Frequently used root words in biology - 3 (Positions)

FREQUENTLY USED ROOT WORDS RELATED TO POSITION

Learning root words and their meaning help you to understand and remember biology terms very easily. Given below is the table showing frequently used root words related to Position. Try to memorize them and practice the problems below.

Root words	Meaning
1.          acro-	tip
2.          ana-	up, upward
3.          cata-:	down, downward
4.          ecto-, exo-	outer
5.          endo-	inner
6.          extra-	outer
7.          hyper-	above, increase
8.          hypo-	below, decrease
9.          infra-	below
10.     inter-	between
11.     intra-	inside
12.     meso-	middle
13.     para-	near, alongside, resembling, beyond, abnormal
14.     peri-	surrounding, all around
15.     pre-, pro-	first, before
16.     supra-	above
17.     tele-	to or at a distance
18.     ultra-	beyond

Practice yourself

Choose the correct option:

1. The structure present at the tip of sperm is called

A. Lysosome
B. Acrosome
C. Ribosome
D. Nucleosome

2. The abnormal increase in thyroid hormones is termed as

A. Hyperthyroidism
B. Hypothyroidism
C. Hyperparathyroidism
D. Hypoparathyroidism

3. The germinal layer present in between the outer and inner layers of the embryo is called

A. Ectoderm
B. Endoderm
C. Mesoderm
D. Epidermis

4. The digestion of food occurring inside the cells is called

A. Extracellular digestion
B. Intracellular digestion
C. Intercellular digestion
D. Pericellular digestion

5. The instrument used to observe the organs inside the body is

A. Microscope

B. Periscope

C. Telescope

D. Endoscope

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