brodidit for students
خلوی حیاتیات
گیارہویں جماعت · حیاتیات · 6 سوالات
نام: ____________________ تاریخ: ____________
The fluid mosaic model describes the structure of the:
- A Cell wall
- B Cell membrane
- C Nucleus
- D Mitochondrion
Movement of water across a semipermeable membrane is called:
- A Diffusion of solutes only
- B Phagocytosis
- C Osmosis
- D Active transport
Active transport requires:
- A Only heat
- B No energy
- C Only light
- D ATP
Which organelle contains digestive enzymes?
- A Vacuole only
- B Lysosome
- C Ribosome
- D Centriole
Rough endoplasmic reticulum is rough because of attached:
- A Lipids
- B Ribosomes
- C Chloroplasts
- D Mitochondria
A cell placed in a hypotonic solution will:
- A Divide
- B Shrink
- C Swell
- D Stay the same
جوابی کلید
1. B, 2. C, 3. D, 4. B, 5. B, 6. C
It shows a phospholipid bilayer with proteins embedded in it.
Osmosis is the diffusion of water across a selectively permeable membrane.
It moves substances against a concentration gradient and uses ATP.
Lysosomes digest worn out parts and engulfed material.
Ribosomes on its surface give it a rough appearance.
Water enters the cell, so it swells.