NEW
Font size
WorksheetsBIOLOGY REVISION- CLASS 7
Total questions: 10
Worksheet time: 5mins
1. The process by which green plants prepare their own food in the presence of sunlight is called ___________________
chemosynthesis
photosynthesis
symbiosis
2. All green plants are called___________________
heterotrophs
symbionts
autotrophs
3. The ___________ help in the opening and closing of the stomata.
Guard cells
cell wall
nucleus
4. The digestive tract and the associated glands together constitute the _______________________ system .
respiratory system
digestive system
circulatory system
5. The continuous canal which begins at the buccal cavity and ends at the anus is called __________
Alimentary canal
oesophagus
food pipe
6. The largest gland of the human body is __________ which secretes ______________
Liver, Bile
Pancreas, Pancreatic Juices
Liver, Trypsin
7.The finger like projections present on the inner walls of the small intestine are called as ______________.
Villi
mucus
Rectum
8. Starch is broken down into sugars by the action of ___________
Hydrochloric acid
Salivary amylase
Pepsin
9. Plants need __________ for photosynthesis
carbon di oxide
oxygen
nitrogen
10. Tooth decay/ Plaque is formed because of__________
Sweet food
Acid released by sugars
Spicy food
