Internal Structure of Plants and Animals
Biology · 50 practice questions
Internal structure of a flowering plant — root, stem, leaf; internal structure of a mammal.
- Identify the transverse sections of these organs and relate their structure to function.
- Identify supporting tissues in plants (collenchyma, sclerenchyma, xylem, phloem fibres) and describe their distribution in root, stem and leaf.
- Examine the arrangement, appearance and position of mammalian digestive, reproductive and excretory organs.
Try a few questions
- Practice question 1
In a monocotyledonous stem, examined in transverse section, the vascular bundles specifically are
- A.completely absent, despite the stem clearly needing to transport materials
- B.arranged in a single, distinct ring, identical to a dicotyledonous stem
- C.a factor entirely unrelated to the arrangement of vascular bundles
- D.scattered throughout the stem, rather than arranged in a distinct ring
Show the answer
D. scattered throughout the stem, rather than arranged in a distinct ring
In a monocotyledonous stem, the vascular bundles are specifically scattered throughout, rather than arranged in a ring.
- Practice question 2
Gastric glands, found within the lining of the mammalian stomach, specifically secrete substances that help
- A.transport digested food directly into the bloodstream
- B.digest food, including acid and digestive enzymes
- C.a factor entirely unrelated to the digestion of food of any kind
- D.store bile produced by the liver, a function instead of the gall bladder
Show the answer
B. digest food, including acid and digestive enzymes
Gastric glands, found within the lining of the stomach, specifically secrete substances including acid and digestive enzymes.
- Practice question 3
The epidermis of a leaf specifically functions mainly to
- A.transport manufactured food substances throughout the entire plant
- B.protect the inner tissues and reduce water loss
- C.carry out the majority of the leaf's own photosynthesis
- D.a factor entirely unrelated to protection or water loss of any kind
Show the answer
B. protect the inner tissues and reduce water loss
The epidermis of a leaf specifically functions mainly to protect the inner tissues and reduce water loss.
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