Biology For Class IX - Chapter No.9 - Transport - MCQs and Fill In the Blanks

GO TO INDEX
CHAPTER 9
TRANSPORT

Multiple Choice Qustions (MCQs)

(i) The movement of organic materials (food) take place through:
(a) Xylem
(b) Vessels
(c) Tracheid
(d) Phloem ✔

(ii) What regulates the flow of water through the xylem?
(a) Passive transport by the endodermis
(b) The number of companion cells in the phloem
(c) The evaporation of water from the leaves ✔
(d) Active transport by sieve-tube membrane

(iii) Phloem transport of sucrose can be described as going from “source to sink” which of the following would not normally function as a sink?
(a) Mature leaf ✔
(b) Storage organ
(c) Growing root
(d) Both 'b' and 'c'

(iv) Human plasma proteins include which of the following?
(I) Fibrinogen  (II) Haemoglobin   (III) Albumin
(a) I only
(b) II only
(c) I and II
(d) I and III ✔

(v) Which of these are involved in the clotting of blood?
(a) Platelets ✔
(b) Haemoglobin
(c) Albumin
(d) Globulin

(vi) In human heart blood returning from lungs first drains into the:
(a) Left atrium ✔
(b) Left ventricle
(c) Right atrium
(d) Right ventricle

(vii) Root hairs are most important to a plant because they:
(a) Store starch
(b) Contain xylem tissues
(c) Provide a habitat for nitrogen fixing bacteria
(d) Increase the surface area for absorption ✔

(viii) A type of circulatory system blood flow through the spaces among tissues called.\:
(I) Open type circulatory system   (II) Close type circulatory system   (III) Pulmonary circulatory system
(a) I only ✔
(b) II only
(c) I and II
(d) II and III

(ix) Part of root between epidermis and endodermis called:
(a) Xylem
(b) Root hair
(c) Phloem
(d) Cortex ✔

(x) Movement of water molecules from the area of higher water potential to the area of lower water potential called:
(a) Diffusion
(b) Osmosis ✔
(c) Active transport
(d) Water potential

2. Fill in the blanks:
(i) Loss of internal water of plant in the form of vapours from aerial parts of plants is called transpiration.
(ii) In flowering plants xylem is made up of four types of tissues.
(iii) Root hair is long, thin and tubular structure, it increases surface area which increases the rate of absorption of water.
(iv) Opening and closing of stomata is also regulated by guard cells.
(v) A type of cancer that affects the blood, bone marrow and lymphatic system called leukemia.
(vi) Pumping of blood by the rhythmic pulsation of heart throughout the body is called heart beat.
(vii) Relaxation of heart muscles and allowing the chambers to fill with blood called diastole.
(viii) Dead cells of xylem vessels arranged vertically have empty space inside called lumen.
(ix) Colourless, irregular in shape, nucleated and larger sized cell than R.B.Cs called leucocytes or WBC.
(x) Inherited condition that affects the blood hemoglobin called Thalassemia.