Biology, asked by udayukirde99, 9 months ago

(1)

1. Which of the following dyes is best suited for staining

chromosomes ?

a) Basic fuchsin b) Safranin

c) Methylene blue d) Carmine

2. In chloroplasts, chlorophyll is persent in the

a) Outer membrane b) Inner membranae

c) Thylakoids d) Stroma

3. Ribosomes are made up of

a) Fat and protein b) Protein and RNA

c) Lipid and Protein d) Protein and DNA

4. Schleiden (1838) proposed that cell is the structural and

functional unit of life. His idea was a

a) Hypothesis b) Assumption

c) Generalisation d) Observation

5. Organelles which are regarded as ‘power house’ of

the cell and in which the oxidative reactions of the

respiratory process take place are

a) Chloroplast b) Ribosomes

c) mitochondria d) Endoplasmic reticulum

6. Stroma is the ground substance of

a) Endoplasmic reticulum

b) Nucleus

c) Chloroplast

d) Mitochondria

7. In plant cell, vacuole contains

a) Water and dissolved substances

b) Only air

c) Water

d) Cytoplasm

8. Plasma protein performs

a) Nutritive functions b) Transport function

c) Physiochemical function d) All the above

9. Which cell organelle is present in both prokaryotic and

eukaryotic cell

a) Ribosome b) Nucleus

c) Mitochondrium d) E.R.

10. Middle lamella mainly contains

a) Calcium b) Manganese

c) Sodium d) potassium

11. Which of the following cell organelles are called suicide

bags ?

a) Lysosomes b) Mitochondria

c) Ribosomes d) Perioxisomes

12. Plasma membrane helps in

a) Transportation of only water in and out of cell

b) Protein synthesis

c) Osmoregulation

d) Nucleic acid synthesis

13. Which of the following controls permeability ?

a) cell membrane b) Cell wall

c) protoplasm d) cytoplasm

14. The surface of endoplasmic reticulum (ER) is covered

with

a) Ribosomes b) DNA

c) Glucose d) RNA

15. Organelle important in spindle formation during nuclear

division is

a) Golgi body b) Chloroplast

c) Centriole d) Mitochondrion

16. What is common between chloroplasts, chromoplasts

and leucoplast

a) Presence of pigments

b) Possession of thylakoids and grana

c) Storage of starch, protein and lipids

d) Ability to multiply by a fission like process

17. Liquid food drinking is

a) Pinocytosis b) Phagocytosis

c) Imbibition d) None of the above

18. In cilia, the arrangement of microtubules is

a) 9 + 9 b) 9 + 4

c) 9 + 3 d) 9 + 2

19. Bacterial ribosome is

a) 50 S b) 60 s

c) 70 s d) 80 S

20. Branch dealing with study of cell is

a) Histology b) Cytology

c) Morphology d) Anatomy

21. Absorption of diffusible ions by cells against

concentration gradient is called

a) Passive absorption b) Active absorption

c) Osmosis d) Donnan equilibrium

22. The cell wall of bacterium is made up of

a) Cellulose b) Hemicellulose

c) Lignin d) Peptidoglycan

23. Which of these is matched ?

a) Amyloplasts – store proteins granules

b) Elaioplasts – store oils or fats

c) Chloroplasts contain chlorophyll pigments

d) chromoplasts – contain coloured pigments other

than chlorophyll

24. Which one of the function of nucleolus ?

a) DNA replication

b) Ribosome synthesis

c) Organisation of chromosomes

d) Chromatid separation.​

Answers

Answered by Rose2006
1

Answer:

This is unfair to give less points for these many questions if u give more points then u can ask many questions to answer

Answered by safnahakkim
4

Answer: 1 option c

2  option c

3 option b

4 option a

5 option c

6 option c

7 option a

8 option d

9  option a

10 option a

11 option a

12 option a

13 option  a

14 option a

15 option c

16 option a

17 option a

18 option d

19 option c

20 option b

21 option b

22 option  d

23 option b,c,d

24 option b

Explanation: hope it helps

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