EASY
10th CBSE
IMPORTANT
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What prevents the backflow of blood inside the heart during contraction?

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Important Questions on Life Processes

MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 1 - Life Processes>EXERCISE>Q 19

Single circulation i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by

MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 1 - Life Processes>EXERCISE>Q 20
In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 1 - Life Processes>EXERCISE>Q 21
Choose the correct statement that describes arteries.
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 1 - Life Processes>EXERCISE>Q 22
The filtration units of kidneys are called
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 1 - Life Processes>EXERCISE>Q 23
The source of oxygen (O2) which is liberated during the process of photosynthesis by green plants comes from splitting of water (H2O).
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 1 - Life Processes>EXERCISE>Q 24
The blood leaving the tissues becomes richer in
HARD
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 1 - Life Processes>EXERCISE>Q 25
Which of the following is an incorrect statement?
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE BIOLOGY For Class X>Chapter 1 - Life Processes>EXERCISE>Q 26
The internal (cellular) energy reserve in autotrophs is