samples taken from four different arteries from four volunteers during an experiment. Which sample was taken from the pulmonary vein?

A
P

B
Q

C
R

D
S

Solution

Pulmonary veins collect pure blood from the heart. This blood contains highest concentration of oxygen. Hence, sample R is taken from the pulmonary vein.
Question 5
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Which of the following statements is/are true about the left auricle?

A
It contains deoxygenated blood.

B
It collects blood from the lungs.

C
The blood in it moves to the left ventricle.

D
All of these

Solution

From the lungs, blood is collected by the pulmonary veins. These veins then deliver the blood to the left auricle. From the left auricle, blood enters the right ventricle.
Question 6
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The cells shown in the figure below are found in blood. Which of the following statements is/are correct regarding these cells?

(i) Absence of nucleus is the characteristic feature of the cells shown.
(ii) They help the body fight infections.
(iii) They help in healing of wounds.
(iv) They help transport oxygen and carbon dioxide.

A
(ii) only

B
(i) and (ii) only

C
(i), (ii) and (iii) only

D
(i), (iii) and (iv) only

Solution

The figure shows white blood cells. These are the cells that help fight infections.
Question 7
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Which part of blood carries/carry minerals, vitamins, sugar and other foods to the body cells?

A
Plasma

B
Platelets

C
RBCs

D
WBCs

Solution

The liquid portion of blood is called plasma. It carries minerals, vitamins, sugar and other foods to the body cells.
Question 8
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If red-coloured vessels represent arteries, then _____ vessels represent veins.

A
green-coloured

B
blue-coloured

C
purple-coloured

D
white-coloured

Solution

Arteries are red in colour as they carry oxygenated blood. Veins are generally blue in colour as they carry deoxygenated blood.
Question 9
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Observe the above figure of blood circulation and choose the correct statement among the following.

A
B has a rigid wall.

B
A is rich in oxygenated blood.

C
C has valves to prevent backflow.

D
D allows blood to flow in both directions.

Solution

A brings blood from lungs to the heart; thus, A is pulmonary vein. Pulmonary vein is rich in oxygenated blood.
Question 10
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Consider the following sentences (A) and (B), and choose the correct option accordingly.

A: All veins bring blood to the heart.
B: All veins contain deoxygenated blood.

A
Both sentences A and B are true.

B
Both sentences A and B are false.

C
A is true, but B is false.

D
A is false, but B is true.

Solution

A is true, but B is false. All veins bring blood to the heart. All veins except pulmonary veins contain deoxygenated blood. Pulmonary veins contain oxygenated blood.
Question 11
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Directions For Questions

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In the figure shown above, the functions and characteristics of a physiological process X (in plants) have been shown.

Which of the following sentence is true about X?

A
X takes place through hydathodes.

B
X is important for photosynthesis.

C
X is carried out by xylem.

D
X involves pores on leaves called stomata.

Solution

X cools down plant, generates suction pull and involves evaporation of water; thus, X is the process of transpiration. Transpiration is carried out through small pores on leaves called stomata.
Question 12
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Directions For Questions

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Refer to the above diagram of excretory system and choose the incorrect statement from among the following:

A
B is made up of muscles.

B
A contains only harmful substances from the body.

C
C performs the function of storage.

D
D is used for urination.

Solution

A is kidney, and kidney contains both useful and harmful substances. Most useful substances are retained, whereas harmful substances are passed out in urine.
B is ureter; it is made up of muscles.
C is urinary bladder; it functions in storage of urine.
D is urethra. Urine is passed out through urethra.
Question 13
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The given bar graph shows the heartbeats of a person during different types of activity. Which bar shows the sleeping stage of the person?

A
A

B
B

C
C

D
Nil

Solution

Bar B exhibits a stage when the person has minimum heartbeats. This bar is probably obtained when the person is sleeping.
Question 14
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Read the following statements and select the correct option accordingly.

Statement 1: Plants absorb water and minerals by the roots.
Statement 2: The outer wall of roots have numerous projections called root hair.

A
Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.

B
Both statements 1 and 2 are true, but statement 2 is not the correct explanation of statement 1.

C
Statement 1 is true and statement 2 is false.

D
Both statements 1 and 2 are false.

Solution

Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. The root hair increase the surface area of the root for the absorption of water and mineral nutrients dissolved in water.
Question 15
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The average pulse rate (heart beat) for a person at rest is

A
90 - 100 per minute

B
80 - 90 per minute

C
80 - 120 per minute

D
72 - 80 per minute

Solution

The average pulse rate for a person at rest is usually 72-80 beats per minute.
Question 16
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Choose the correct alternative from the following:

Assertion (A): Arteries have thick elastic walls
Reason (R): They carry blood from all parts of the body back to the heart with high pressure

A
Both A and R are true and R is the correct explanation of A.

B
Both A and R are true but R is NOT the correct explanation of A.

C
A is true but R is false.

D
A is false but R is true.

Solution

A is true but R is false. Arteries carry oxygen rich blood from heart to all parts of the body.
Question 17
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Khushi got wounded in an accident. The bleeding from the wound continued for a long time. The doctors found that she was short of

A
Hemoglobin

B
WBC

C
Plasma

D
Platelets

Solution

Platelets perform the function of clot formation. As Khushi continued to bleed, clot formation did not take place. Thus, the doctors found that she was short of platelets.
Question 18
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Directions For Questions

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The plant in the figure shows a condition which may be due to blocking or removal of

A
Phloem

B
Xylem

C
Cambium

D
Both xylem and phloem

Solution

The plant in the figure shows loss of rigidity i.e. wilting. Blocking of Xylem vessels would cause wilting of plants because Xylem is the vascular tissue for the transport of water and nutrients in the plant.
Question 19
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Which of the following is paired incorrectly?

A
Root hair- Increase in surface area

B
Vascular tissues- Xylem and phloem

C
Transpiration- Method of transportation

D
Osmosis- Water transportation between cells

Solution

Transpiration is a method in which plant gives out water, so it can be called a method of excretion in plants.
Question 20
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Pulse beat can be felt in areas where arteries are present superficially. In which of the following areas arteries may be present superficially?

A
Wrist and neck

B
Palm and knee

C
Abdomen and wrist

D
Shoulder and wrist

Solution

Wrist is the best place to check the pulse, since the artery runs close to the skin and the bones create a firm place to feel the heart rate. Neck is the location of the artery sending blood from the heart to the head and brain. Thus, pulse rate can be felt here too as arteries are running superficially.