ACME ACADEMYWEEKLY EVALUATION TESTSubject: Science
Time Limit: 20 Mins
Max Marks: 20 Marks
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Student Name:
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Class / Sec:
Date:
GENERAL INSTRUCTIONS:
1.
Which tissue is actively dividing and primarily responsible for the continuous increase in the length of a plant's roots and shoots?
[1 Mark]
2.
What is the fundamental definition of a 'tissue' in a multicellular organism?
[1 Mark]
3.
Which animal tissue connects muscles to bones, enabling the movement of body parts?
[1 Mark]
4.
Which specific type of muscle tissue is found ONLY in the heart and works tirelessly without conscious control?
[1 Mark]
5.
Which component of the complex xylem tissue is the ONLY one composed of living cells?
[1 Mark]
6.
Why do meristematic cells in plants typically lack large vacuoles?
[1 Mark]
7.
What is the structural difference that makes bones hard and cartilage flexible?
[1 Mark]
8.
Which simple permanent plant tissue is characterised by living cells with unevenly thickened corners, providing flexibility to bending stems and tendrils?
[1 Mark]
9.
In the phloem, what is the specific role of companion cells?
[1 Mark]
10.
The inner lining of the small intestine features a single layer of tall, pillar-like cells to maximise nutrient uptake. Which epithelial tissue does this describe?
[1 Mark]
11.
What is the biological process called where actively dividing meristematic cells lose their ability to divide and take up a permanent shape, size, and function?
[1 Mark]
12.
What specific type of joint connects the skull to the backbone, allowing the head to turn side-to-side like a doorknob?
[1 Mark]
13.
Assertion (A): If you get a small cut, blood oozes out but eventually forms a clot. Reason (R): Blood is a connective tissue that contains platelets responsible for clotting at injury sites.
[1 Mark]
14.
In an experiment, the tip of a growing onion root is snipped off by 1 cm. What is the immediate consequence for the root?
[1 Mark]
15.
Which specialised animal cell consists of a cell body, receiving dendrites, and a long transmitting axon?
[1 Mark]
16.
When grass is grazed by animals or mowed down, it manages to grow back shortly after. Which specific plant tissue is responsible for this regrowth from the nodes?
[1 Mark]
17.
A runner twists their knee severely and a doctor diagnoses that the tissue connecting their thigh bone to their shin bone has been overstretched. Which specific connective tissue is damaged?
[1 Mark]
18.
If a botanist observes the annual growth rings on the stump of a cut tree, what does the presence of alternating wide and narrow rings primarily indicate?
[1 Mark]
19.
F.C. Steward successfully grew a complete carrot plant starting from a single mature phloem cell. For a permanent cell to do this, it must first regain the ability to divide. What is this called?
[1 Mark]
20.
In forests, elephants sometimes strip away the bark of trees to eat it. If a tree's trunk is completely debarked in a full ring all the way around, the tree will eventually die. Why?
[1 Mark]
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