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Biology 1525 MCQs [All-Courses]

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Biology covers key concepts of life, organisms, and human systems with exam-focused notes for PPSC, FPSC, KPPSC, BPSC.,NTS, OTS, AJKPSC. Clear, concise topics help students prepare effectively for competitive tests.

All Topics  1525

Percentage of CO2 carried as carboxyhaemoglobin is_________?
A 5%
B 70%
C 20%
D 10%
Correct Answer: 20%
The diffusion of ions along with water also takes place by mass flow system along the ________ path?
A Tonoplast
B Apoplast
C Symplast
D Vacuolar
Correct Answer: Apoplast
The membrane of vacuoles is known as__________?
A Vacuoloplast
B Tonoplast
C Tanoplast
D All of these
Correct Answer: Tonoplast
The uptake of water in plants involves__________?
A Active transport
B Passive transport
C Both of these
D None of these
Correct Answer: Passive transport
The site/s where most of the uptake of water and minerals take place is/are__________?
A Root hairs
B Root cells
C Underground stem
D All of these
Correct Answer: Root hairs
There are __________ types of nutrients needed by plants besides light to carry out photosynthesis
A Two
B Three
C Four
D Five
Correct Answer: Three
Which of the following bones are present in pectoral girdle?
A Clavicle
B Scapula
C Both of these
D None of these
Correct Answer: Both of these
How many vertebrae are present in lumbar region?
A 7
B 12
C 5
D 4
Correct Answer: 5
S-band locomotion is characteristically seen in___________?
A Bony fish
B Cartilaginous fish.
C Fish like mammals.
D All fishes.
Correct Answer: Cartilaginous fish.
Which of the following is the swiftest form of the locomotion?
A Plantigrade
B Digitigrade
C Unguligrade
D Hopping
Correct Answer: Unguligrade

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